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North American NA-57
The North American Aviation NA-16 was the first trainer aircraft built by North American Aviation, and was the beginning of a line of closely related North American trainer aircraft that would eventually number more than 17,000 examples, notably the T-6 Texan family. Design and development On 10 December 1934, James Howard "Dutch" Kindelberger, John L. "Lee" Atwood, and H.R. Raynor sketched out the specifications for the NA-16. A key characteristic for the advanced trainer was a closed canopy. The NA-16 is a family of related single-engine, low-wing monoplanes with tandem seating. Variants could have an open cockpit (the prototype and the NA-22) or be under a glass greenhouse that covered both cockpits.Hagedorn 1997, pp. 20–21. On some variants, the rear of the canopy could be opened for a gunner to fire to the rear. A variety of air-cooled radial engines, including the Wright Whirlwind, Pratt & Whitney Wasp and Pratt & Whitney Wasp Junior of varying horsepowers, coul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toncontín International Airport
Toncontín International Airport or Teniente Coronel Hernán Acosta Mejía Airport is a civil and military airport located from the centre of Tegucigalpa, Honduras. The History Channel programme ''Most Extreme Airports'' ranks it as the second most extreme airport in the world.''Most Extreme Airports''; The History Channel; August 26, 2010 The approach to the airport is considered to be one of the most difficult in the world to all aircraft, especially in inclement weather conditions. History Since the 19th century, the plains south of Tegucigalpa became known as the "''Potrero Los Llanos''", part of a farm adjoining the farm Loarque. In these areas, some political events took place. José Santos Guardiola defeated General José Trinidad Cabañas, seizing presidency of the republic. "''El Llano''" as it was known, is to the south end of Comayagüela. On a road to the south is the field that served for the takeoff and landing of aircraft. Currently, this forms the Hernán Aco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pratt & Whitney Wasp Junior
The Pratt & Whitney R-985 Wasp Junior is a series of nine-cylinder, air-cooled, radial aircraft engines built by the Pratt & Whitney Aircraft Company from the 1930s to the 1950s. These engines have a displacement of ; initial versions produced , while the most widely used versions produce . Wasp Juniors have powered numerous smaller civil and military aircraft, including small transports, utility aircraft, trainers, agricultural aircraft, and helicopters. Over 39,000 engines were built, and many are still in service today. Design and development Pratt & Whitney developed the R-985 Wasp Junior as a smaller version of the R-1340 Wasp to compete in the market for medium-sized aircraft engines. Like its larger brother, the Wasp Junior was an air-cooled, nine-cylinder radial, with its power boosted by a gear-driven single-speed centrifugal type supercharger. Its cylinders were smaller, however, with a bore and stroke of , giving a 27% lesser total displacement. The Wasp Junior used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flygvapnet
The Swedish Air Force ( sv, Svenska flygvapnet or just ) is the air force branch of the Swedish Armed Forces. History The Swedish Air Force was created on 1 July, 1926 when the aircraft units of the Army and Navy were merged. Because of the escalating international tension during the 1930s the Air Force was reorganized and expanded from four to seven squadrons. World War II When World War II broke out in 1939 further expansion was initiated and this substantial expansion was not finished until the end of the war. Although Sweden never entered the war, a large air force was considered necessary to ward off the threat of invasion and to resist pressure through military threats from the great powers. By 1945 the Swedish Air Force had over 800 combat-ready aircraft, including 15 fighter divisions. A major problem for the Swedish Air Force during World War II was the lack of fuel. Sweden was surrounded by countries at war and could not rely on imported oil. Instead domestic oil s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Netherlands Air Force
, colours = , colours_label = , march = ''Parade March of the Royal Netherlands Air Force'' , mascot = , anniversaries = , equipment = , equipment_label = , battles = , decorations = , battle_honours = , battle_honours_label = , flying_hours = , website defensie.nl, commander1 = Lieutenant-general Dennis Luyt , commander1_label = Commander of the Royal Netherlands Air Force , notable_commanders = , identification_symbol = , identification_symbol_label = Roundel , identification_symbol_2 = , identification_symbol_2_label = , identification_symbol_3 = , identification_symbol_3_label = , identification_symbol_4 = , identification_symbol_ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pratt & Whitney R-1340 Wasp
The Pratt & Whitney R-1340 Wasp is an aircraft engine of the reciprocating type that was widely used in American aircraft from the 1920s onward. It was the Pratt & Whitney aircraft company's first engine, and the first of the famed Wasp series. It was a single-row, nine-cylinder, air-cooled, radial design, and displaced 1,344 cubic inches (22 L); bore and stroke were both 5.75 in (146 mm). A total of 34,966 engines were produced. As well as numerous types of fixed-wing aircraft, it was used to power helicopters, the Agusta-Bell AB.102 and the Sikorsky H-19, and a class of airship, the K-class blimp. In 2016, it received designation as a Historic Engineering Landmark from the American Society of Mechanical Engineers. Variants ''Note:'' R for Radial and 1340 for 1340 cubic inch displacement. ;R-1340-7: , ;R-1340-8: ;R-1340-9: , ;R-1340-16: ;R-1340-17: ;R-1340-19: ;R-1340-19F: ;R-1340-21G: ;R-1340-22: ;R-1340-23: ;R-1340-30: ;R-1340-31: ;R-1340-3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Canadian Air Force
