1.
Dravo Corporation
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Dravo Corporation was a shipbuilding company with shipyards in Pittsburgh, Pennsylvania and Wilmington, Delaware. It was founded by Frank and Ralph Dravo in Pittsburgh in 1891, the corporation went public in 1936 and in 1998 was bought out by Carmeuse for $192 million. On March 5,1942 it became the first corporation to receive the Army-Navy E Award for outstanding war time production, Dravo ranked 72nd among United States corporations in the value of World War II military production contracts. Neville Island shipyard, Pittsburgh - Started 1919, Constructed LSTs during World War II employing 16,000, Wilmington Shipyard, Delaware, Employed 10,500 during World War II, constructing Destroyer escorts. Heinz History Center Library and Archives Dravo - Wilmington Bethlehem - Wilmington (Prior activity before Dravo, Dravo - Pittsburgh Final Remedial action for cleanup at Wilmington Historical Marker
2.
Pittsburgh
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Pittsburgh is a city in the Commonwealth of Pennsylvania in the United States, and is the county seat of Allegheny County. The city proper has a population of 304,391. The metropolitan population of 2,353,045 is the largest in both the Ohio Valley and Appalachia, the second-largest in Pennsylvania, and the 26th-largest in the U. S. The city features 30 skyscrapers, two inclines, a fortification and the Point State Park at the confluence of the rivers. Aside from steel, Pittsburgh has led in manufacturing of aluminum, glass, shipbuilding, petroleum, foods, sports, transportation, computing, autos, and electronics. For part of the 20th century, Pittsburgh was behind only New York and Chicago in corporate headquarters employment, Americas 1980s deindustrialization laid off area blue-collar workers and thousands of downtown white-collar workers when the longtime Pittsburgh-based world headquarters moved out. The area has served also as the federal agency headquarters for cyber defense, software engineering, robotics, energy research. The area is home to 68 colleges and universities, including research and development leaders Carnegie Mellon University, the region is a hub for Leadership in Energy and Environmental Design, sustainable energy, and energy extraction. Pittsburgh was named in 1758 by General John Forbes, in honor of British statesman William Pitt, 1st Earl of Chatham. The current pronunciation, which is unusual in English speaking countries, is almost certainly a result of a printing error in some copies of the City Charter of March 18,1816. The error was repeated commonly enough throughout the rest of the 19th century that the pronunciation was lost. After a public campaign the original spelling was restored by the United States Board on Geographic Names in 1911. The area of the Ohio headwaters was long inhabited by the Shawnee, the first known European to enter the region was the French explorer/trader Robert de La Salle from Quebec during his 1669 expedition down the Ohio River. European pioneers, primarily Dutch, followed in the early 18th century, Michael Bezallion was the first to describe the forks of the Ohio in a 1717 manuscript, and later that year European fur traders established area posts and settlements. In 1749, French soldiers from Quebec launched an expedition to the forks to unite Canada with French Louisiana via the rivers, during 1753–54, the British hastily built Fort Prince George before a larger French force drove them off. The French built Fort Duquesne based on LaSalles 1669 claims, the French and Indian War, the North American front of the Seven Years War, began with the future Pittsburgh as its center. British General Edward Braddock was dispatched with Major George Washington as his aide to take Fort Duquesne, the British and colonial force were defeated at Braddocks Field. General John Forbes finally took the forks in 1758, Forbes began construction on Fort Pitt, named after William Pitt the Elder while the settlement was named Pittsborough
3.
International Code of Signals
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The International Code of Signals is an international system of signals and codes for use by vessels to communicate important messages regarding safety of navigation and related matters. Signals can be sent by flaghoist, signal lamp, flag semaphore, radiotelegraphy, the International Code is the most recent evolution of a wide variety of maritime flag signalling systems. It has done this by first establishing an alphabet, along with a spoken form of each letter. Combinations of these characters are assigned as codes for various standardized messages. One simply raises the Kilo flag, or sends the Morse Code equivalent by flashing light, one of the elegant aspects of the ICS is that all of the standardized messages come in nine languages. It is immaterial if the sender and receiver are using different languages, the code also covers procedural aspects, how naval ships indicate that they are using the ICS, use in radiotelephony, and various other matters. Prior to 1969, the code was more extensive, covering a wider range of messages. Since 1969, it has reduced to focus on navigation and safety. Signals can be sorted into three groups, Single-letter signals which are very urgent, important, or common, two-letter signals for other messages, sometimes followed with a numerical complement which supplements or modifies the message. Three-letter signals beginning with M, these are the Medical Signal Codes, in some cases, additional characters are added to indicate quantities, bearing, course, distance, date, time, latitude, or longitude. There is also provision for spelling words and for indicating use of other codes, several of the more common single-letter signals are shown at the right. Two-letter signals cover a broad gamut of situations, the reader is urged to download a copy of the Code from the link below. Repeated characters can be a problem in flaghoist, to avoid having to carry multiple sets of signal flags, the Code uses three substitute flags. These repeat the flag at the indicated position, for instance, to signal MAA the Mike, Alfa, and 2nd substitute flags would be flown, the substitute indicating a repeat of the second character. The Medical Signal Code is a means of providing assistance when medical personnel are not present, even where there are no language problems, the Medical Signal Code is useful in providing a standard method of case description and treatment. There is also a standard list of medicaments, keyed to a standard ships medicine chest carried by all merchant ships, the Medical signals all begin with the letter M followed by two more letters, and sometimes with additional numerals or letters. The International Code of Signals was preceded by a variety of signals and private signals, most notably Marryats Code. What is now the International Code of Signals was drafted in 1855 by the British Board of Trade and it came in two parts, the first containing universal and international signals, and the second British signals only
4.
Service star
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The service star may also be referred to as a campaign star or battle star depending on which award is authorized the star and the manner in which the device is used for the award. Service stars, Campaign stars, and Battle stars are worn with one point of the star pointing up on the ribbon of a medal. A silver star is worn instead of five bronze stars, a service star is sometimes mistaken for a Bronze Star or Silver Star. The service star is similar to the gold and silver 5⁄16 Inch Stars which may be authorized to be worn on specific individual decorations of certain services to denote additional decorations. Service stars are authorized for the following United States expeditionary medals, Armed Forces Expeditionary Medal, Navy Expeditionary Medal, Service stars are also authorized for the Global War on Terrorism Expeditionary Medal effective February 9,2015 retroactive to September,11,2001. Each star represents a deployment in support of an approved GWOT operation, only one GWOT-EM is awarded for each operation. The five GWOT-EM approved operations by inclusive dates are, Enduring Freedom,11,2001 - TBD Iraqi Freedom, Mar.19,2003 - Aug.31, 2010Nomad Shadow, Nov.05,2007 - TBD New Dawn, Sep. 01,2010 - Dec.31,2011 Inherent Resolve, the bronze service star is also authorized for certain unit awards such as the Presidential Unit Citation to denote a second and subsequent award. The service ribbon itself indicates the first award, with a service star being added to indicate the second. If ever applicable, a service star is worn instead of five bronze stars. As a result, at least one star will be worn on the ribbon. However, though authorized for wear, no battle stars have been approved for wear, only a combatant commander can initiate a request for a battle star. The Chairman of the Joint Chiefs of Staff is the approving authority, only one award of the Global War on Terrorism Expeditionary Medal and one award of the Global War on Terrorism Service Medal may be authorized for any individual. The specific manner of wear and symbolism of the stars varied from medal to medal, for example, an American Campaign Medal with a bronze service star indicated the service member had participated in an antisubmarine campaign. On other medals, bronze service stars were used on the service ribbon for those recipients of medals in possession of authorized campaign claps for those medals. Similarly, during the Vietnam War and afterwards, the Battle Effectiveness Award took the place of receiving battle stars for superior battle efficiency in place of combat operations. Awards and decorations of the United States military United States military award devices 5/16 inch star Oak leaf cluster United States award regulations for World War II
5.
Landing Ship, Tank
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This provided amphibious assaults to almost any beach. The bow of the LST had a door that would open with a ramp for unloading the vehicles. The LST had a flat keel that allowed the ship to be beached. The twin propellers and rudders had protection from grounding, the LSTs served across the globe during World War II including, Pacific War and European theatre. The first tank landing ships were built to British requirements by converting existing ships, then the British, over 1,000 LSTs were laid down in the United States during World War II for use by the Allies. Eighty more were built in the United Kingdom and Canada, as an interim measure, three 4, 000- to 4, 800-GRT tankers, built to pass over the restrictive bars of Lake Maracaibo, Venezuela, were selected for conversion because of their shallow draft. Bow doors and ramps were added to ships, which became the first tank landing ships, LST, HMS Misoa, Tasajera. They later proved their worth during the invasion of Algeria in 1942, the first purpose-built LST design was HMS Boxer. It was a design from ideas penned by Prime Minister Winston Churchill. In order that it could carry 13 Churchill infantry tanks,27 other vehicles and nearly 200 men at a speed of 18 knots, as a result, each of the three ordered in March 1941 had a very long ramp stowed behind the bow doors. The three ships were converted to Fighter Direction Ships for the invasion of Normandy, the U. S. were to build seven LST but in light of the problems with the design and progress with the LCT Mark II the plans were canceled. Construction of the LCTs took until 1943 and the first US LCT was launched before them, at their first meeting at the Atlantic conference in Argentia, Newfoundland, in August 1941, President Franklin D. Roosevelt and Prime Minister Winston Churchill confirmed the Admiraltys views. During this meeting, it was decided that the Bureau of Ships would design these vessels, as with the standing agreement, these ships would be built by the US so British shipyards could concentrate on building vessels for the Royal Navy. The specifications called for vessels capable of crossing the Atlantic, calling a vessel 300 ft long a craft was considered a misnomer and the type was re-christened Landing Ship, Tank, or LST. The LST design incorporated elements of the first British LCTs from their designer, Sir Rowland Baker, one of the elements provided for sufficient buoyancy in the ships sidewalls so that they would float the ship even when the tank deck was flooded. The LST gave up the speed of HMS Boxer, at only 10 knots, within a few days, John C. Niedermair of the Bureau of Ships sketched out an awkward looking ship that proved to be the design for the more than 1,000 LST that were built during World War II. An anchor and mechanical winch system also aided in the ability to pull itself off the beach
6.
Tonne
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The SI symbol for the tonne is t, adopted at the same time as the unit itself in 1879. Its use is also official, for the metric ton, within the United States, having been adopted by the US National Institute of Standards and it is a symbol, not an abbreviation, and should not be followed by a period. Informal and non-approved symbols or abbreviations include T, mT, MT, in French and all English-speaking countries that are predominantly metric, tonne is the correct spelling. Before metrication in the UK the unit used for most purposes was the Imperial ton of 2,240 pounds avoirdupois, equivalent to 1,016 kg, differing by just 1. 6% from the tonne. Ton and tonne are both derived from a Germanic word in use in the North Sea area since the Middle Ages to designate a large cask. A full tun, standing about a high, could easily weigh a tonne. An English tun of wine weighs roughly a tonne,954 kg if full of water, in the United States, the unit was originally referred to using the French words millier or tonneau, but these terms are now obsolete. The Imperial and US customary units comparable to the tonne are both spelled ton in English, though they differ in mass, one tonne is equivalent to, Metric/SI,1 megagram. Equal to 1000000 grams or 1000 kilograms, megagram, Mg, is the official SI unit. Mg is distinct from mg, milligram, pounds, Exactly 1000/0. 453 592 37 lb, or approximately 2204.622622 lb. US/Short tons, Exactly 1/0. 907 184 74 short tons, or approximately 1.102311311 ST. One short ton is exactly 0.90718474 t, imperial/Long tons, Exactly 1/1. 016 046 9088 long tons, or approximately 0.9842065276 LT. One long ton is exactly 1.0160469088 t, for multiples of the tonne, it is more usual to speak of thousands or millions of tonnes. Kilotonne, megatonne, and gigatonne are more used for the energy of nuclear explosions and other events. When used in context, there is little need to distinguish between metric and other tons, and the unit is spelt either as ton or tonne with the relevant prefix attached. *The equivalent units columns use the short scale large-number naming system used in most English-language countries. †Values in the equivalent short and long tons columns are rounded to five significant figures, ǂThough non-standard, the symbol kt is also sometimes used for knot, a unit of speed for sea-going vessels, and should not be confused with kilotonne. A metric ton unit can mean 10 kilograms within metal trading and it traditionally referred to a metric ton of ore containing 1% of metal. In the case of uranium, the acronym MTU is sometimes considered to be metric ton of uranium, in the petroleum industry the tonne of oil equivalent is a unit of energy, the amount of energy released by burning one tonne of crude oil, approximately 42 GJ
7.
