1.
United States
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Forty-eight of the fifty states and the federal district are contiguous and located in North America between Canada and Mexico. The state of Alaska is in the northwest corner of North America, bordered by Canada to the east, the state of Hawaii is an archipelago in the mid-Pacific Ocean. The U. S. territories are scattered about the Pacific Ocean, the geography, climate and wildlife of the country are extremely diverse. At 3.8 million square miles and with over 324 million people, the United States is the worlds third- or fourth-largest country by area, third-largest by land area. It is one of the worlds most ethnically diverse and multicultural nations, paleo-Indians migrated from Asia to the North American mainland at least 15,000 years ago. European colonization began in the 16th century, the United States emerged from 13 British colonies along the East Coast. Numerous disputes between Great Britain and the following the Seven Years War led to the American Revolution. On July 4,1776, during the course of the American Revolutionary War, the war ended in 1783 with recognition of the independence of the United States by Great Britain, representing the first successful war of independence against a European power. The current constitution was adopted in 1788, after the Articles of Confederation, the first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil liberties. During the second half of the 19th century, the American Civil War led to the end of slavery in the country. By the end of century, the United States extended into the Pacific Ocean. The Spanish–American War and World War I confirmed the status as a global military power. The end of the Cold War and the dissolution of the Soviet Union in 1991 left the United States as the sole superpower. The U. S. is a member of the United Nations, World Bank, International Monetary Fund, Organization of American States. The United States is a developed country, with the worlds largest economy by nominal GDP. It ranks highly in several measures of performance, including average wage, human development, per capita GDP. While the U. S. economy is considered post-industrial, characterized by the dominance of services and knowledge economy, the United States is a prominent political and cultural force internationally, and a leader in scientific research and technological innovations. In 1507, the German cartographer Martin Waldseemüller produced a map on which he named the lands of the Western Hemisphere America after the Italian explorer and cartographer Amerigo Vespucci
2.
Monoplane
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A monoplane is a fixed-wing aircraft with a single main wing plane, in contrast to a biplane or other multiplane, each of which has multiple planes. A monoplane has inherently the highest efficiency and lowest drag of any wing configuration and is the simplest to build, however, during the early years of flight, these advantages were offset by its greater weight and lower manoeuvrability, making it relatively rare until the 1930s. Since then, the monoplane has been the most common form for a fixed-wing aircraft, although the first successful aircraft were biplanes, the first attempts at heavier-than-air flying machines were monoplanes, and many pioneers continued to develop monoplane designs. For example, the first aeroplane to be put into production was the 1907 Santos-Dumont Demoiselle, while the Blériot XI flew across the English Channel in 1909, throughout 1909–1910, Hubert Latham set multiple altitude records in his Antoinette IV monoplane, eventually reaching 1,384 m. The equivalent German language term is Eindecker, as in the mid-wing Fokker Eindecker fighter of 1915 which for a time dominated the skies in what known as the Fokker scourge. The German military Idflieg aircraft designation system prior to 1918 prefixed monoplane type designations with an E, however, the success of the Fokker was short-lived, and World War I was dominated by biplanes. Towards the end of the war, the parasol monoplane became popular, nonetheless, relatively few monoplane types were built between 1914 and the late 1920s, compared with the number of biplanes. The reasons for this were primarily practical, towards the end of the First World War, the inherent high drag of the biplane was beginning to restrict performance. Engines were not yet enough to make the heavy cantilever-wing monoplane viable. It remained popular throughout the 1920s, on flying boats with a shallow hull, a parasol wing allows the engines to be mounted above the spray from the water when taking off and landing. It was popular on flying boats during the 1930s, an example being the Consolidated PBY Catalina. It died out when taller hulls became the norm during World War II, most military aircraft of WW II were monoplanes, as have been virtually all aircraft since. Jet and rocket engines have more power, and all modern high-speed aircraft. The inherent efficiency of the monoplane can best be realised in the cantilever wing which carries all structural forces internally. By contrast, a wing has additional drag from the exposed bracing struts and/or wires. On the other hand, the wing has greater structural efficiency. This in turn means that for a wing of a size, bracing allows it to fly slower with a lower-powered engine, while a heavy cantilever wing needs a more powerful engine. A cantilever wing can be lighter by making it thicker
3.
