1.
ICAO airport code
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The ICAO airport code or location indicator is a four-character alphanumeric code designating aerodromes around the world. ICAO codes are used to identify other aviation facilities such as weather stations, International Flight Service Stations or Area Control Centers. Flight information regions are identified by a unique ICAO-code. Code selections in North America were based on existing radio station identifiers, for example, radio stations in Canada were already starting with C, so it seemed logical to begin Canadian airport identifiers with Cxxx. The United States had many pre-existing airports with established mnemonic codes and their ICAO codes were formed simply by prepending a K to the existing codes, as half the radio station identifiers in the US began with K. Most ICAO codes outside the US and Canada have a geographical structure. Most of the rest of the world was classified in a more planned top-down manner, thus Uxxx referred to the Soviet Union with the second letter denoting the specific region within it, and so forth. Europe had too many locations for one starting letter, so it was split into Exxx for northern Europe. The second letter was more specific, EGxx was the United Kingdom, EDxx was West Germany, ETxx was East Germany, LExx was Spain, LAxx was Albania, France was designated LFxx, as the counterpart EFxx was the unambiguously northern Finland. ICAO codes are separate and different from IATA codes, which are used for airline timetables, reservations. For example, the IATA code for Londons Heathrow Airport is LHR, in general IATA codes are usually derived from the name of the airport or the city it serves, while ICAO codes are distributed by region and country. Far more aerodromes have ICAO codes than IATA codes, and to add to the confusion IATA codes are assigned to railway stations. Unlike the IATA codes, the ICAO codes generally have a structure and are comprehensive. In general, the first letter is allocated by continent and represents a country or group of countries within that continent, the second letter generally represents a country within that region, and the remaining two are used to identify each airport. The exception to rule is larger countries that have single-letter country codes. In either case, ICAO codes generally provide geographical context unlike IATA codes, for example, if one knows that the ICAO code for Heathrow is EGLL, then one can deduce that the airport EGGP is somewhere in the UK. On the other hand, knowing that the IATA code for Heathrow is LHR does not enable one to deduce the location of the airport LHV with any greater certainty, there are a few exceptions to the regional structure of the ICAO code made for political or administrative reasons. Similarly Saint Pierre and Miquelon is controlled by France, and airports there are assigned LFxx as though they were in Europe, further, in region L, all available 2-letter prefixes have been exhausted and thus no additional countries can be added
2.
Russian Air Force
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The Russian Air Force is a branch of the Russian Aerospace Forces, the latter being formed on the 1 August 2015 with the merger of the Russian Air Force and the Russian Aerospace Defence Forces. The modern Russian Air Force was originally established on the 7 May 1992 following Boris Yeltsins creation of the Ministry of Defence, however the air force can trace its lineage and traditions back to the Imperial Russian Air Service and the Soviet Air Forces. The Russian Navy has its own air arm, the Russian Naval Aviation, general Pyotr Deynekin, the former deputy commander-in-chief of the Soviet Air Forces, became the first commander of the new organisation on 24 August 1991. Russia received the majority of the most modern fighters and 65% of the manpower, the major commands of the former Soviet VVS – the Long Range Aviation, Military Transport Aviation and Frontal Aviation were renamed, with few changes, Russian VVS commands. However, many regiments, aircraft, and personnel were claimed by the republics they were based in, some aircraft in Belarus and Ukraine were returned to Russia, sometimes in return for debt reductions, as well as a long range aviation division based at Dolon in Kazakhstan. During the 1990s, the financial stringency felt throughout the forces made its mark on the Air Forces as well. As a result of the cutbacks, infrastructure became degraded as well, the VVS participated in the First Chechen War and the Second Chechen War. These campaigns also presented significant difficulties for the VVS including the terrain, lack of significant fixed targets and insurgents armed with Stinger, the former Soviet Air Defence Forces remained independent for several years under Russian control, only merging with the Air Forces in 1998. The decree merging the two forces was issued by President Boris Yeltsin on 16 July 1997, during 1998 altogether 580 units and formations were disbanded,134 reorganized, and over 600 given a new jurisdiction. More than 600,000 tons of material changed location and 3500 aircraft changed airfields, Military Transport Aviation planes took more than 40,000 families to new residence areas. The short-lived operational commands were abolished, two air armies, 37th Air Army and 61st Air Army, were established directly under the Supreme Command. The former frontal aviation and anti-aircraft forces were organized as Air Force Armies, there were initially four such armies with headquarters in St. Petersburg, Rostov-on-Don, Khabarovsk, and Chita. Two military districts had separate Air and Air Defence Corps, when the Transbaikal Military District and Siberian Military District were merged, the 14th Air Army was reactivated to serve as the air force formation in the area. The number of servicemen in the Air Force was reduced to about 185,000 from the combined number of 318,000. 123,500 positions were abolished, including almost 1000 colonel positions, the resignation of 3000 other servicemen included 46 generals of which 15 were colonel generals. The former Army Aviation was subsequently managed by the Chief of the Department of Army Aviation, during the 2000s, the Air Forces continued to suffer from a lack of resources for pilot training. In the 1990s Russian pilots achieved approximately 10% of the hours of the United States Air Force. In 2007, under the leadership of Vladimir Putin, the Russian Air Force resumed the Soviet-era practice of deploying its strategic bomber aircraft on long-range patrols and this ended a 15-year unilateral suspension due to fuel costs and other economic difficulties after the collapse of the Soviet Union
3.