Draft (hull)
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Draft determines the minimum depth of water a ship or boat can safely navigate. The draft can also be used to determine the weight of the cargo on board by calculating the displacement of water. A table made by the shows the water displacement for each draft. The density of the water and the content of the bunkers has to be taken into account. The closely related term trim is defined as the difference between the forward and aft drafts, the draft aft is measured in the perpendicular of the stern. The draft forward is measured in the perpendicular of the bow, the scale may use traditional English units or metric units. If the English system is used, the bottom of each marking is the draft in feet, in metric marking schemes, the bottom of each draft mark is the draft in decimeters and each mark is one decimeter high. Larger ships try to maintain a water draft when they are light, in order to make a better sea crossing. In order to achieve this they use sailing ballasts to stabilize the ship, the water draft of a large ship has little direct link with its stability because stability depends solely on the respective positions of the metacenter of the hull and the center of gravity. It is also however, that a light ship has quite high stability which can lead to implying too much rolling of the ship. A fully laden ship can have either a strong or weak stability, the draft of ships can be increased when the ship is in motion in shallow water, a phenomenon known as squat. Draft is a significant factor limiting navigable waterways, especially for large vessels, of course this includes many shallow coastal waters and reefs, but also some major shipping lanes. Panamax class ships—the largest ships able to transit the Panama Canal—do have a limit but are usually limited by beam, or sometimes length overall. However, in the much wider Suez Canal, the factor for Suezmax ships is draft. Some supertankers are able to transit the Suez Canal when unladen or partially laden, canals are not the only draft-limited shipping lanes. A Malaccamax ship has the deepest draft able to transit the very busy, there are only a few ships of this size. A small draft allows pleasure boats to navigate through shallower water and this makes it possible for these boats to access smaller ports, to travel along rivers and even to beach the boat. A large draft ensures a level of stability in strong wind
8.
Foot (unit)
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The foot is a unit of length in the imperial and US customary systems of measurement. Since 1959, both units have been defined by international agreement as equivalent to 0.3048 meters exactly, in both systems, the foot comprises 12 inches and three feet compose a yard. Historically the foot was a part of local systems of units, including the Greek, Roman, Chinese, French. It varied in length from country to country, from city to city and its length was usually between 250 mm and 335 mm and was generally, but not always, subdivided into 12 inches or 16 digits. The United States is the industrialized nation that uses the international foot and the survey foot in preference to the meter in its commercial, engineering. The foot is legally recognized in the United Kingdom, road signs must use imperial units, the measurement of altitude in international aviation is one of the few areas where the foot is widely used outside the English-speaking world. The length of the international foot corresponds to a foot with shoe size of 13,14,15.5 or 46. Historically the human body has been used to provide the basis for units of length. The foot of a male is typically about 15. 3% of his height, giving a person of 160 cm a foot of 245 mm. These figures are less than the used in most cities over time. Archeologists believe that the Egyptians, Ancient Indians and Mesopotamians preferred the cubit while the Romans, under the Harappan linear measures, Indus cities during the Bronze Age used a foot of 13.2 inches and a cubit of 20.8 inches. The Egyptian equivalent of the measure of four palms or 16 digits—was known as the djeser and has been reconstructed as about 30 cm. The Greek foot had a length of 1⁄600 of a stadion, one stadion being about 181.2 m, the standard Roman foot was normally about 295.7 mm, but in the provinces, the pes Drusianus was used, with a length of about 334 mm. Originally both the Greeks and the Romans subdivided the foot into 16 digits, but in later years, after the fall of the Roman Empire, some Roman traditions were continued but others fell into disuse. In AD790 Charlemagne attempted to reform the units of measure in his domains and his units of length were based on the toise and in particular the toise de lÉcritoire, the distance between the fingertips of the outstretched arms of a man. The toise has 6 pieds each of 326.6 mm, at the same time, monastic buildings used the Carolingian foot of 340 mm. The procedure for verification of the foot as described in the 16th century by Jacob Koebel in his book Geometrei, the measures of Iron Age Britain are uncertain and proposed reconstructions such as the Megalithic Yard are controversial. Later Welsh legend credited Dyfnwal Moelmud with the establishment of their units, the Belgic or North German foot of 335 mm was introduced to England either by the Belgic Celts during their invasions prior to the Romans or by the Anglo-Saxons in the 5th & 6th century
9.
Metre
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The metre or meter, is the base unit of length in the International System of Units. The metre is defined as the length of the path travelled by light in a vacuum in 1/299792458 seconds, the metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole. In 1799, it was redefined in terms of a metre bar. In 1960, the metre was redefined in terms of a number of wavelengths of a certain emission line of krypton-86. In 1983, the current definition was adopted, the imperial inch is defined as 0.0254 metres. One metre is about 3 3⁄8 inches longer than a yard, Metre is the standard spelling of the metric unit for length in nearly all English-speaking nations except the United States and the Philippines, which use meter. Measuring devices are spelled -meter in all variants of English, the suffix -meter has the same Greek origin as the unit of length. This range of uses is found in Latin, French, English. Thus calls for measurement and moderation. In 1668 the English cleric and philosopher John Wilkins proposed in an essay a decimal-based unit of length, as a result of the French Revolution, the French Academy of Sciences charged a commission with determining a single scale for all measures. In 1668, Wilkins proposed using Christopher Wrens suggestion of defining the metre using a pendulum with a length which produced a half-period of one second, christiaan Huygens had observed that length to be 38 Rijnland inches or 39.26 English inches. This is the equivalent of what is now known to be 997 mm, no official action was taken regarding this suggestion. In the 18th century, there were two approaches to the definition of the unit of length. One favoured Wilkins approach, to define the metre in terms of the length of a pendulum which produced a half-period of one second. The other approach was to define the metre as one ten-millionth of the length of a quadrant along the Earths meridian, that is, the distance from the Equator to the North Pole. This means that the quadrant would have defined as exactly 10000000 metres at that time. To establish a universally accepted foundation for the definition of the metre, more measurements of this meridian were needed. This portion of the meridian, assumed to be the length as the Paris meridian, was to serve as the basis for the length of the half meridian connecting the North Pole with the Equator
10.
Horsepower
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Horsepower is a unit of measurement of power. There are many different standards and types of horsepower, two common definitions being used today are the mechanical horsepower, which is approximately 746 watts, and the metric horsepower, which is approximately 735.5 watts. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of engines with the power of draft horses. It was later expanded to include the power of other types of piston engines, as well as turbines, electric motors. The definition of the unit varied among geographical regions, most countries now use the SI unit watt for measurement of power. With the implementation of the EU Directive 80/181/EEC on January 1,2010, units called horsepower have differing definitions, The mechanical horsepower, also known as imperial horsepower equals approximately 745.7 watts. It was defined originally as exactly 550 foot-pounds per second [745.7 N. m/s), the metric horsepower equals approximately 735.5 watts. It was defined originally as 75 kgf-m per second is approximately equivalent to 735.5 watts, the Pferdestärke PS is a name for a group of similar power measurements used in Germany around the end of the 19th century, all of about one metric horsepower in size. The boiler horsepower equals 9809.5 watts and it was used for rating steam boilers and is equivalent to 34.5 pounds of water evaporated per hour at 212 degrees Fahrenheit. One horsepower for rating electric motors is equal to 746 watts, one horsepower for rating Continental European electric motors is equal to 735 watts. Continental European electric motors used to have dual ratings, one British Royal Automobile Club horsepower can equal a range of values based on estimates of several engine dimensions. It is one of the tax horsepower systems adopted around Europe, the development of the steam engine provided a reason to compare the output of horses with that of the engines that could replace them. He had previously agreed to take royalties of one third of the savings in coal from the older Newcomen steam engines and this royalty scheme did not work with customers who did not have existing steam engines but used horses instead. Watt determined that a horse could turn a mill wheel 144 times in an hour, the wheel was 12 feet in radius, therefore, the horse travelled 2.4 × 2π ×12 feet in one minute. Watt judged that the horse could pull with a force of 180 pounds-force. So, P = W t = F d t =180 l b f ×2.4 ×2 π ×12 f t 1 m i n =32,572 f t ⋅ l b f m i n. Watt defined and calculated the horsepower as 32,572 ft·lbf/min, Watt determined that a pony could lift an average 220 lbf 100 ft per minute over a four-hour working shift. Watt then judged a horse was 50% more powerful than a pony, engineering in History recounts that John Smeaton initially estimated that a horse could produce 22,916 foot-pounds per minute
11.
Kilowatt
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The watt is a derived unit of power in the International System of Units defined as 1 joule per second and can be used to quantify the rate of energy transfer. Power has dimensions of M L2 T −3, when an objects velocity is held constant at one meter per second against constant opposing force of one newton the rate at which work is done is 1 watt. 1 W =1 V ⋅ A Two additional unit conversions for watt can be using the above equation. 1 W =1 V2 Ω =1 A2 ⋅ Ω Where ohm is the SI derived unit of electrical resistance, a person having a mass of 100 kilograms who climbs a 3-meter-high ladder in 5 seconds is doing work at a rate of about 600 watts. Mass times acceleration due to gravity times height divided by the time it takes to lift the object to the given height gives the rate of doing work or power. A laborer over the course of an 8-hour day can sustain an output of about 75 watts, higher power levels can be achieved for short intervals. The watt is named after the Scottish scientist James Watt for his contributions to the development of the steam engine, in 1960 the 11th General Conference on Weights and Measures adopted it for the measurement of power into the International System of Units. For additional examples of magnitude for multiples and submultiples of the watt, technologically important powers that are measured in femtowatts are typically found in reference to radio and radar receivers. For example, meaningful FM tuner performance figures for sensitivity, quieting and these input levels are often stated in dBf. This is 0.2739 microvolt across a 75-ohm load or 0.5477 microvolt across a 300-ohm load, the picowatt is equal to one trillionth of a watt. Technologically important powers that are measured in picowatts are typically used in reference to radio and radar receivers, acoustics, the nanowatt is equal to one billionth of a watt. Important powers that are measured in nanowatts are also used in reference to radio. The microwatt is equal to one millionth of a watt, compact solar cells for devices such as calculators and watches are typically measured in microwatts. The milliwatt is equal to one thousandth of a watt, a typical laser pointer outputs about five milliwatts of light power, whereas a typical hearing aid for people uses less than one milliwatt. Audio signals and other electronic signal levels are measured in dBm. The kilowatt is equal to one thousand watts and this unit is typically used to express the output power of engines and the power of electric motors, tools, machines, and heaters. It is also a unit used to express the electromagnetic power output of broadcast radio. One kilowatt is equal to 1.34 horsepower
12.