Unmanned aerial vehicle
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An unmanned aerial vehicle, commonly known as a drone, is an aircraft without a human pilot aboard. UAVs are a component of an unmanned aircraft system, which include a UAV, a controller. The flight of UAVs may operate with various degrees of autonomy, either under control by a human operator, or fully or intermittently autonomously. Compared to manned aircraft, UAVs are often preferred for missions too dull, civilian drones now vastly outnumber military drones, with estimates of over a million sold by 2015. Multiple terms are used for unmanned vehicles, which generally refer to the same concept. The term drone, more used by the public, was coined in reference to the resemblance of navigation. The term has encountered opposition from aviation professionals and government regulators. This term emphasizes the importance of other than the aircraft. It includes elements such as ground stations, data links. A similar term is a vehicle system remotely piloted aerial vehicle. Many similar terms are in use, therefore, missiles are not considered UAVs because the vehicle itself is a weapon that is not reused, though it is also unmanned and in some cases remotely guided. The relation of UAVs to remote controlled model aircraft is unclear, UAVs may or may not include model aircraft. Some jurisdictions base their definition on size or weight, however, a radio-controlled aircraft becomes a drone with the addition of an autopilot artificial intelligence, and ceases to be a drone when an AI is removed. In 1849 Austria sent unmanned, bomb-filled balloons to attack Venice, UAV innovations started in the early 1900s and originally focused on providing practice targets for training military personnel. UAV development continued during World War I, when the Dayton-Wright Airplane Company invented a pilotless aerial torpedo that would explode at a preset time, the earliest attempt at a powered UAV was A. M. Lows Aerial Target in 1916. Nikola Tesla described a fleet of unmanned aerial vehicles in 1915. Advances followed during and after World War I, including the Hewitt-Sperry Automatic Airplane, the first scaled remote piloted vehicle was developed by film star and model-airplane enthusiast Reginald Denny in 1935. More emerged during World War II – used both to train gunners and to fly attack missions
4.
Prototype
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A prototype is an early sample, model, or release of a product built to test a concept or process or to act as a thing to be replicated or learned from. It is a used in a variety of contexts, including semantics, design, electronics. A prototype is used to evaluate a new design to enhance precision by system analysts. Prototyping serves to provide specifications for a real, working system rather than a theoretical one, in some design workflow models, creating a prototype is the step between the formalization and the evaluation of an idea. The word prototype derives from the Greek πρωτότυπον prototypon, primitive form, neutral of πρωτότυπος prototypos, original, primitive, from πρῶτος protos, first and τύπος typos, a Working Prototype represents all or nearly all of the functionality of the final product. A Visual Prototype represents the size and appearance, but not the functionality, a User Experience Prototype represents enough of the appearance and function of the product that it can be used for user research. A Functional Prototype captures both function and appearance of the design, though it may be created with different techniques. A Paper Prototype is a printed or hand-drawn representation of the interface of a software product. In some cases, the final production materials may still be undergoing development themselves, process - Mass-production processes are often unsuitable for making a small number of parts, so prototypes may be made using different fabrication processes than the final product. Differences in fabrication process may lead to differences in the appearance of the prototype as compared to the final product, verification - The final product may be subject to a number of quality assurance tests to verify conformance with drawings or specifications. These tests may involve custom inspection fixtures, statistical sampling methods, prototypes are generally made with much closer individual inspection and the assumption that some adjustment or rework will be part of the fabrication process. Prototypes may also be exempted from some requirements that apply to the final product. Engineers and prototype specialists will attempt to minimize the impact of these differences on the role for the prototype. Engineers and prototyping specialists seek to understand the limitations of prototypes to exactly simulate the characteristics of their intended design and it is important to realize that by their very definition, prototypes will represent some compromise from the final production design. Due to differences in materials, processes and design fidelity, it is possible that a prototype may fail to perform acceptably whereas the design may have been sound. In general, it can be expected that individual prototype costs will be greater than the final production costs due to inefficiencies in materials. Prototypes are also used to revise the design for the purposes of reducing costs through optimization and it is possible to use prototype testing to reduce the risk that a design may not perform as intended, however prototypes generally cannot eliminate all risk. As an alternative, rapid prototyping or rapid application development techniques are used for the prototypes, which implement part
5.