Geographic coordinate system
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A geographic coordinate system is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are chosen such that one of the numbers represents a vertical position. A common choice of coordinates is latitude, longitude and elevation, to specify a location on a two-dimensional map requires a map projection. The invention of a coordinate system is generally credited to Eratosthenes of Cyrene. Ptolemy credited him with the adoption of longitude and latitude. Ptolemys 2nd-century Geography used the prime meridian but measured latitude from the equator instead. Mathematical cartography resumed in Europe following Maximus Planudes recovery of Ptolemys text a little before 1300, in 1884, the United States hosted the International Meridian Conference, attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt the longitude of the Royal Observatory in Greenwich, the Dominican Republic voted against the motion, while France and Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911, the latitude of a point on Earths surface is the angle between the equatorial plane and the straight line that passes through that point and through the center of the Earth. Lines joining points of the same latitude trace circles on the surface of Earth called parallels, as they are parallel to the equator, the north pole is 90° N, the south pole is 90° S. The 0° parallel of latitude is designated the equator, the plane of all geographic coordinate systems. The equator divides the globe into Northern and Southern Hemispheres, the longitude of a point on Earths surface is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses, which converge at the north and south poles, the prime meridian determines the proper Eastern and Western Hemispheres, although maps often divide these hemispheres further west in order to keep the Old World on a single side. The antipodal meridian of Greenwich is both 180°W and 180°E, the combination of these two components specifies the position of any location on the surface of Earth, without consideration of altitude or depth. The grid formed by lines of latitude and longitude is known as a graticule, the origin/zero point of this system is located in the Gulf of Guinea about 625 km south of Tema, Ghana. To completely specify a location of a feature on, in, or above Earth. Earth is not a sphere, but a shape approximating a biaxial ellipsoid. It is nearly spherical, but has an equatorial bulge making the radius at the equator about 0. 3% larger than the radius measured through the poles, the shorter axis approximately coincides with the axis of rotation
4.