Electro-Motive Diesel
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Electro-Motive Diesel is an American manufacturer of diesel-electric locomotives, locomotive products and diesel engines for the rail industry. The company is owned by Caterpillar through its subsidiary Progress Rail Services Corporation, in 1930, General Motors purchased Electro-Motive Company and the Winton Engine Co. combining the two to form its Electro-Motive Division in 1941. In 2005, GM sold EMD to Greenbriar Equity Group and Berkshire Partners, in 2010, Progress Rail Services completed the purchase of Electro-Motive Diesel from Greenbriar, Berkshire, and others. EMDs headquarters, engineering facilities and parts manufacturing operations are based in McCook, Illinois, while its final assembly line is located in Muncie. EMD also operates a traction motor maintenance, rebuild and overhaul facility in San Luis Potosí, as of 2008, EMD employed approximately 3,260 people, and in 2010 it held approximately 30 percent of the market for diesel-electric locomotives in North America. Harold L. Hamilton and Paul Turner founded the Electro-Motive Engineering Corporation in Cleveland, Ohio, in 1922, the company developed and marketed self-propelled railcars using General Electrics newly developed internal combustion-electric propulsion and control systems. Hamilton started his career as a fireman, then locomotive engineer, on the Southern Pacific Railroad. Financing himself, he quit his sales position and set up shop in a hotel with his partner. In 1923 EMC sold two gasoline-powered rail motor cars, one to the Chicago Great Western and the other to the Northern Pacific, EMC subcontracted the body construction to St. Louis Car Company, electrical components to General Electric, and the prime mover to Winton Engine Company. The motorcars were delivered in 1924 and worked well, fortunate for the fledgling company, in 1925, EMC entered full-scale production, selling 27 railcars. In 1930 General Motors was seeking to improve their Diesel technology and they purchased the Winton Engine Company who, in addition to their Diesel products, sold non-Diesel engines for EMC-developed rail motorcars. The combined resources of GM and their new Winton subsidiary were focused on developing Diesel engines with improved power-to-weight ratios, GM saw EMCs role in marketing and applications development as fitting their objectives and purchased the company shortly after the Winton acquisition, renaming it Electro-Motive Corporation. In 1933 EMC designed the power setups for the Zephyr and M-10000 streamliners, the Zephyr used the first major product of the new GM-Winton venture, the 600 hp Winton 201A 2-stroke Diesel engine. Encouraged by the success of the new streamliners, EMC invested in a new locomotive factory. The new headquarters on 55th Street in McCook, Illinois, west of Chicago, in 1938 EMC started production of locomotives using GMs new 567 engine, which upgraded the horsepower to 2000 per locomotive unit and increased reliability. The 567, named for its displacement-per-cylinder of 567.45 in³, was a two-cycle Roots-blown, Uniflow-scavenged, Unit-injected engine with overhead camshafts and it was built as a V-6, V-8, V-12 and V-16. Charles F. Kettering and the General Motors Research Corporation were in charge of its development and their nearest competitor was the American Locomotive Company, who started production of less-developed Diesel locomotives to compete with the E-units in 1939. Baldwins response to the challenge of the E-units was to develop a steam locomotive design that pushed beyond the limits of practicality, passenger trains made little money for the railroads, but replacement of steam engines with reliable Diesel units could provide railroads with a crucial difference for profitability
13.
EMD 567
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The EMD567 is a line of large medium-speed diesel engines built by General Motors Electro-Motive Division. This engine, which succeeded Wintons 201A, was used in EMDs locomotives from 1938 until its replacement in 1966 by the EMD645 and it has a bore of 8 1⁄2 in, a stroke of 10 in and a displacement of 567 cu in per cylinder. Like the 201A, the EMD645 and the EMD710 and it is a V engine with an angle of 45° between cylinder banks. The 710,645, and 567 are the only two-stroke engines commonly used today in locomotives, eugene W. Kettering, son of Charles F. Kettering, joined Winton Engine in 1930. He moved to Detroit in 1936, and was a figure in the development of the 567. He moved to EMD in 1938, became Chief Engineer at EMD in 1948, then Division Director in 1956, although this power increase is not recommended, horsepower-for-horsepower updates are quite successful and common. Because of their age,567 engines are exempt from emissions rules. EMD manufactures a series of 645 power assemblies which are particularly useful in updating these exempt 567 engines. EMDs chief competitor, GE, now makes EMD-compatible replacement parts, all 567 engines are two-stroke 45 degree V-engines. The engine is a design with four poppet-type exhaust valves in the cylinder head. For maintenance, an assembly, consisting of a cylinder head, cylinder liner, piston, piston carrier. The block is made flat, formed and rolled structural steel members. Blocks may, therefore, be repaired, if required. Each bank of cylinders has a camshaft which operates the exhaust valves. The 567 is laid out with engine accessories at the forward end, the blowers and camshafts are at the rear end of the engine, with the blowers mounted above the power take off. All engines have mechanically-controlled unit injectors, see EMD645 for general specifications common to all 567-645-710 engines. All 567 engines utilize forced induction, with either a Roots blower or a turbocharger, at higher engine speeds, increased exhaust gas temperature is sufficient to drive the turbine and the clutch disengages, turning the turbo-compressor system into a true turbocharger. The turbo-compressor can revert to compressor mode momentarily during demands for large increases in output power
14.
Diesel engine
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Diesel engines work by compressing only the air. This increases the air temperature inside the cylinder to such a degree that it ignites atomised diesel fuel that is injected into the combustion chamber. This contrasts with spark-ignition engines such as an engine or gas engine. In diesel engines, glow plugs may be used to aid starting in cold weather, or when the engine uses a lower compression-ratio, the original diesel engine operates on the constant pressure cycle of gradual combustion and produces no audible knock. Low-speed diesel engines can have an efficiency that exceeds 50%. Diesel engines may be designed as either two-stroke or four-stroke cycles and they were originally used as a more efficient replacement for stationary steam engines. Since the 1910s they have used in submarines and ships. Use in locomotives, trucks, heavy equipment and electricity generation plants followed later, in the 1930s, they slowly began to be used in a few automobiles. Since the 1970s, the use of engines in larger on-road and off-road vehicles in the US increased. According to the British Society of Motor Manufacturing and Traders, the EU average for diesel cars accounts for 50% of the total sold, including 70% in France and 38% in the UK. The worlds largest diesel engine is currently a Wärtsilä-Sulzer RTA96-C Common Rail marine diesel, the definition of a Diesel engine to many has become an engine that uses compression ignition. To some it may be an engine that uses heavy fuel oil, to others an engine that does not use spark ignition. However the original cycle proposed by Rudolf Diesel in 1892 was a constant temperature cycle which would require higher compression than what is needed for compression ignition. Diesels idea was to compress the air so tightly that the temperature of the air would exceed that of combustion, to make this more clear, let it be assumed that the subsequent combustion shall take place at a temperature of 700°. Then in that case the pressure must be sixty-four atmospheres, or for 800° centigrade the pressure must be ninety atmospheres. In later years Diesel realized his original cycle would not work, Diesel describes the cycle in his 1895 patent application. Notice that there is no longer a mention of compression temperatures exceeding the temperature of combustion, now all that is mentioned is the compression must be high enough for ignition. In 1806 Claude and Nicéphore Niépce developed the first known internal combustion engine, the Pyréolophore fuel system used a blast of air provided by a bellows to atomize Lycopodium
15.
Gear train
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A transmission is a machine in a power transmission system, which provides controlled application of the power. Often the term refers simply to the gearbox that uses gears and gear trains to provide speed. In British English, the term refers to the whole drivetrain, including clutch, gearbox, prop shaft, differential. In American English, however, the term more specifically to the gearbox alone. The most common use is in vehicles, where the transmission adapts the output of the internal combustion engine to the drive wheels. Such engines need to operate at a high rotational speed, which is inappropriate for starting, stopping. The transmission reduces the engine speed to the slower wheel speed. Transmissions are also used on bicycles, fixed machines. Often, a transmission has multiple gear ratios with the ability to switch between them as speed varies and this switching may be done manually or automatically. Directional control may also be provided, single-ratio transmissions also exist, which simply change the speed and torque of motor output. The output of the transmission is transmitted via the driveshaft to one or more differentials, while a differential may also provide gear reduction, its primary purpose is to permit the wheels at either end of an axle to rotate at different speeds as it changes the direction of rotation. Conventional gear/belt transmissions are not the mechanism for speed/torque adaptation. Alternative mechanisms include torque converters and power transformation, automatic transmissions use a valve body to shift gears using fluid pressures in conjunction with an ecm. Early transmissions included the right-angle drives and other gearing in windmills, horse-powered devices, and steam engines, in support of pumping, milling, most modern gearboxes are used to increase torque while reducing the speed of a prime mover output shaft. This means that the shaft of a gearbox rotates at a slower rate than the input shaft. A gearbox can be set up to do the opposite and provide an increase in speed with a reduction of torque. Some of the simplest gearboxes merely change the rotational direction of power transmission. Many typical automobile transmissions include the ability to select one of several gear ratios, in this case, most of the gear ratios are used to slow down the output speed of the engine and increase torque
16.
Propeller
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A propeller is a type of fan that transmits power by converting rotational motion into thrust. A pressure difference is produced between the forward and rear surfaces of the blade, and a fluid is accelerated behind the blade. Their disadvantages are higher mechanical complexity and higher cost, the principle employed in using a screw propeller is used in sculling. It is part of the skill of propelling a Venetian gondola but was used in a less refined way in parts of Europe. For example, propelling a canoe with a paddle using a pitch stroke or side slipping a canoe with a scull involves a similar technique. In China, sculling, called lu, was used by the 3rd century AD. In sculling, a blade is moved through an arc. The innovation introduced with the propeller was the extension of that arc through more than 360° by attaching the blade to a rotating shaft. Propellers can have a blade, but in practice there are nearly always more than one so as to balance the forces involved. The origin of the screw propeller starts with Archimedes, who used a screw to lift water for irrigation and bailing boats and it was probably an application of spiral movement in space to a hollow segmented water-wheel used for irrigation by Egyptians for centuries. Leonardo da Vinci adopted the principle to drive his theoretical helicopter, in 1784, J. P. Paucton proposed a gyrocopter-like aircraft using similar screws for both lift and propulsion. At about the time, James Watt proposed using screws to propel boats. This was not his own invention, though, Toogood and Hays had patented it a century earlier, by 1827, Czech-Austrian inventor Josef Ressel had invented a screw propeller which had multiple blades fastened around a conical base. He had tested his propeller in February 1826 on a ship that was manually driven. He was successful in using his bronze screw propeller on an adapted steamboat and his ship Civetta with 48 gross register tons, reached a speed of about six knots. This was the first ship successfully driven by an Archimedes screw-type propeller, after a new steam engine had an accident his experiments were banned by the Austro-Hungarian police as dangerous. Josef Ressel was at the time a forestry inspector for the Austrian Empire, but before this he received an Austro-Hungarian patent for his propeller. This new method of propulsion was an improvement over the paddlewheel as it was not so affected by either ship motions or changes in draft as the burned coal
17.