Monocoque
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Monocoque, also structural skin, is a structural system where loads are supported through an objects external skin, similar to an egg shell. The word monocoque is a French term for single shell or single hull, a true monocoque carries both tensile and compressive forces within the skin and can be recognised by the absence of a load carrying internal frame. By contrast, a semi-monocoque is a combining a tensile stressed skin. Other semi-monocoques not to be confused with true monocoques include vehicle unibodies, which tend to be composites, early aircraft were constructed using frames, typically of wood or steel tubing, which could then be covered with fabric such as irish linen or cotton. The skin added nothing to the strength of the airframe and was dead weight beyond providing a smooth sealed surface. This reduced drag so effectively it was able to win most of the races it was entered into, however, it was prone to damage from moisture and delamination. While all metal aircraft from the Junkers firm had appeared as early as 1915, the first metal monocoques were built by Claudius Dornier, while working for Zeppelin-Lindau. After failed attempts with several large flying boats in which a few components were monocoques, the aluminum alloy monocoque chassis was first used in the 1962 Lotus 25 Formula 1 race car. The term monocoque is frequently misused when referring to unibody cars, in motor racing, the safety of the driver depends on the car body which must meet stringent regulations and a few cars have been built with monocoque structures. Tanks and other armored vehicles such as the German Fuchs 2 and this reduces weight for a given amount of armor compared to vehicles to which armor has been attached to an underlying frame. A monocoque-framed motorcycle was developed by the Spanish motorcycle manufacturer, Ossa, Ossa won four Grand Prix races with the monocoque bike before their rider was killed during the 1970 Isle of Man TT, causing the Ossa factory to withdraw from Grand Prix competition. Notable designers such as Eric Offenstadt and Dan Hanebrink created unique monocoque designs in the early 1970s, the 1973 Isle of Man TT was won by Peter Williams on the monocoque-framed Norton John Player Special that he helped design. Honda also experimented with a monocoque Grand Prix racing motorcycle named the NR500 in 1979, in 1987 John Britten developed the Aero-D One, featuring a composite monocoque chassis that weighed only 12 kg. The first time an aluminium monocoque frame appeared on a production motorcycle was the 2000 Kawasaki Ninja ZX-12R. This was Kawasakis flagship production sportbike aimed at being the fastest production motorcycle, various rockets have used pressure-stabilized monocoque designs, such as Atlas and Falcon 1. Balloon tanks are not true monocoques but act in the way as inflatable shells. A balloon tank skin only handles tensile forces while compression is resisted by internal pressure in a way similar to semi-monocoques braced by a solid frame. This becomes obvious when internal pressure is lost and the structure collapses, the Handle is an electric guitar characterized by its hollow sectioned monocoque chassis, created by the award-winning designer Peter Solomon
6.