Runway
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According to the International Civil Aviation Organization, a runway is a defined rectangular area on a land aerodrome prepared for the landing and takeoff of aircraft. Runways may be a surface or a natural surface. Runways are named by a number between 01 and 36, which is generally the magnetic azimuth of the heading in decadegrees. This heading differs from true north by the magnetic declination. A runway numbered 09 points east, runway 18 is south, runway 27 points west, when taking off from or landing on runway 09, a plane would be heading 90°. A runway can normally be used in both directions, and is named for each separately, e. g. runway 33 in one direction is runway 15 when used in the other. The two numbers usually differ by 18, Runway Zero Three Left becomes Runway Two One Right when used in the opposite direction. In some countries, if parallel runways are too close to each other, at large airports with four or more parallel runways some runway identifiers are shifted by 10 degrees to avoid the ambiguity that would result with more than three parallel runways. For example, in Los Angeles, this results in runways 6L, 6R, 7L. At Dallas/Fort Worth International Airport, there are five parallel runways, named 17L, 17C, 17R, 18L, for clarity in radio communications, each digit in the runway name is pronounced individually, runway three six, runway one four, etc. A leading zero, for example in runway zero six or runway zero one left, is included for all ICAO, however, most U. S. civil aviation airports drop the leading zero as required by FAA regulation. This also includes some military airfields such as Cairns Army Airfield and this American anomaly may lead to inconsistencies in conversations between American pilots and controllers in other countries. It is very common in a such as Canada for a controller to clear an incoming American aircraft to, for example, runway 04. In flight simulation programs those of American origin might apply U. S. usage to airports around the world, for example, runway 05 at Halifax will appear on the program as the single digit 5 rather than 05. Runway designations change over time because the magnetic poles slowly drift on the Earths surface, depending on the airport location and how much drift takes place, it may be necessary over time to change the runway designation. As runways are designated with headings rounded to the nearest 10 degrees, for example, if the magnetic heading of a runway is 233 degrees, it would be designated Runway 23. If the magnetic heading changed downwards by 5 degrees to 228, if on the other hand the original magnetic heading was 226, and the heading decreased by only 2 degrees to 224, the runway should become Runway 22. Because the drift itself is slow, runway designation changes are uncommon
5.
Concrete
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Concrete is a composite material composed of coarse aggregate bonded together with a fluid cement that hardens over time. Most concretes used are lime-based concretes such as Portland cement concrete or concretes made with other hydraulic cements, when aggregate is mixed together with dry Portland cement and water, the mixture forms a fluid slurry that is easily poured and molded into shape. The cement reacts chemically with the water and other ingredients to form a matrix that binds the materials together into a durable stone-like material that has many uses. Often, additives are included in the mixture to improve the properties of the wet mix or the finished material. Most concrete is poured with reinforcing materials embedded to provide tensile strength, famous concrete structures include the Hoover Dam, the Panama Canal, and the Roman Pantheon. The earliest large-scale users of technology were the ancient Romans. The Colosseum in Rome was built largely of concrete, and the dome of the Pantheon is the worlds largest unreinforced concrete dome. Today, large concrete structures are made with reinforced concrete. After the Roman Empire collapsed, use of concrete became rare until the technology was redeveloped in the mid-18th century, today, concrete is the most widely used man-made material. The word concrete comes from the Latin word concretus, the passive participle of concrescere, from con-. Perhaps the earliest known occurrence of cement was twelve years ago. A deposit of cement was formed after an occurrence of oil shale located adjacent to a bed of limestone burned due to natural causes and these ancient deposits were investigated in the 1960s and 1970s. On a human timescale, small usages of concrete go back for thousands of years and they discovered the advantages of hydraulic lime, with some self-cementing properties, by 700 BC. They built kilns to supply mortar for the construction of houses, concrete floors. The cisterns were kept secret and were one of the reasons the Nabataea were able to thrive in the desert, some of these structures survive to this day. In the Ancient Egyptian and later Roman eras, it was re-discovered that adding volcanic ash to the mix allowed it to set underwater, similarly, the Romans knew that adding horse hair made concrete less liable to crack while it hardened, and adding blood made it more frost-resistant. Crystallization of strätlingite and the introduction of pyroclastic clays creates further fracture resistance, german archaeologist Heinrich Schliemann found concrete floors, which were made of lime and pebbles, in the royal palace of Tiryns, Greece, which dates roughly to 1400–1200 BC. Lime mortars were used in Greece, Crete, and Cyprus in 800 BC, the Assyrian Jerwan Aqueduct made use of waterproof concrete
6.