Knot (unit)
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The knot is a unit of speed equal to one nautical mile per hour, approximately 1.151 mph. The ISO Standard symbol for the knot is kn, the same symbol is preferred by the IEEE, kt is also common. The knot is a unit that is accepted for use with the SI. Etymologically, the term derives from counting the number of knots in the line that unspooled from the reel of a log in a specific time. 1 international knot =1 nautical mile per hour,1.852 kilometres per hour,0.514 metres per second,1.151 miles per hour,20.254 inches per second,1852 m is the length of the internationally agreed nautical mile. The US adopted the definition in 1954, having previously used the US nautical mile. The UK adopted the international nautical mile definition in 1970, having used the UK Admiralty nautical mile. The speeds of vessels relative to the fluids in which they travel are measured in knots, for consistency, the speeds of navigational fluids are also measured in knots. Thus, speed over the ground and rate of progress towards a distant point are given in knots. Until the mid-19th century, vessel speed at sea was measured using a chip log, the chip log was cast over the stern of the moving vessel and the line allowed to pay out. Knots placed at a distance of 8 fathoms -47 feet 3 inches from each other, passed through a sailors fingers, the knot count would be reported and used in the sailing masters dead reckoning and navigation. This method gives a value for the knot of 20.25 in/s, the difference from the modern definition is less than 0. 02%. On a chart of the North Atlantic, the scale varies by a factor of two from Florida to Greenland, a single graphic scale, of the sort on many maps, would therefore be useless on such a chart. Recent British Admiralty charts have a latitude scale down the middle to make this even easier, speed is sometimes incorrectly expressed as knots per hour, which is in fact a measure of acceleration. Prior to 1969, airworthiness standards for aircraft in the United States Federal Aviation Regulations specified that distances were to be in statute miles. In 1969, these standards were amended to specify that distances were to be in nautical miles. At 11000 m, an airspeed of 300 kn may correspond to a true airspeed of 500 kn in standard conditions. Beaufort scale Hull speed, which deals with theoretical estimates of maximum speed of displacement hulls Knot count Knotted cord Metre per second Orders of magnitude Rope Kemp
18.
Kilometres per hour
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The kilometre per hour is a unit of speed, expressing the number of kilometres travelled in one hour. Worldwide, it is the most commonly used unit of speed on road signs, the Dutch on the other hand adopted the kilometre in 1817 but gave it the local name of the mijl. The SI representations, classified as symbols, are km/h, km h−1 and km·h−1, the use of abbreviations dates back to antiquity, but abbreviations for kilometres per hour did not appear in the English language until the late nineteenth century. The kilometre, a unit of length, first appeared in English in 1810, kilometres per hour did not begin to be abbreviated in print until many years later, with several different abbreviations existing near-contemporaneously. For example, news organisations such as Reuters and The Economist require kph, in Australian unofficial usage, km/h is sometimes pronounced and written as klicks or clicks. The use of symbols to replace words dates back to at least the medieval era when Johannes Widman, writing in German in 1486. In the early 1800s Berzelius introduced a symbolic notation for the chemical elements derived from the elements Latin names, typically, Na was used for the element sodium and H2O for water. In 1879, four years after the signing of the Treaty of the Metre, among these were the use of the symbol km for kilometre. In 1948, as part of its work for the SI. The SI explicitly states that unit symbols are not abbreviations and are to be using a very specific set of rules. Hence the name of the unit can be replaced by a kind of algebraic symbol and this symbol is not merely an abbreviation but a symbol which, like chemical symbols, must be used in a precise and prescribed manner. SI, and hence the use of km/h has now been adopted around the world in areas related to health and safety. It is also the system of measure in academia and in education. During the early years of the car, each country developed its own system of road signs. In 1968 the Vienna Convention on Road Signs and Signals was drawn up under the auspices of the United Nations Economic, many countries have since signed the convention and adopted its proposals. The use of SI implicitly required that states use km/h as the shorthand for kilometres per hour on official documents. Examples include, Dutch, kilometer per uur, Portuguese, quilómetro por hora Greek, in 1988 the United States National Highway Traffic Safety Administration promulgated a rule stating that MPH and/or km/h were to be used in speedometer displays. On May 15,2000 this was clarified to read MPH, or MPH, however, the Federal Motor Vehicle Safety Standard number 101 allows any combination of upper- and lowercase letters to represent the units
19.
Miles per hour
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Miles per hour is an imperial and United States customary unit of speed expressing the number of statute miles covered in one hour. Miles per hour is the also used in the Canadian rail system. In some countries mph may be used to express the speed of delivery of a ball in sporting events such as cricket, tennis, road traffic speeds in other countries are indicated in kilometres per hour, while occasionally both systems are used. For example, in Ireland, a considered a speeding case by examining speeds in both kilometres per hour and miles per hour. The judge was quoted as saying the speed seemed very excessive at 180 km/h but did not look as bad at 112 mph, nautical and aeronautical applications, however, favour the knot as a common unit of speed. 1 Mph =0.000277778 Mps Example, Apollo 11 attained speeds of 25,000 Mph, if Apollo 11 were to travel at 25,000 Mph from New York to Los Angeles it would reach Los Angeles in under 6 minutes
20.
LCVP (United States)
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The landing craft, vehicle, personnel or Higgins boat was a landing craft used extensively in amphibious landings in World War II. The craft was designed by Andrew Higgins based on boats made for operating in swamps, more than 20,000 were built, by Higgins Industries and licensees. Typically constructed from plywood, this shallow-draft, barge-like boat could ferry a platoon-sized complement of 36 men to shore at 9 knots. Men generally entered the boat by climbing down a cargo net hung from the side of their troop transport, they exited by charging down the boats bow ramp. Satisfactory in most respects, the major drawback appeared to be that equipment had to be unloaded. However, it was put into production and service as the craft, personnel. The LCP had two gun positions at the bow. The LCP, commonly called the U-boat or the Higgins boat, was supplied to the British, to whom it was known as the R-boat. Within one month, tests of the ramp-bow Eureka boat in Lake Pontchartrain showed conclusively that successful operation of such a boat was feasible and this boat became the Landing Craft, Personnel or LCP. The machine gun positions were still at the front of the boat, the design was still not ideal, because the ramp was a bottleneck for the troops, as was the case with the British Landing Craft Assault of the year before. The next step was to fit a full-width ramp, now troops could leave en masse and a small vehicle such as a Jeep could be carried, this new version became the LCVP, or simply, the Higgins boat. The machine gun positions were moved to the rear of the boat, at just over 36 ft long and just under 11 ft wide, the LCVP was not a large craft. Powered by a 225-horsepower Diesel engine at 12 knots, it would sway in choppy seas, since its sides and rear were made of plywood, it offered limited protection from enemy fire. The Higgins boat could hold either a 36-man platoon, a jeep and its shallow draft enabled it to run up onto the shoreline, and a semi-tunnel built into its hull protected the propeller from sand and other debris. The steel ramp at the front could be lowered quickly and it was possible for the Higgins boat to swiftly disembark men and supplies, reverse itself off the beach, and head back out to the supply ship for another load within three to four minutes. If Higgins had not designed and built those LCVPs, we never could have landed over an open beach, the whole strategy of the war would have been different. Only a few Higgins boats have survived, often with modifications for post-War use. A remarkably preserved Higgins boat, with the original Higgins motor, was discovered in a yard in Valdez, Alaska
21.
Pound (mass)
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The pound or pound-mass is a unit of mass used in the imperial, United States customary and other systems of measurement. The international standard symbol for the pound is lb. The unit is descended from the Roman libra, the English word pound is cognate with, among others, German Pfund, Dutch pond, and Swedish pund. All ultimately derive from a borrowing into Proto-Germanic of the Latin expression lībra pondō, usage of the unqualified term pound reflects the historical conflation of mass and weight. This accounts for the modern distinguishing terms pound-mass and pound-force, the United States and countries of the Commonwealth of Nations agreed upon common definitions for the pound and the yard. Since 1 July 1959, the avoirdupois pound has been defined as exactly 0.45359237 kg. In the United Kingdom, the use of the pound was implemented in the Weights and Measures Act 1963.9144 metre exactly. An avoirdupois pound is equal to 16 avoirdupois ounces and to exactly 7,000 grains, the conversion factor between the kilogram and the international pound was therefore chosen to be divisible by 7, and an grain is thus equal to exactly 64.79891 milligrams. The US has not adopted the system despite many efforts to do so. Historically, in different parts of the world, at different points in time, and for different applications, the libra is an ancient Roman unit of mass that was equivalent to approximately 328.9 grams. It was divided into 12 unciae, or ounces, the libra is the origin of the abbreviation for pound, lb. A number of different definitions of the pound have historically used in Britain. Amongst these were the avoirdupois pound and the tower, merchants. Historically, the sterling was a tower pound of silver. In 1528, the standard was changed to the Troy pound, the avoirdupois pound, also known as the wool pound, first came into general use c. It was initially equal to 6992 troy grains, the pound avoirdupois was divided into 16 ounces. During the reign of Queen Elizabeth, the pound was redefined as 7,000 troy grains. Since then, the grain has often been a part of the avoirdupois system
22.
Kilogram
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The kilogram or kilogramme is the base unit of mass in the International System of Units and is defined as being equal to the mass of the International Prototype of the Kilogram. The avoirdupois pound, used in both the imperial and US customary systems, is defined as exactly 0.45359237 kg, making one kilogram approximately equal to 2.2046 avoirdupois pounds. Other traditional units of weight and mass around the world are also defined in terms of the kilogram, the gram, 1/1000 of a kilogram, was provisionally defined in 1795 as the mass of one cubic centimeter of water at the melting point of ice. The final kilogram, manufactured as a prototype in 1799 and from which the IPK was derived in 1875, had an equal to the mass of 1 dm3 of water at its maximum density. The kilogram is the only SI base unit with an SI prefix as part of its name and it is also the only SI unit that is still directly defined by an artifact rather than a fundamental physical property that can be reproduced in different laboratories. Three other base units and 17 derived units in the SI system are defined relative to the kilogram, only 8 other units do not require the kilogram in their definition, temperature, time and frequency, length, and angle. At its 2011 meeting, the CGPM agreed in principle that the kilogram should be redefined in terms of the Planck constant, the decision was originally deferred until 2014, in 2014 it was deferred again until the next meeting. There are currently several different proposals for the redefinition, these are described in the Proposed Future Definitions section below, the International Prototype Kilogram is rarely used or handled. In the decree of 1795, the term gramme thus replaced gravet, the French spelling was adopted in the United Kingdom when the word was used for the first time in English in 1797, with the spelling kilogram being adopted in the United States. In the United Kingdom both spellings are used, with kilogram having become by far the more common, UK law regulating the units to be used when trading by weight or measure does not prevent the use of either spelling. In the 19th century the French word kilo, a shortening of kilogramme, was imported into the English language where it has used to mean both kilogram and kilometer. In 1935 this was adopted by the IEC as the Giorgi system, now known as MKS system. In 1948 the CGPM commissioned the CIPM to make recommendations for a practical system of units of measurement. This led to the launch of SI in 1960 and the subsequent publication of the SI Brochure, the kilogram is a unit of mass, a property which corresponds to the common perception of how heavy an object is. Mass is a property, that is, it is related to the tendency of an object at rest to remain at rest, or if in motion to remain in motion at a constant velocity. Accordingly, for astronauts in microgravity, no effort is required to hold objects off the cabin floor, they are weightless. However, since objects in microgravity still retain their mass and inertia, the ratio of the force of gravity on the two objects, measured by the scale, is equal to the ratio of their masses. On April 7,1795, the gram was decreed in France to be the weight of a volume of pure water equal to the cube of the hundredth part of the metre
23.