Fuselage
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The fuselage is an aircrafts main body section. It holds crew, passengers, and cargo, the fuselage also serves to position control and stabilization surfaces in specific relationships to lifting surfaces, which is required for aircraft stability and maneuverability. This type of structure is still in use in lightweight aircraft using welded steel tube trusses. A box truss fuselage structure can also be out of wood—often covered with plywood. Simple box structures may be rounded by the addition of supported lightweight stringers, allowing the fabric covering to form an aerodynamic shape. Geodesic structural elements were used by Barnes Wallis for British Vickers between the wars and into World War II to form the whole of the fuselage, including its aerodynamic shape. In this type of construction multiple flat strip stringers are wound about the formers in opposite spiral directions and this proved to be light, strong, and rigid and had the advantage of being made almost entirely of wood. A similar construction using aluminum alloy was used in the Vickers Warwick with less materials than would be required for other structural types, the geodesic structure is also redundant and so can survive localized damage without catastrophic failure. A fabric covering over the completed the aerodynamic shell. The logical evolution of this is the creation of fuselages using molded plywood, in this method, the exterior surface of the fuselage is also the primary structure. A typical early form of this was built using molded plywood, a later form of this structure uses fiberglass cloth impregnated with polyester or epoxy resin, instead of plywood, as the skin. An example of a larger molded plywood aircraft is the de Havilland Mosquito fighter/light bomber of World War II, no plywood-skin fuselage is truly monocoque, since stiffening elements are incorporated into the structure to carry concentrated loads that would otherwise buckle the thin skin. The use of molded fiberglass using negative molds is prevalent in the production of many modern sailplanes. The use of molded composites for fuselage structures is being extended to large aircraft such as the Boeing 787 Dreamliner. This is the method of constructing an all-aluminum fuselage. First, a series of frames in the shape of the cross sections are held in position on a rigid fixture. These frames are then joined with lightweight longitudinal elements called stringers and these are in turn covered with a skin of sheet aluminum, attached by riveting or by bonding with special adhesives. The fixture is then disassembled and removed from the fuselage shell, which is then fitted out with wiring, controls
7.
Conventional landing gear
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Conventional landing gear, or tailwheel-type landing gear, is an aircraft undercarriage consisting of two main wheels forward of the center of gravity and a small wheel or skid to support the tail. The term taildragger is also used, although some claim it should apply only to aircraft with a tail skid rather than a wheel. The term conventional persists for historical reasons, but all modern jet aircraft, in early aircraft, a tailskid made of metal or wood was used to support the tail on the ground. In most modern aircraft with landing gear, a small articulated wheel assembly is attached to the rearmost part of the airframe in place of the skid. This wheel may be steered by the pilot through a connection to the pedals, allowing the rudder. Before aircraft commonly used tailwheels, many aircraft were equipped with steerable tailskids and this is also used on some tricycle gear aircraft, with the nose wheel being the freely castering wheel instead. Like the steerable tailwheel/skid, it is integrated with the rudder pedals on the craft to allow an easy transition between wheeled and aerodynamic control. The tailwheel configuration offers several advantages over the landing gear arrangement. Due to its much further from the center of gravity. As a result, the wheel weighs less and causes less parasitic drag. If a tailwheel fails on landing, the damage to the aircraft will be minimal and this is not the case in the event of a nosewheel failure, which usually results in a prop strike. Tailwheel aircraft are suitable for operation on skis. Tailwheel aircraft are easier to fit into and maneuver inside some hangars, the conventional landing gear arrangement has disadvantages compared to nose wheel aircraft. Tailwheel aircraft are subject to nose-over accidents due to injudicious application of brakes by the pilot. Conventional geared aircraft are more susceptible to ground looping. A ground loop occurs when directional control is lost on the ground and this event can result in damage to the aircrafts undercarriage, tires, wingtips, propeller and engine. Avoiding ground loops requires more pilot training and skill, tailwheel aircraft generally suffer from poorer forward visibility on the ground, compared to nose wheel aircraft. Often this requires continuous S turns on the ground to allow the pilot to see where they are taxiing and they also suffer from lower crosswind capability and in some wind conditions may be unable to use crosswind runways or single-runway airports
8.