Novaya Zemlya
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Administratively, it is incorporated as Novaya Zemlya District, one of the twenty-one in Arkhangelsk Oblast, Russia. Municipally, it is incorporated as Novaya Zemlya Urban Okrug and its population as of the 2010 Census was 2,429, of which 1,972 resided in Belushya Guba, an urban-type settlement that is the administrative center of Novaya Zemlya District. The population in 2002 was 2, 716 , the indigenous population consisted of about 50–300 Nenetses who subsisted mainly on fishing, trapping, reindeer herding, polar bear hunting and seal hunting. Natural resources include copper, lead, and zinc, Novaya Zemlya was a sensitive military area during the Cold War years and it is still used today. The Soviet Air Force maintained a presence at Rogachevo on the part of the island. It was used primarily for aircraft operations but also provided logistical support for the nearby nuclear test area. Novaya Zemlya is an extension of the Northern part of the Ural Mountains, and it is separated from the mainland by the Kara Strait. Novaya Zemlya consists of two islands, separated by the narrow Matochkin Strait, as well as a number of smaller islands. The two main islands are, Severny —which has an ice cap, the Severny Island ice cap. Yuzhny, which is largely unglaciated and has a tundra landscape, the coast of Novaya Zemlya is very indented, and it is the area with the largest number of fjords in the Russian Federation. Novaya Zemlya separates the Barents Sea from the Kara Sea, the total area is about 90,650 square kilometers. The highest mountain is located on the Northern island and is 1,547 meters high, the ecology of Novaya Zemlya is influenced by its severe climate, but the region nevertheless supports a diversity of biota. One of the most notable species present is the polar bear, the Russians knew of Novaya Zemlya from the 11th century, when hunters from Novgorod visited the area. For western Europeans, the search for the Northern Sea Route in the 16th century led to its exploration, the first visit from a west European was by Hugh Willoughby in 1553, and he met Russian ships from the already established hunting trade. Dutch explorer Willem Barentsz reached the west coast of Novaya Zemlya in 1594, during a later voyage by Fyodor Litke in 1821–1824, the west coast was mapped. Henry Hudson was another explorer who passed through Novaya Zemlya while searching for the Northeast Passage, the island was systematically surveyed by Pyotr Pakhtusov and Avgust Tsivolko in the early 1830s. The first permanent settlement was established in 1870 at Malye Karmakuly, later the administrative center was transferred to Belushya Guba, in 1935 to Lagernoe, but then returned to Belushya Guba. Small numbers of Nenets were resettled to Novaya Zemlya in the 1870s in a bid by Russia to keep out the Norwegians and this population, then numbering 298, was removed to the mainland in 1957 before nuclear testing began
7.
Russia
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Russia, also officially the Russian Federation, is a country in Eurasia. The European western part of the country is more populated and urbanised than the eastern. Russias capital Moscow is one of the largest cities in the world, other urban centers include Saint Petersburg, Novosibirsk, Yekaterinburg, Nizhny Novgorod. Extending across the entirety of Northern Asia and much of Eastern Europe, Russia spans eleven time zones and incorporates a range of environments. It shares maritime borders with Japan by the Sea of Okhotsk, the East Slavs emerged as a recognizable group in Europe between the 3rd and 8th centuries AD. Founded and ruled by a Varangian warrior elite and their descendants, in 988 it adopted Orthodox Christianity from the Byzantine Empire, beginning the synthesis of Byzantine and Slavic cultures that defined Russian culture for the next millennium. Rus ultimately disintegrated into a number of states, most of the Rus lands were overrun by the Mongol invasion. The Soviet Union played a role in the Allied victory in World War II. The Soviet era saw some of the most significant technological achievements of the 20th century, including the worlds first human-made satellite and the launching of the first humans in space. By the end of 1990, the Soviet Union had the second largest economy, largest standing military in the world. It is governed as a federal semi-presidential republic, the Russian economy ranks as the twelfth largest by nominal GDP and sixth largest by purchasing power parity in 2015. Russias extensive mineral and energy resources are the largest such reserves in the world, making it one of the producers of oil. The country is one of the five recognized nuclear weapons states and possesses the largest stockpile of weapons of mass destruction, Russia is a great power as well as a regional power and has been characterised as a potential superpower. The name Russia is derived from Rus, a state populated mostly by the East Slavs. However, this name became more prominent in the later history, and the country typically was called by its inhabitants Русская Земля. In order to distinguish this state from other states derived from it, it is denoted as Kievan Rus by modern historiography, an old Latin version of the name Rus was Ruthenia, mostly applied to the western and southern regions of Rus that were adjacent to Catholic Europe. The current name of the country, Россия, comes from the Byzantine Greek designation of the Kievan Rus, the standard way to refer to citizens of Russia is Russians in English and rossiyane in Russian. There are two Russian words which are translated into English as Russians
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