Cargo
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Multi-modal container units, designed as reusable carriers to facilitate unit load handling of the goods contained, are also referred to as cargo, specially by shipping lines and logistics operators. Similarly, aircraft ULD boxes are also documented as cargo, with associated packing list of the contained within. When empty containers are shipped each unit is documented as a cargo and when goods are stored within, seaport terminals handle a wide range of maritime cargo. Automobiles are handled at many ports and are carried on specialized roll-on/roll-off ships. Break bulk cargo is typically stacked on pallets and lifted into. The volume of bulk cargo has declined dramatically worldwide as containerization has grown. One way to secure break bulk and freight in intermodal containers is by using Dunnage Bags, bulk cargo, such as salt, oil, tallow, and scrap metal, is usually defined as commodities that are neither on pallets nor in containers. Bulk cargoes are not handled as individual pieces, the way heavy-lift, alumina, grain, gypsum, logs, and wood chips, for instance, are bulk cargoes. Neo-bulk cargo comprises individual units that are counted as they are loaded and unloaded, in contrast to bulk cargo that is not counted, containers are the largest and fastest growing cargo category at most ports worldwide. Containerized cargo includes everything from auto parts, machinery and manufacturing components to shoes and toys to frozen meat, air cargo, commonly known as air freight, is collected by firms from shippers and delivered to customers. Aircraft were first used for carrying mail as cargo in 1911, eventually manufacturers started designing aircraft for other types of freight as well. There are many commercial aircraft suitable for carrying cargo such as the Boeing 747 and the bigger An‑124, such large aircraft employ quick-loading containers known as unit load devices, much like containerized cargo ships. The ULDs are located in the front section of the aircraft, most nations own and utilize large numbers of military cargo aircraft such as the C‑17 Globemaster III for logistical needs. Popular commercial aircraft transformed to an aircraft such as Saab 340A is designed for high revenue. Trains are capable of transporting a number of containers that come from shipping ports. Trains are also used for the transportation of water, cement, grain, steel, wood and they are used because they can carry a large amount and generally have a direct route to the destination. Under the right circumstances, freight transport by rail is more economic and energy efficient than by road, the main disadvantage of rail freight is its lack of flexibility. For this reason, rail has lost much of the business to road transport
24.
Officer (armed forces)
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An officer is a member of an armed force or uniformed service who holds a position of authority. In this sense, officers are not enlisted, but hold appointments from their government that typically remain in force indefinitely unless resigned, the proportion of officers varies greatly. Officers typically make up between an eighth and a fifth of modern armed forces personnel, in 2013, officers were the senior 17% of the British armed forces, and the senior 13. 7% of the French armed forces. In 2012, officers made up about 18% of the German armed forces, historically, however, armed forces have generally had much lower proportions of officers. During the First World War, fewer than 5% of British soldiers were officers, in the early twentieth century, the Spanish army had the highest proportion of officers of any European army, at 12. 5%. Within a nations armed forces, armies tend to have a proportion of officers. For example,13. 9% of British army personnel and 22. 2% of the RAF personnel were officers in 2013, having officers is one requirement for combatant status under the laws of war, though these officers need not have obtained an official commission or warrant. Commissioned officers are typically the only persons, in an armed forces environment, a superior officer is an officer with a higher rank than another officer, who is a subordinate officer relative to the superior. Non-commissioned officers in positions of authority can be said to have control or charge rather than command per se, many advanced militaries require university degrees as a prerequisite for commissioning, even from the enlisted ranks. In the Israel Defense Forces, a university degree is a requirement for an officer to advance to the rank of lieutenant colonel, the IDF often sponsors the studies for its majors, while aircrew and naval officers obtain academic degrees as a part of their training programmes. In the United Kingdom, there are three routes of entry for British Armed Forces officers, the first, and primary route are those who receive their commission directly into the officer grades following completion at their relevant military academy. The third route is similar to the second, in that they convert from an enlisted to a commission, but these are taken from the highest ranks of SNCOs. LE officers, whilst holding the same Queens Commission, generally work in different roles from the DE officers, in the infantry, a number of Warrant Officer Class 1s are commissioned as LE officers. For Royal Navy and Royal Air Force officer candidates, a 30-week period at Britannia Royal Naval College or a 30-week period at RAF College Cranwell, Royal Marines officers receive their training in the Command Wing of the Commando Training Centre Royal Marines during a grueling 15-month course. The courses consist of not only tactical and combat training, but also leadership, management, etiquette, until the Cardwell Reforms of 1871, commissions in the British Army were purchased by officers. The Royal Navy, however, operated on a more meritocratic, or at least socially mobile, AOCS also also included the embedded Aviation Reserve Officer Candidate and Naval Aviation Cadet programs. NAVCADs were personnel who held associates degrees, but lacked bachelors degrees, nAVCADs would complete the entire AOCS program, but would not be commissioned until completion of flight training and receiving their wings. After their initial tour, they would be assigned to a college or university full-time for no more than two years in order to complete their bachelors degree
25.
Enlisted man
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An enlisted rank is, in some armed services, any rank below that of a commissioned officer. In most cases, enlisted service personnel perform jobs specific to their own occupational specialty, the term enlistment refers solely to a military commitment whereas the terms taken of strength and struck off strength refer to a servicemember being carried on a given units roll. In the Canadian Forces, the term non-commissioned member is used, for the ranks used by the North Atlantic Treaty Organization, non-commissioned ranks are coded OR1–OR9, OR being an abbreviation for Other Ranks. The five branches of the U. S, armed Forces all use the same E- designation for enlisted pay grades, with service-specific names applied to each. Each branch incorporates it as part of a service members job specialty designator
26.
Bofors 40 mm gun
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The Bofors 40 mm gun, often referred to simply as the Bofors gun, is an anti-aircraft/multi-purpose autocannon designed in the 1930s by the Swedish arms manufacturer AB Bofors. It was one of the most popular medium-weight anti-aircraft systems during World War II, a small number of these weapons remain in service to this day, and saw action as late as the Gulf War. In the post-war era the original design was not suitable for action against jet powered aircraft, so Bofors introduced a new model of more power. In spite of sharing almost nothing with the design other than the calibre and the distinctive conical flash hider. Although not as popular as the original L/60 model, the L/70 remains in service to this day, especially as a weapon for light armored vehicles. Bofors itself has been part of BAE Systems AB since March 2005, the Swedish Navy purchased a number of 2 pounder Pom-Poms from Vickers as anti-aircraft guns in 1922. The Navy approached Bofors about the development of a capable replacement. Bofors signed a contract in late 1928, Bofors produced a gun that was a smaller version of a 57 mm semi-automatic gun developed as an anti-torpedo boat weapon in the late 19th century by Finspong. Their first test gun was a re-barreled Nordenfelt version of the Finspong gun, testing of this gun in 1929 demonstrated that a problem existed feeding the weapon in order to maintain a reasonable rate of fire. A mechanism that was enough to handle the stresses of moving the large round was too heavy to move quickly enough to fire rapidly. One attempt to solve this problem used zinc shell cases that burned up when fired and this proved to leave heavy zinc deposits in the barrel, and had to be abandoned. This seemed to be the solution they needed, improving firing rates to a level. During this period Krupp purchased a share of Bofors. Krupp engineers started the process of updating the Bofors factories to use equipment and metallurgy. The prototype was completed and fired in November 1931, and by the middle of the month it was firing strings of two and three rounds. Changes to the mechanism were all that remained, and by the end of the year it was operating at 130 rounds per minute. Continued development was needed to turn it into a suitable for production. Since acceptance trials had been passed the year before, this known as the 40 mm akan M/32
27.
Oerlikon 20 mm cannon
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The Oerlikon 20 mm cannon is a series of autocannons, based on an original German 20 mm Becker design that appeared very early in World War I. It was widely produced by Oerlikon Contraves and others, with various models employed by both Allied and Axis forces during World War II, and many still in use today. During World War I, the German Reinhold Becker developed a 20 mm caliber cannon and this used a 20x70 RB cartridge and had a cyclic rate of fire of 300 rpm. It was used on a scale as an aircraft gun on Luftstreitkräfte warplanes. Because the Treaty of Versailles banned further production of weapons in Germany. SEMAG continued development of the weapon, and in 1924 had produced the SEMAG L, the Oerlikon firm, named after the Zürich suburb where it was based, then acquired all rights to the weapon, plus the manufacturing equipment and the employees of SEMAG. In 1927 the Oerlikon S was added to the product line. This fired a larger cartridge to achieve a muzzle velocity of 830 m/s, at the cost of increased weight. The purpose of development was to improve the performance of the gun as an anti-tank and anti-aircraft weapon. An improved version known as the 1S followed in 1930, three sizes of gun with their different ammunition and barrel length, but very similar mechanisms, continued to be developed in parallel. In 1930 Oerlikon reconsidered the application of its gun in aircraft and introduced the AF and AL, designed to be used in flexible mounts, the 15-round box magazine used by earlier versions of the gun was replaced by drum magazine holding 15 or 30 rounds. In 1935 it made an important step by introducing a series of guns designed to be mounted in or on the wings of fighter aircraft, designated with FF for Flügelfest meaning wing-mounted, these weapons were again available in the three sizes, with designations FF, FFL and FFS. The FF fired a larger cartridge than the AF, 20x72RB. The FF weighed 24 kg and achieved a velocity of 550 to 600 m/s with a rate of fire of 520 rpm. The FFL of 30 kg fired a projectile at a velocity of 675 m/s with a rate of fire of 500 rpm. And the FFS, which weighed 39 kg, delivered a high velocity of 830 m/s at a rate of fire of 470 rpm. Apart from changes to the design of the guns for wing-mounting and remote control, for the FF series drum sizes of 45,60,75 and 100 rounds were available, but most users chose the 60-round drum. The 1930s were a period of global re-armament, and a number of foreign firms took licenses for the Oerlikon family of aircraft cannon
28.
Normandy landings
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The Normandy landings were the landing operations on Tuesday,6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. The largest seaborne invasion in history, the operation began the liberation of German-occupied northwestern Europe from Nazi control, planning for the operation began in 1943. Adolf Hitler placed German Field Marshal Erwin Rommel in command of German forces, the amphibious landings were preceded by extensive aerial and naval bombardment and an airborne assault—the landing of 24,000 American, British, and Canadian airborne troops shortly after midnight. Allied infantry and armoured divisions began landing on the coast of France at 06,30, the target 50-mile stretch of the Normandy coast was divided into five sectors, Utah, Omaha, Gold, Juno, and Sword. Strong winds blew the landing craft east of their positions, particularly at Utah. Casualties were heaviest at Omaha, with its high cliffs, at Gold, Juno, and Sword, several fortified towns were cleared in house-to-house fighting, and two major gun emplacements at Gold were disabled, using specialised tanks. The Allies failed to any of their goals on the first day. Carentan, St. Lô, and Bayeux remained in German hands, and Caen, German casualties on D-Day have been estimated at 4,000 to 9,000 men. Allied casualties were at least 10,000, with 4,414 confirmed dead, museums, memorials, and war cemeteries in the area now host many visitors each year. Between 27 May and 4 June 1940, over 338,000 troops of the British Expeditionary Force, after the German Army invaded the Soviet Union in June 1941, the Soviet leader Joseph Stalin began pressing his allies for the creation of a second front in western Europe. In late May 1942 the Soviet Union and the United States made a joint announcement that a. full understanding was reached with regard to the urgent tasks of creating a front in Europe in 1942. Instead of a return to France, the Western Allies staged offensives in the Mediterranean Theatre of Operations. By mid-1943 the campaign in North Africa had been won, the Allies then launched the invasion of Sicily in July 1943, and subsequently invaded Italy in September the same year. By then, Soviet forces were on the offensive and had won a victory at the Battle of Stalingrad. The decision to undertake a cross-channel invasion within the year was taken at the Trident Conference in Washington in May 1943. Initial planning was constrained by the number of landing craft, most of which were already committed in the Mediterranean. At the Tehran Conference in November 1943, Roosevelt and Churchill promised Stalin that they would open the second front in May 1944. Four sites were considered for the landings, Brittany, the Cotentin Peninsula, Normandy, as Brittany and Cotentin are peninsulas, it would have been possible for the Germans to cut off the Allied advance at a relatively narrow isthmus, so these sites were rejected
29.