Uruguay
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Uruguay, officially the Oriental Republic of Uruguay, is a country in the southeastern region of South America. It borders Argentina to its west and Brazil to its north and east, with the Río de la Plata to the south and the Atlantic Ocean to the southeast. Uruguay is home to an estimated 3.42 million people, of whom 1.8 million live in the area of its capital and largest city. With an area of approximately 176,000 square kilometres, Uruguay is geographically the second-smallest nation in South America, only larger in size than Suriname. Uruguay was inhabited by the Charrúa people for approximately 4000 years before the Portuguese established Colonia del Sacramento, one of the oldest European settlements in the region, in 1680. Montevideo was founded as a stronghold by the Spanish in the early 18th century. Uruguay won its independence between 1811 and 1828, following a struggle between Spain, Portugal, Argentina and Brazil. It remained subject to influence and intervention throughout the 19th century. Modern Uruguay is a constitutional republic, with a president who serves as both head of state and head of government. Uruguay is ranked first in Latin America in democracy, peace, lack of corruption, e-government, on a per-capita basis, Uruguay contributes more troops to United Nations peace-keeping missions than any other country. It ranks second in the region on economic freedom, income equality, per-capita income, Uruguay is the third-best country on the continent in terms of HDI, GDP growth, innovation and infrastructure. It is regarded as a country by the UN. Uruguay is also the third-best ranked in the world in e-Participation, Uruguay is an important global exporter of combed wool, rice, soybeans, frozen beef, malt and milk. Nearly 95% of Uruguays electricity comes from energy, mostly hydroelectric facilities. The Economist named Uruguay country of the year in 2013, acknowledging the innovative policy of legalizing the production, sale, the name of the namesake river comes from the Spanish pronunciation of the regional Guarani word for it. There are several interpretations, including bird-river, the name could also refer to a river snail called uruguá that was plentiful in the water. The only documented inhabitants of Uruguay before European colonization of the area were the Charrúa, the Portuguese discovered the region of present-day Uruguay in 1512. The Spanish arrived in present-day Uruguay in 1516, the indigenous peoples fierce resistance to conquest, combined with the absence of gold and silver, limited their settlement in the region during the 16th and 17th centuries
9.
Mooney International Corporation
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The Mooney International Corporation is a Chinese-owned manufacturer of single-engined general aviation aircraft based in Kerrville, Texas, United States. The company has gone bankrupt and changed several times. All Mooney aircraft have the vertical stabilizer with its vertical leading edge. Mooney Aircraft Corporation was started in 1929 by Albert Mooney and his brother Arthur, with funding from the Bridgeport Machine Company of Wichita, Mooney Aircraft went bankrupt in 1930. The Mooney brothers worked for aircraft companies from then through World War II. In 1946, Albert started Mooney Aircraft, Inc. with Charles Pappy Yankey in Kerrville, the next year Arthur joined the company. The first aircraft produced by the new Mooney company was the small, single-seat, the Mooney Mite established some of the design concepts still used by Mooney today. The model Mooney M20 entered production in 1955 and outwardly resembled a scaled-up Mite, Mooney is still producing variants of the M20 today. In 1953, before funds were put in place for production of the M20, Mooneys financial backer, Charles Yankey, in 1955, Albert Mooney sold his stock in the company to Harold Rachal and Norman Hoffman, then left the company to work for Lockheed Corporation. Shortly after, Arthur left Mooney to work for Lockheed, too, in 1965, the company became the U. S. distributor for Mitsubishi aircraft and began selling the Mooney MU-2 operating as Mooney-Mitsubishi Aircraft Inc. In 1967, Mooney acquired production rights to the Ercoupe from Alon Aircraft Company, the M10 became the final Ercoupe variant, and production ended in 1970. Mooney went bankrupt again in early 1969 and was sold to American Electronics Labs, then to Butler Aviation, for about three years, Mooney failed to produce any aircraft. In 1973, Republic Steel Corporation acquired the rights and tooling for Mooney, the company continued aggressive product development, working on yet another pressurized single-engined aircraft to compete with the Cessna 210. The turboprop Mooney 301 eventually became the TBM700 and is now produced by Socata Aircraft, engineer, Roy LoPresti was hired as chief of research and development to update the M20, developing the efficient Mooney 201. In 1984, Mooney merged with the French distribution firm Alexander Couvelaire, in July 2001, Mooney was the victim of yet another bankruptcy and the company was acquired by Advanced Aerodynamics and Structures, Inc. in 2002. AASI resurrected Mooney under the name Mooney Aircraft Company, Inc. a division of Mooney Aerospace Group, in 2004, MASG sold off the Mooney assets to Allen Holding Finance in May, and filed for bankruptcy on June 10. In December 2004, MASG restructured and reacquired Mooney Aircraft Company from Allen Holding Finance, in November,2004, Gretchen L. Jahn joined Mooney, becoming the first woman recruited to be CEO of a U. S. aircraft manufacturer. Jahn served for two years as a turnaround specialist, rebuilding Mooneys sales and dealer network, and after-sales service activities and she also oversaw the development and introduction of the M20TN Acclaim and the Garmin G1000-equipped Ovation2 GX and Bravo GX
10.
United States Army Air Corps
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The United States Army Air Corps was the military aviation arm of the United States of America between 1926 and 1941. The USAAC was renamed from the earlier United States Army Air Service on 2 July 1926, the Air Corps became the United States Army Air Forces on 20 June 1941, giving it greater autonomy from the Armys middle-level command structure. The separation of the Air Corps from control of its combat units caused problems of unity of command that became more acute as the Air Corps enlarged in preparation for World War II. This was resolved by the creation of the Army Air Forces, the U. S. Army Air Service had a brief but turbulent history. In early 1926 the Military Affairs Committee of the Congress rejected all bills set forth before it on both sides of the issue. They fashioned a compromise in which the findings of the Morrow Board were enacted as law, while providing the air arm a five-year plan for expansion and development. The legislation changed the name of the Air Service to the Air Corps, thereby strengthening the conception of military aviation as an offensive, the Air Corps Act became law on 2 July 1926. Two additional brigadier generals would serve as assistant chiefs of the Air Corps, previous provisions of the National Defense Act of 1920 that all flying units be commanded only by rated personnel and that flight pay be awarded were continued. The Air Corps also retained the Prop and Wings as its branch insignia through its disestablishment in 1947, patrick became Chief of the Air Corps and Brig. Gen. James E. Fechet continued as his first assistant chief. The Air Corps Act of 2 July 1926 effected no fundamental innovation, the change in designation meant no change in status, the Air Corps was still a combatant branch of the Army with less prestige than the Infantry. The Air Corps Act gave authorization to carry out an expansion program. However, a lack of appropriations caused the beginning of the program to be delayed until 1 July 1927. The act authorized expansion to 1,800 airplanes,1,650 officers, none of the goals were reached by July 1932. Organizationally the Air Corps doubled from seven to fifteen groups, but the expansion was meaningless because all were seriously understrength in aircraft and pilots. Air Corps groups added 1927–1937 ¹Inactivated on 20 May 1937 ²Redesignated 17th Attack Group, 17th Bomb Group As units of the Air Corps increased in number, so did higher command echelons. The 1st Bomb Wing was activated in 1931, followed by the 3rd Attack Wing in 1932 to protect the Mexican border, the three wings became the foundation of General Headquarters Air Force upon its activation in 1935. In 1927 the Air Corps adopted a new scheme for painting its aircraft. The wings and tails of aircraft were painted yellow, with the words U. S
11.