American Campaign Medal
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The American Campaign Medal is a military award of the United States Armed Forces which was first created on November 6,1942 by Executive Order 9265 issued by President Franklin D. Roosevelt. The medal was intended to recognize those military members who had performed military service in the American Theater of Operations during World War II. A similar medal, known as the American Defense Service Medal was awarded for active duty prior to the United States entry into World War II. The American Campaign Medal was established per Executive Order 9265,6 November 1942, by President Franklin D. Roosevelt and announced in War Department Bulletin 56,1942. The criteria was initially announced in Department of the Army Circular 1, dated 1 January 1943, the criteria for the medal was announced in DA Circular 84, dated 25 March 1948 and subsequently published in Army Regulation 600-65, dated 22 September 1948. The American Campaign Medal was issued as a ribbon only during the Second World War. The first recipient of the American Campaign Medal was General of the Army George C, marshall, Jr. Permanently assigned as a member of a crew of a vessel sailing ocean waters for a period of 30 consecutive days or 60 nonconsecutive days. Outside the continental limits of the United States in a status or on temporary duty for 30 consecutive days or 60 nonconsecutive days. Within the continental limits of the United States for a period of 1 year. The medal, made of bronze, is 1 1/4 inches wide, the obverse was designed by Thomas Hudson Jones. It shows a Navy cruiser underway with a B-24 Liberator bomber flying overhead, in the foreground is a sinking enemy submarine, and in the background is the skyline of a city. At the top of the medal are the words AMERICAN CAMPAIGN and it depicts an American bald eagle between the dates 1941 -1945 and the words UNITED STATES OF AMERICA. The ribbon is 1 3/8 inches wide in oriental blue in the center is a 1/8 inch center stripe divided into thirds of old glory blue, white, between the center and the edges are stripes of 1/16 inch in white, black, scarlet and white. 3/16 inch service stars were authorized to service members who participated in combat with Axis forces within the American Theater and this primarily applied to those service members whose units participated in anti-U-Boat patrols in the Atlantic. To qualify individuals must have been assigned to or attached to, and present for duty with, a complete guide to all United States military medals,1939 to present. Robles, Philip K. United States military medals and ribbons
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World War II Victory Medal (United States)
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The World War II Victory Medal was first issued as a service ribbon referred to as the “Victory Ribbon. ”By 1946, a full medal had been established which was referred to as the World War II Victory Medal. The corresponding medal from the World War I is the World War I Victory Medal, on 8 August 1946, the separate Merchant Marine World War II Victory Medal was established for members of the United States Merchant Marine who served during World War II. The medal is awarded for service between 7 December 1941 and 31 December 1946, both dates inclusive, the National Personnel Records Center has reported some cases of service members receiving the award for simply a few days of service. As the Second World War ended on 2 September 1945, there may be cases of members who had enlisted, entered officer candidate school. Military Academy, the U. S. Naval Academy or the U. S. Coast Guard Academy in 1946, the reason for this late date is that President Harry S. Truman did not declare an official end of hostilities until the last day of 1946. The bronze medal is 1 3⁄8 inches in width, the rainbow on each side of the ribbon is a miniature of the pattern used in the World War I Victory Medal. Although the World War I Victory Medal included clasps, the World War II Victory Medal did not and this was because campaign medals were frequently awarded instead. Awards and decorations of the United States military Merchant Marine World War II Victory Medal United States Statutes at Large, washington, DC, Office of the Federal Register. Washington, DC, Office of the Federal Register, navPers 15,790, Navy and Marine Corps Awards Manual. Washington, DC, Department of the Navy, mIL-DTL-3943/237A, Detail Specification Sheet — Medal, World War II Victory. MIL-DTL-11589/149E, Detail Specification Sheet — Ribbon, World War II Victory Medal, fort Belvoir, Virginia, The Institute of Heraldry, U. S. Army. Archived from the original on September 9,2009
31.
United States Navy
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The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U. S. Navy is the largest, most capable navy in the world, the U. S. Navy has the worlds largest aircraft carrier fleet, with ten in service, two in the reserve fleet, and three new carriers under construction. The service has 323,792 personnel on duty and 108,515 in the Navy Reserve. It has 274 deployable combat vessels and more than 3,700 operational aircraft as of October 2016, the U. S. Navy traces its origins to the Continental Navy, which was established during the American Revolutionary War and was effectively disbanded as a separate entity shortly thereafter. It played a role in the American Civil War by blockading the Confederacy. It played the role in the World War II defeat of Imperial Japan. The 21st century U. S. Navy maintains a global presence, deploying in strength in such areas as the Western Pacific, the Mediterranean. The Navy is administratively managed by the Department of the Navy, the Department of the Navy is itself a division of the Department of Defense, which is headed by the Secretary of Defense. The Chief of Naval Operations is an admiral and the senior naval officer of the Department of the Navy. The CNO may not be the highest ranking officer in the armed forces if the Chairman or the Vice Chairman of the Joint Chiefs of Staff. The mission of the Navy is to maintain, train and equip combat-ready Naval forces capable of winning wars, deterring aggression, the United States Navy is a seaborne branch of the military of the United States. The Navys three primary areas of responsibility, The preparation of naval forces necessary for the prosecution of war. The development of aircraft, weapons, tactics, technique, organization, U. S. Navy training manuals state that the mission of the U. S. Armed Forces is to prepare and conduct prompt and sustained combat operations in support of the national interest, as part of that establishment, the U. S. Navys functions comprise sea control, power projection and nuclear deterrence, in addition to sealift duties. It follows then as certain as that night succeeds the day, that without a decisive naval force we can do nothing definitive, the Navy was rooted in the colonial seafaring tradition, which produced a large community of sailors, captains, and shipbuilders. In the early stages of the American Revolutionary War, Massachusetts had its own Massachusetts Naval Militia, the establishment of a national navy was an issue of debate among the members of the Second Continental Congress. Supporters argued that a navy would protect shipping, defend the coast, detractors countered that challenging the British Royal Navy, then the worlds preeminent naval power, was a foolish undertaking. Commander in Chief George Washington resolved the debate when he commissioned the ocean-going schooner USS Hannah to interdict British merchant ships, and reported the captures to the Congress
32.
Europe-Africa-Middle East Theater
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The United States Army conducted many campaigns during World War II. These are the campaigns that were designated by the Army. In all,44 World War II campaigns were designated by the U. S. Army,24 for the Asiatic–Pacific Theater,19 in the European–African–Middle Eastern Theater, in addition, there were three main blanket campaigns, antisubmarine warfare, ground combat and air combat. These were designated for each theater, except the American Theater and these three theaters each had its own campaign ribbon. The list of campaigns includes those undertaken by U. S. Army units participating in combat as well as those undertaken by United States Army Air Forces participating in air combat. The war started for America on 7 December 1941 with the Japanese attack on Pearl Harbor, and the invasion of the Philippines, hard-fought campaigns in Papua and Guadalcanal followed in 1942. In 1943, the Japanese were driven from the Aleutian Islands, and U. S. forces landed in the northern Solomon Islands, the Gilbert Islands, and the Bismarck Archipelago. This was followed in 1944 by the invasion of the Marshall Islands, a series of landings in western New Guinea, the U. S. Army returned to the Philippines in October 1944, waging major campaigns on Luzon and the southern Philippines through 1945. U. S. forces landed on Okinawa and in April 1945. While U. S. support for China was a reason for the war, in response to U. S. Army Air Forces operations from China, the Japanese drove the Americans and Chinese from eastern China. Only in the last weeks of the war did the tide turn in favor of the Allies in China. Although many campaigns were fought in Asia and the Pacific, the focus of the U. S. Army was always on the European Theater. U. S. forces saw action in the invasion of North Africa in November 1942, the U. S. Army participated in the Allied invasion of Sicily in July 1943, and then the Allied invasion of Italy in September. In June 1944, the U. S. Army participated in Operation Overlord, after heavy fighting, the Allies broke out of Normandy in July 1944. Efforts to capture the ports in Brittany proved difficult, but Allied forces quickly liberated Belgium and much of France. In December 1944, the U. S. Army was surprised by the German Ardennes offensive, in February 1945, operations began that drove the Germans from the Rhineland, and the Rhine was crossed in March 1945. In April 1945, U. S. Army forces entered the heartland of Germany, operations continued until the war in Europe ended on 8 May 1945 with the signing of unconditional surrender the previous day. Center of Military History, United States Army, a Brief History of the U. S. Army in World War II, The U. S. Army Campaigns of World War II
33.
World War II
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World War II, also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the worlds countries—including all of the great powers—eventually forming two opposing alliances, the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. Marked by mass deaths of civilians, including the Holocaust and the bombing of industrial and population centres. These made World War II the deadliest conflict in human history, from late 1939 to early 1941, in a series of campaigns and treaties, Germany conquered or controlled much of continental Europe, and formed the Axis alliance with Italy and Japan. Under the Molotov–Ribbentrop Pact of August 1939, Germany and the Soviet Union partitioned and annexed territories of their European neighbours, Poland, Finland, Romania and the Baltic states. In December 1941, Japan attacked the United States and European colonies in the Pacific Ocean, and quickly conquered much of the Western Pacific. The Axis advance halted in 1942 when Japan lost the critical Battle of Midway, near Hawaii, in 1944, the Western Allies invaded German-occupied France, while the Soviet Union regained all of its territorial losses and invaded Germany and its allies. During 1944 and 1945 the Japanese suffered major reverses in mainland Asia in South Central China and Burma, while the Allies crippled the Japanese Navy, thus ended the war in Asia, cementing the total victory of the Allies. World War II altered the political alignment and social structure of the world, the United Nations was established to foster international co-operation and prevent future conflicts. The victorious great powers—the United States, the Soviet Union, China, the United Kingdom, the Soviet Union and the United States emerged as rival superpowers, setting the stage for the Cold War, which lasted for the next 46 years. Meanwhile, the influence of European great powers waned, while the decolonisation of Asia, most countries whose industries had been damaged moved towards economic recovery. Political integration, especially in Europe, emerged as an effort to end pre-war enmities, the start of the war in Europe is generally held to be 1 September 1939, beginning with the German invasion of Poland, Britain and France declared war on Germany two days later. The dates for the beginning of war in the Pacific include the start of the Second Sino-Japanese War on 7 July 1937, or even the Japanese invasion of Manchuria on 19 September 1931. Others follow the British historian A. J. P. Taylor, who held that the Sino-Japanese War and war in Europe and its colonies occurred simultaneously and this article uses the conventional dating. Other starting dates sometimes used for World War II include the Italian invasion of Abyssinia on 3 October 1935. The British historian Antony Beevor views the beginning of World War II as the Battles of Khalkhin Gol fought between Japan and the forces of Mongolia and the Soviet Union from May to September 1939, the exact date of the wars end is also not universally agreed upon. It was generally accepted at the time that the war ended with the armistice of 14 August 1945, rather than the formal surrender of Japan
34.
Ceremonial ship launching
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Ceremonial ship launching is the process of transferring a vessel to the water. It is a tradition in many cultures, dating back thousands of years. It has been observed as a celebration and a solemn blessing. The process also involves many traditions intended to invite good luck, such as christening by breaking a bottle of champagne over the bow as the ship is named aloud. There are three methods of conveying a new ship from building site to water, only two of which are called launching. The oldest, most familiar, and most widely used is the launch, in which the vessel slides down an inclined slipway. With the side launch, the ship enters the water broadside and this method came into use in the 19th-century on inland waters, rivers, and lakes, and was more widely adopted during World War II. The third method is float-out, used for ships that are built in basins or dry docks and then floated by admitting water into the dock. In all cases, heavy chains are attached to the ship, normally, ways are arranged perpendicular to the shore line and the ship is built with its stern facing the water. The barricades support the two launch ways, the vessel is built upon temporary cribbing that is arranged to give access to the hulls outer bottom and to allow the launchways to be erected under the complete hull. When it is time to prepare for launching, a pair of standing ways is erected under the hull, the surface of the ways is greased. A pair of sliding ways is placed on top, under the hull, the weight of the hull is then transferred from the build cribbing onto the launch cradle. On launching, the vessel slides backwards down the slipway on the ways until it floats by itself, some slipways are built so that the vessel is side-on to the water and is launched sideways. This is done where the limitations of the channel would not allow lengthwise launching. The Great Eastern designed by Brunel was built this way as were many landing craft during World War II and this method requires many more sets of ways to support the weight of the ship. Sometimes ships are launched using a series of inflated tubes underneath the hull and this procedure has the advantages of requiring less permanent infrastructure, risk, and cost. The airbags provide support to the hull of the ship and aid its launching motion into the water and these airbags are usually cylindrical in shape with hemispherical heads at both ends. The Xiao Qinghe shipyard launched a tank barge with marine airbags on January 20,1981, egyptians, Greeks, and Romans called on their gods to protect seamen
35.
Ship commissioning
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Ship commissioning is the act or ceremony of placing a ship in active service, and may be regarded as a particular application of the general concepts and practices of project commissioning. The term is most commonly applied to the placing of a warship in active duty with its countrys military forces, the ceremonies involved are often rooted in centuries old naval tradition. Ship naming and launching endow a ship hull with her identity, the engineering plant, weapon and electronic systems, galley, and multitudinous other equipment required to transform the new hull into an operating and habitable warship are installed and tested. The prospective commanding officer, ships officers, the petty officers, prior to commissioning, the new ship undergoes sea trials to identify any deficiencies needing correction. USS Monitor, of American Civil War fame, was commissioned less than three weeks after launch, regardless of the type of ship in question, a vessels journey towards commissioning in its nations navy begins with process known as sea trials. Sea trials begin when the ship in question is floated out of its dry dock, after a ship has successfully cleared its sea trial period, it will officially be accepted into service with its nations navy. At this point, the ship in question will undergo a process of degaussing and/or deperming, once a ships sea trials are successfully completed plans for the actual commissioning ceremony will take shape. If the ships ceremony is an affair the Captain may make a speech to the audience. Religious ceremonies, such as blessing the ship or the singing of hymns or songs. Once a ship has been commissioned its final step toward becoming a unit of the navy it now serves is to report to its home port. To decommission a ship is to terminate its career in service in the forces of a nation. Decommissioning of the vessel may also occur due to treaty agreements or for safety reasons, vessels preserved in this manner typically do not relinquish their names to other, more modern ships that may be in the design, planning, or construction phase of the parent nations navy. Prior to its decommissioning, the ship in question will begin the process of decommissioning by going through a preliminary step called inactivation or deactivation. The removed material from a ship usually ends up either rotating to another ship in the class with similar weapons and/or capabilities, or in storage pending a decision on equipments fate. During this time a crew may be thinned out via transfers. When a ship finishes its inactivation, it is then formally decommissioned, often, but not always, ships that are decommissioned end up spending the next few years in a reserve fleet before their ultimate fate is decided. Commissioning in the early United States Navy under sail was attended by no ceremony, thus, the ship was placed in commission. Commissionings were not public affairs, and unlike christening-and-launching ceremonies, were not recorded by newspapers, the first specific reference to commissioning located in naval records is a letter of November 6,1863, from Secretary of the Navy Gideon Welles to all navy yards and stations
36.
Lieutenant (navy)
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Lieutenant is a commissioned officer rank in many nations navies. It is typically the most senior of junior officer ranks, the ranks insignia usually consists of two medium gold braid stripes and often the uppermost stripe features a loop or executive curl. The now immediately senior rank of lieutenant commander was formerly a naval lieutenant rank. Many navies also use a rank of sub-lieutenant. The appointment of first lieutenant in many navies is held by a senior lieutenant, a navy lieutenant ranks higher than an army lieutenant, the navy rank of lieutenant is a NATO OF-2 and ranks with an army captain. From at least 1580, the lieutenant on a ship had been the officer immediately subordinate to the captain, before the English Restoration, lieutenants were appointed by their captains, and this inevitably led to abuses and to the widespread appointment of men of insufficient qualification. In 1677, Samuel Pepys introduced the first examination for lieutenant, lieutenants were numbered by their seniority within the ship, so that a frigate would have a first lieutenant, a second lieutenant, and a third lieutenant. A first-rate ship was entitled to six, and they were numbered accordingly, as the rank structure of navies stabilised, and the ranks of commander, lieutenant commander and sub-lieutenant were introduced, the naval lieutenant today ranks with an army captain. In the United States Navy, promotion to lieutenant is governed by Department of Defense policies derived from the Defense Officer Personnel Management Act of 1980, DOPMA guidelines suggest 95% of lieutenants should be promoted to lieutenant after serving a minimum of two years at their present rank. The insignia of a lieutenant in many navies, including the Royal Navy and this pattern was copied by the United States Navy and various air forces for their equivalent ranks grades, except that the loop is removed. The first lieutenant in the Royal Navy and other Commonwealth navies, is a post or appointment, historically, the lieutenants in a ship were ranked in accordance with seniority, with the most senior being termed the first lieutenant and acting as the second-in-command. Although lieutenants are no longer numbered by seniority, the post of first lieutenant remains, the post of first lieutenant in a shore establishment carries a similar responsibility to that of the first lieutenant of a capital ship. In the US Navy or US Coast Guard, the billet of first lieutenant describes the officer in charge of the department or division. On submarines and smaller Coast Guard cutters, the billet of first lieutenant may be filled by a petty officer
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United States Navy Reserve
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The United States Navy Reserve, known as the United States Naval Reserve from 1915 to 2005, is the Reserve Component of the United States Navy. Members of the Navy Reserve, called Reservists, are enrolled in the Selected Reserve, the Individual Ready Reserve, the size of these centers varies greatly, depending on the number of assigned. They are intended mostly to administrative functions and classroom style training. However, some NOSCs have more training facilities, including damage control trainers. Because of this, NOSCs outside the concentration areas are also heavily tasked to provide personnel. This service provided to the community is one of the NOSCs top two priority missions. FTS, previously known as TAR, serve in all year round and provide administrative support to SELRES. Army Reserve and the Army National Guard, the IRR do not typically drill or train regularly, but can be recalled to service in a full mobilization. These personnel will drill for points but no pay and are not eligible for Annual Training with pay, however, they remain eligible for other forms of active duty with pay and mobilization. Reservists are called to duty, or mobilized, as needed and are required to sign paperwork acknowledging this possibility upon enrollment in the reserve program. After the September 11 attacks of 2001, Reservists were mobilized to combat operations. The War on Terrorism has even seen the activation of a Reserve squadron, the VFA-201 Hunters, flying F/A-18 Hornet aircraft, which deployed on board the USS Theodore Roosevelt. Additionally, more than 52,000 Navy Reservists have been mobilized and deployed to serve in Iraq and Afghanistan, the Reserve consists of 108,718 officers and enlisted personnel who serve in every state and territory as well as overseas as of September 2012. S. Following the American Revolution, the expense of maintaining a navy was deemed too great. However, attacks by Barbary pirates against American merchant vessels in the Mediterranean Sea prompted a change in course in 1794, a navy that helped give birth to the nation was now deemed essential to preserving its security, which faced its most serious threat during the War of 1812. Though overwhelmed by a superior in numbers, these men, most recruited from Baltimore, continued to wage war on land, joining in the defense of Washington. Having fought against a power, naval reservists faced a much different struggle with the outbreak of the Civil War, which divided a navy. By wars end the Navy had grown from a force numbering 9,942 in 1860 to one manned by 58,296 sailors, the latter action resulted in the awarding of the Medal of Honor to six reserve enlisted men
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Oran
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Oran is an important coastal city that is located in the north-west of Algeria. It is considered the second most important city after the capital Algiers, due to its commercial, industrial and it is 432 km from Algiers. The total population of the city was 759,645 in 2008, the name Wahran is derived from the Berber word uharan that means two lions. A legend says that in 900 AD, lions still lived in the area, the last two lions were hunted on a mountain near Oran and are elsewhere referred to as mountain lions. During the Roman empire, a settlement called Unica Colonia existed in the area of current Oran. Present-day Oran was founded in 903 by Moorish Andalusi traders and it was captured by the Castilians under Cardinal Cisneros in 1509, and Spanish sovereignty lasted until 1708, when the city was conquered by the Ottomans. Spain recaptured the city in 1732, however, its value as a trading post had decreased greatly, so King Charles IV sold the city to the Turks in 1792. Ottoman rule lasted until 1831, when it fell to the French, during French rule over Algeria during the 19th and 20th centuries, Oran was the capital of a département of the same name. The action increased the hatred of the Vichy regime for Britain but convinced the world that the British would fight on alone against Nazi Germany, the Vichy government held Oran during World War II until its capture by the Allies in late 1942, during Operation Torch. Also, during French rule, Jews were encouraged to modernize, Jews In the city were allowed to join the French Army starting October 24,1870 when Algerian Jews were granted citizenship. French Jews would soon be targeted after not choosing to side with the Algerian Muslims who fought for independence against France, before the Algerian War, 1954–1962, Oran had one of the highest proportions of Europeans of any city in North Africa. In July 1962, after a ceasefire and accords with France, a mob attacked pied-noir neighborhoods and massacred thousands of Europeans in Oran,453 have been said to have disappeared. This triggered an exodus of Europeans to France, which was already underway. Shortly after the end of the war, most of the Europeans, in less than three months, Oran lost about half its population. This population lost is similar to the Jews as many fled after siding with France in the Algerian War for Independence, as the war progressed, those who supported independence in Algeria threatened those who sided with Europe causing these people to flee. Before the Spaniards, the Portuguese launched an expedition to capture the city in July 1501. Four years later, the Spanish took Mers-el-Kébir, located just four miles to the west of the Oran, thus began the first organized incursions against the city which, at the time, numbered 25,000 inhabitants and counted 6,000 fueros. Count Pedro Navarro, on the orders of Cardinal Francisco Jiménez de Cisneros, the occupying forces set fire to the books and archives of the town
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Gibraltar
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Gibraltar is a British Overseas Territory located on the southern end of the Iberian Peninsula. It has an area of 6.7 km2 and shares its border with Spain. The Rock of Gibraltar is the landmark of the region. At its foot is a populated city area, home to over 30,000 Gibraltarians. An Anglo-Dutch force captured Gibraltar from Spain in 1704 during the War of the Spanish Succession on behalf of the Habsburg claim to the Spanish throne, the territory was subsequently ceded to Great Britain in perpetuity under the Treaty of Utrecht in 1713. Today Gibraltars economy is based largely on tourism, online gambling, financial services, the sovereignty of Gibraltar is a major point of contention in Anglo-Spanish relations as Spain asserts a claim to the territory. Gibraltarians overwhelmingly rejected proposals for Spanish sovereignty in a 1967 referendum, under the Gibraltar constitution of 2006, Gibraltar governs its own affairs, though some powers, such as defence and foreign relations, remain the responsibility of the British government. The name Gibraltar is the Spanish derivation of the Arabic name Jabal Ṭāriq, earlier, it was known as Mons Calpe, a name of Phoenician origin and one of the Pillars of Hercules. The pronunciation of the name in modern Spanish is, evidence of Neanderthal habitation in Gibraltar between 28,000 and 24,000 BP has been discovered at Gorhams Cave, making Gibraltar possibly the last known holdout of the Neanderthals. Within recorded history, the first inhabitants were the Phoenicians, around 950 BC, subsequently, Gibraltar became known as one of the Pillars of Hercules, after the Greek legend of the creation of the Strait of Gibraltar by Heracles. The Carthaginians and Romans also established semi-permanent settlements, after the collapse of the Roman Empire, Gibraltar came briefly under the control of the Vandals. The area later formed part of the Visigothic Kingdom of Hispania from 414 AD until the Islamic conquest of Iberia in 711 AD, in 1160, the Almohad Sultan Abd al-Mumin ordered that a permanent settlement, including a castle, be built. It received the name of Medinat al-Fath, on completion of the works in the town, the Sultan crossed the Strait to look at the works and stayed in Gibraltar for two months. The Tower of Homage of the Moorish Castle remains standing today, from 1274 onwards, the town was fought over and captured by the Nasrids of Granada, the Marinids of Morocco and the kings of Castile. In 1462, Gibraltar was finally captured by Juan Alonso de Guzmán, after the conquest, King Henry IV of Castile assumed the additional title of King of Gibraltar, establishing it as part of the comarca of the Campo Llano de Gibraltar. In 1501, Gibraltar passed back to the Spanish Crown, the occupation of the town by Alliance forces caused the exodus of the population to the surrounding area of the Campo de Gibraltar. As the Alliances campaign faltered, the 1713 Treaty of Utrecht was negotiated and ceded control of Gibraltar to Britain to secure Britains withdrawal from the war. Unsuccessful attempts by Spanish monarchs to regain Gibraltar were made with the siege of 1727 and again with the Great Siege of Gibraltar, during the American War of Independence
40.