Continental O-200
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The Continental C90 and O-200 are a family of air-cooled, horizontally opposed, four-cylinder, direct-drive aircraft engines of 201 in³ displacement, producing between 90 and 100 horsepower. The light-sport aircraft standard is for small, simple single- and two-seat aircraft for which the O-200 is well-suited, the C90 was introduced in 1947 as a follow-on to the A65, which had been in production since 1939. Many of the powered by the C90 are upgraded variants of earlier A65 powered designs, such as the Piper J-3 Cub and PA-11 Cub Special, Aeronca 7AC. The engine was developed from the earlier O-190 by increasing the stroke 1⁄4 inch and this engine family is considered to be dependable, according to both industry publications and the FAA. The Rolls-Royce O-200-A powers the Beagle B.121 Pup 100, the Bölkow BO208 C Junior, the Avions Robin DR220, all versions of the C90 and O-200 are four-stroke reciprocating engines and are all similar in size, displacement and weight. These engines are fitted with an updraft carburetor, though the C90-8FJ, -12FJ. They utilize a redundant ignition system requiring no power, driving two magnetos, each of which fires one spark plug per cylinder. Each cylinder has one intake valve and one exhaust valve, pushrod-activated, continentals recommended time between overhaul for these engines is 1,800 hours of operation or 12 years in service, whichever is reached first. The standard certification for the C90 and O-200 specifies Avgas 80/87 as the minimum fuel grade, both are eligible for operation on automobile gasoline on the basis of Supplemental Type Certificates. C90 While the C90 is approved for takeoff power of 95 horsepower for five minutes, as noted above, certain models of the C90 replace the usual carburetor with a fuel injection system. In addition, there are models which provide for the installation of a propeller and one. While having slightly less horsepower than the O200, many floatplane operators prefer the performance of the C90 over the O200 and this is primarily due to the C90s camshaft design. The C90 is also known by its designation of O-205. C90-8FJ C90-12F C90-12FH C90-12FJ C90-12FP C90-14FJ C90-16F O-200 The O-200 is an updated and upgraded version of the engine, O-200-A O-200-AF UL91 and UL9495 hp alternate fuel engine. An engine designated the IOL-200, an O-200 variant modified with fuel injection and liquid cooling, powered the 1986 nonstop, formula One racer Sharp Nemesis, designed and flown by Jon Sharp, was powered by a stock O-200. Between 1991 and 1999, the plane won 45 of the 48 events in which it was entered, in one of those records, Nemesis was clocked at over 290 mph. By contrast, the O-200 powered Legend Cub cruises at 95 mph, data from Engine specifications, O-200-A & B
12.
National Air and Space Museum
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The National Air and Space Museum of the Smithsonian Institution, also called the NASM, is a museum in Washington, D. C. It holds the largest collection of aircraft and spacecraft in the world. It was established in 1946 as the National Air Museum and opened its building on the National Mall near LEnfant Plaza in 1976. In 2014, the museum saw approximately 6.7 million visitors, the museum contains the Apollo 11 module, the Friendship 7 capsule which was flown by John Glenn, the Bell X-1 which broke the sound barrier, and the Wright brothers plane near the entrance. The National Air and Space Museum is a center for research into the history and science of aviation and spaceflight, as well as science and terrestrial geology. Almost all space and aircraft on display are originals or the original backup craft and it operates an annex, the Steven F. Udvar-Hazy Center, at Dulles International Airport, which opened in 2003 and itself encompasses 760,000 square feet. The museum currently conducts restoration of its collection at the Paul E. St, the mass of the museum is similar to the National Gallery of Art across the National Mall, and uses the same pink Tennessee marble as the National Gallery. Built by Gilbane Building Company, the museum was completed in 1976, the west glass wall of the building is used for the installation of airplanes, functioning as a giant door. The Air and Space Museum was originally called the National Air Museum when formed on August 12,1946 by an act of Congress and signed into law by President Harry S. Truman. The String fellow steam engine intended for aircraft was added to the collection in 1889, some pieces were on display in the Arts and Industries Building, some were stored in the Aircraft Building, a large temporary metal shed in the Smithsonian Castles south yard. Larger missiles and rockets were displayed outdoors in what was known as Rocket Row, the shed housed a large Martin bomber, a LePere fighter-bomber, and an Aeromarine 39B floatplane. Still, much of the collection remained in storage due to a lack of display space, the current Garber Facility was ceded to the Smithsonian by the Maryland-National Capital Park and Planning Commission in 1952 after the curator Paul E. Garber spotted the wooded area from the air. Bulldozers from Fort Belvoir and prefabricated buildings from the United States Navy kept the initial costs low, the Steven F. Udvar-Hazy Center opened in 2003, funded by a private donation. The museum also holds the mirror for the Hubble which. The Smithsonian has also promised the International Cometary Explorer, which is currently in a solar orbit that occasionally brings it back to Earth. The Air and Space Museum announced a renovation of its main entrance hall. The renovation to the hall was funded by a $30 million donation from Boeing. The gift, which will be paid over seven years, is the largest corporate donation ever received by the Air, Boeing had previously given donations totaling $58 million