Liverpool
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Liverpool is a major city and metropolitan borough in North West England.24 million people in 2011. Liverpool historically lay within the ancient hundred of West Derby in the south west of the county of Lancashire and it became a borough from 1207 and a city from 1880. In 1889 it became a county borough independent of Lancashire, Liverpool sits on the eastern side of the Mersey Estuary and its growth as a major port is paralleled by the expansion of the city throughout the Industrial Revolution. Along with general cargo, freight, raw materials such as coal and cotton, the city was also directly involved in the Atlantic slave trade. Liverpool was home to both the Cunard and White Star Line, and was the port of registry of the ocean liner RMS Titanic and others such as the RMS Lusitania, Queen Mary, and Olympic. The city celebrated its 800th anniversary in 2007, and it held the European Capital of Culture title together with Stavanger, Norway, several areas of Liverpool city centre were granted World Heritage Site status by UNESCO in 2004. The Liverpool Maritime Mercantile City includes the Pier Head, Albert Dock, tourism forms a significant part of the citys economy. Liverpool is also the home of two Premier League football clubs, Liverpool and Everton, matches between the two being known as the Merseyside derby, the world-famous Grand National horse race takes place annually at Aintree Racecourse on the outskirts of the city. The city is home to the oldest Black African community in the country. Natives of Liverpool are referred to as Liverpudlians and colloquially as Scousers, a reference to scouse, the word Scouse has also become synonymous with the Liverpool accent and dialect. Pool is a place name element in England from the Brythonic word for a pond, inlet, or pit, cognate with the modern Welsh. The derivation of the first element remains uncertain, with the Welsh word Llif as the most plausible relative and this etymology is supported by its similarity to that of the archaic Welsh name for Liverpool Llynlleifiad. Other origins of the name have suggested, including elverpool. The name appeared in 1190 as Liuerpul, and it may be that the place appearing as Leyrpole, in a record of 1418. King Johns letters patent of 1207 announced the foundation of the borough of Liverpool, the original street plan of Liverpool is said to have been designed by King John near the same time it was granted a royal charter, making it a borough. The original seven streets were laid out in an H shape, Bank Street, Castle Street, Chapel Street, Dale Street, Juggler Street, Moor Street, in the 17th century there was slow progress in trade and population growth. Battles for the town were waged during the English Civil War, in 1699 Liverpool was made a parish by Act of Parliament, that same year its first slave ship, Liverpool Merchant, set sail for Africa. Since Roman times, the city of Chester on the River Dee had been the regions principal port on the Irish Sea
41.
Invasion of Normandy
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The Western Allies of World War II launched the largest amphibious invasion in history when they assaulted Normandy, located on the northern coast of France, on 6 June 1944. The invaders were able to establish a beachhead as part of Operation Overlord after a successful D-Day, Allied land forces came from the United States, Britain, Canada, and Free French forces. The Normandy invasion began with overnight parachute and glider landings, massive air attacks, the invasion began and during the evening the remaining elements of the airborne divisions landed. Land forces used on D-Day sailed from bases along the south coast of England, Allied forces rehearsed their D-Day roles for months before the invasion. On 28 April 1944, in south Devon on the English coast,749 U. S. soldiers and sailors were killed when German torpedo boats surprised one of these landing exercises, Exercise Tiger. In the months leading up to the invasion, the Allied forces conducted an operation, Operation Fortitude, aimed at misleading the Germans with respect to the date. There were several leaks prior to or on D-Day, through the Cicero affair, the Germans obtained documents containing references to Overlord, but these documents lacked all detail. Double Cross agents, such as the Spaniard Juan Pujol, played an important role in convincing the German High Command that Normandy was at best a diversionary attack. After being told, Eisenhower reduced Miller to lieutenant colonel and sent him back to the U. S. where he retired, another such leak was General Charles de Gaulles radio message after D-Day. He, unlike all the leaders, stated that this invasion was the real invasion. This had the potential to ruin the Allied deceptions Fortitude North, in contrast, Gen. Eisenhower referred to the landings as the initial invasion. A full moon occurred on 6 June, Allied Expeditionary Force Supreme Commander Dwight D. Eisenhower had tentatively selected 5 June as the date for the assault. The weather was fine during most of May, but deteriorated in early June, the Allied troop convoys already at sea were forced to take shelter in bays and inlets on the south coast of Britain for the night. It seemed possible that everything would have to be cancelled and the returned to their embarkation camps. The next full moon period would be nearly a month away, at a vital meeting on 5 June, Eisenhowers chief meteorologist forecast a brief improvement for 6 June. Commander of all forces for the invasion General Bernard Montgomery. Commander of the Allied Air Forces Air Chief Marshal Leigh Mallory was doubtful, on the strength of Staggs forecast, Eisenhower ordered the invasion to proceed. As a result, prevailing overcast skies limited Allied air support, some troops stood down and many senior officers were away for the weekend
42.
St Helens Fort
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St Helens Fort is a sea fort in the Solent close to the Isle of Wight, one of the Palmerston Forts near Portsmouth. It was built between 1867 and 1880 as a result of the Royal Commission to protect the St Helens anchorage. It suffered badly from subsidence which forced changes to the plans. The fort is now in hands and not open to the public. It was offered for sale in 2003, any private resident would not have access to local authority services, although it has its own artesian well. Periodically, on one of the lowest tides of the year, there is a walk from St Helens beach out to the fort. At this day the causeway appears from the sea upon which the materials were carried out from the shore at St Helens Old Church. Access is from this point, but also along the spit from Bembridge and it has become traditional to hold a barbecue on the beach thereafter. This event is entirely spontaneous but safety boat services are provided by local yacht clubs, the other sea forts, all larger, are Spitbank Fort, Horse Sand Fort and No Mans Land Fort. The Solent Forts- often known as Palmerstons Follies were built in response to a French invasion scare under Louis Napoleon III and this came to nothing with the defeat of France by Prussia in 1870-71. The forts were used for defence in the World Wars. Subsequently their main role has been as navigational lighthouses. Victorian Forts map of Portsmouth Defences
43.
Le Havre
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Le Havre is an urban French commune and city in the Seine-Maritime department in the Normandy region of northwestern France. It is situated on the bank of the estuary of the river Seine on the Channel southwest of the Pays de Caux. Modern Le Havre remains deeply influenced by its employment and maritime traditions and its port is the second largest in France, after that of Marseille, for total traffic, and the largest French container port. The name Le Havre means the harbour or the port and its inhabitants are known as Havrais or Havraises. Administratively the commune is located in the Normandy region and, with Dieppe, is one of the two sub-prefectures of the Seine-Maritime department, Le Havre is the capital of the canton and since 1974 has been the see of the diocese of Le Havre. Le Havre is the most populous commune of Upper Normandy, although the population of the greater Le Havre conurbation is smaller than that of Rouen. It is also the second largest subprefecture in France, the city and port were founded by the King Francis I of France in 1517. Economic development in the Early modern period was hampered by wars, conflicts with the English, epidemics. It was from the end of the 18th century that Le Havre started growing, after the 1944 bombings the firm of Auguste Perret began to rebuild the city in concrete. Changes in years 1990–2000 were numerous, the right won the municipal elections and committed the city to the path of reconversion, seeking to develop the service sector and new industries. The Port 2000 project increased the capacity to compete with ports of northern Europe, transformed the southern districts of the city. In 2005 UNESCO inscribed the city of Le Havre as a World Heritage Site. The André Malraux Modern Art Museum is the second of France for the number of impressionist paintings, the city has been awarded two flowers by the National Council of Towns and Villages in Bloom in the Competition of cities and villages in Bloom. Le Havre is a major French city located some 50 kilometres west of Rouen on the shore of the English Channel, numerous roads link to Le Havre with the main access roads being the A29 autoroute from Amiens and the A13 autoroute from Paris linking to the A131 autoroute. Administratively, Le Havre is a commune in the Haute-Normandie region in the west of the department of Seine-Maritime, the urban area of Le Havre corresponds roughly to the territory of the Agglomeration community of Le Havre which includes 17 communes and 250,000 people. It occupies the tip of the natural region of Pays de Caux where it is the largest city. Le Havre is sandwiched between the coast of the Channel from south-west to north-west and the estuary of the Seine to the south, Le Havre belongs to the MLG community Paris Basin which was formed in the Mesozoic period. The Paris Basin consists of sedimentary rocks, the commune of Le Havre consists of two areas separated by a natural cliff edge, one part in the lower part of the town to the south including the harbour, the city centre and the suburbs
44.
Public domain
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The term public domain has two senses of meaning. Anything published is out in the domain in the sense that it is available to the public. Once published, news and information in books is in the public domain, in the sense of intellectual property, works in the public domain are those whose exclusive intellectual property rights have expired, have been forfeited, or are inapplicable. Examples for works not covered by copyright which are therefore in the domain, are the formulae of Newtonian physics, cooking recipes. Examples for works actively dedicated into public domain by their authors are reference implementations of algorithms, NIHs ImageJ. The term is not normally applied to situations where the creator of a work retains residual rights, as rights are country-based and vary, a work may be subject to rights in one country and be in the public domain in another. Some rights depend on registrations on a basis, and the absence of registration in a particular country, if required. Although the term public domain did not come into use until the mid-18th century, the Romans had a large proprietary rights system where they defined many things that cannot be privately owned as res nullius, res communes, res publicae and res universitatis. The term res nullius was defined as not yet appropriated. The term res communes was defined as things that could be enjoyed by mankind, such as air, sunlight. The term res publicae referred to things that were shared by all citizens, when the first early copyright law was first established in Britain with the Statute of Anne in 1710, public domain did not appear. However, similar concepts were developed by British and French jurists in the eighteenth century, instead of public domain they used terms such as publici juris or propriété publique to describe works that were not covered by copyright law. The phrase fall in the domain can be traced to mid-nineteenth century France to describe the end of copyright term. In this historical context Paul Torremans describes copyright as a coral reef of private right jutting up from the ocean of the public domain. Because copyright law is different from country to country, Pamela Samuelson has described the public domain as being different sizes at different times in different countries. According to James Boyle this definition underlines common usage of the public domain and equates the public domain to public property. However, the usage of the public domain can be more granular. Such a definition regards work in copyright as private property subject to fair use rights, the materials that compose our cultural heritage must be free for all living to use no less than matter necessary for biological survival
United States
2 × battle stars
This article incorporates text from this source, which is in the public domain.
This article incorporates text from this source, which is in the 
United States Navy