The Royal Canadian Air Force (RCAF; french: Aviation royale canadienne, ARC) is the air and space force of Canada. Its role is to "provide the Canadian Forces with relevant, responsive and effective airpower". The RCAF is one of three environmental commands within the unified Canadian Armed Forces. As of 2020, the Royal Canadian Air Force consists of 12,074 Regular Force and 1,969 Primary Reserve personnel, supported by 1,518 civilians, and operates 258 manned aircraft and nine unmanned aerial vehicles. Lieutenant-General Eric Kenny is the current commander of the Royal Canadian Air Force and chief of the Air Force Staff. The Royal Canadian Air Force is responsible for all aircraft operations of the Canadian Forces, enforcing the security of Canada's airspace and providing aircraft to support the missions of the Royal Canadian Navy and the Canadian Army. The RCAF is a partner with the United States Air Force in protecting continental airspace under the North American Aerospac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pratt & Whitney R-985 Wasp Junior
The Pratt & Whitney R-985 Wasp Junior is a series of nine-cylinder, air-cooled, radial aircraft engines built by the Pratt & Whitney Aircraft Company from the 1930s to the 1950s. These engines have a displacement of ; initial versions produced , while the most widely used versions produce . Wasp Juniors have powered numerous smaller civil and military aircraft, including small transports, utility aircraft, trainers, agricultural aircraft, and helicopters. Over 39,000 engines were built, and many are still in service today. Design and development Pratt & Whitney developed the R-985 Wasp Junior as a smaller version of the R-1340 Wasp to compete in the market for medium-sized aircraft engines. Like its larger brother, the Wasp Junior was an air-cooled, nine-cylinder radial, with its power boosted by a gear-driven single-speed centrifugal type supercharger. Its cylinders were smaller, however, with a bore and stroke of , giving a 27% lesser total displacement. The Wasp Junior used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Townend Ring
A Townend ring is a narrow- chord cowling ring fitted around the cylinders of an aircraft radial engine to reduce drag and improve cooling. Development The Townend ring was the invention of Dr. Hubert Townend of the British National Physical Laboratory in 1929. Patents were supported by Boulton & Paul Ltd in 1929. In the United States it was often called a "drag ring". It caused a reduction in the drag of radial engines and was widely used in high-speed designs of 1930–1935, before the long-chord NACA cowling came into general use. Despite suggestions of it exploiting the Meredith effect, low airspeeds, low temperature differences and small mass flows make that unlikely, particularly when combined with the lack of flow control as the air exits the cowling.Becker, J.; ''The high-speed frontier: Case histories of four NACA programs, 1920–1950'', SP-445, NASA (1980)Chapter 5: High-speed Cowlings, Air Inlets and Outlets, and Internal-Flow Systems: The ramjet investigati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American BT-9 Manual Drawing
North is one of the four compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. ''North'' is a noun, adjective, or adverb indicating direction or geography. Etymology The word ''north'' is related to the Old High German ''nord'', both descending from the Proto-Indo-European unit *''ner-'', meaning "left; below" as north is to left when facing the rising sun. Similarly, the other cardinal directions are also related to the sun's position. The Latin word ''borealis'' comes from the Greek '' boreas'' "north wind, north", which, according to Ovid, was personified as the wind-god Boreas, the father of Calais and Zetes. ''Septentrionalis'' is from ''septentriones'', "the seven plow oxen", a name of ''Ursa Major''. The Greek ἀρκτικός (''arktikós'') is named for the same constellation, and is the source of the English word ''Arctic''. Other languages have other derivations. For example, in Lezgian, ''kefer'' can mean b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Japanese Navy
The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, when it was dissolved following Japan's surrender in World War II. The Japan Maritime Self-Defense Force (JMSDF) was formed between 1952–1954 after the dissolution of the IJN. The Imperial Japanese Navy was the third largest navy in the world by 1920, behind the Royal Navy and the United States Navy (USN). It was supported by the Imperial Japanese Navy Air Service for aircraft and airstrike operation from the fleet. It was the primary opponent of the Western Allies in the Pacific War. The origins of the Imperial Japanese Navy go back to early interactions with nations on the Asian continent, beginning in the early medieval period and reaching a peak of activity during the 16th and 17th centuries at a time of cultural exchange with European powers during the Age of Discovery. After t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kyushu K10W
The Kyushu K10W Type 2 Land based intermediate trainer (Code Named ''Oak'' by the Allies) was a single engine low wing fixed undercarriage monoplane training aircraft which served in the Imperial Japanese Navy Air Service in the latter part of World War II. Design and development It was designed by the Kyushu Aircraft Company to the 14-Shi Intermediate Trainer specification of mid 1939 which required a design similar to the North American NA-16 following the Mitsubishi's purchase of an NA-16-4R and an NA-16-4RW on behalf of the Japanese Navy. Design work commenced in January 1940 and the first prototype was ready by April 1941.Starkings, 2007, pp.26–31 Despite the similarity of the K10W to other contemporary Japanese aircraft such as the Tachikawa Ki-55 and Mitsubishi Ki-51, it suffered from stall and stability problems that resulted in 16 pre-production testing aircraft being built.Starkings, 2007, pp.26–31 Work at Kyuhsu on the Q1W maritime patrol bomber and K11W carrier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commonwealth Aircraft Corporation
The Commonwealth Aircraft Corporation (CAC) was an Australian aircraft manufacturer. The CAC was established in 1936, to provide Australia with the capability to produce military aircraft and engines. History In 1935 the Chief General Manager of BHP, Essington Lewis, visited Europe and formed the view that war was probable. On his return to Australia, concerned at the lack of manufacturing capabilities there and at the possibility of aircraft not being available from 'traditional' (i.e. British) sources during wartime, he commenced a lobbying campaign to convince the Government of Australia to establish a modern aircraft industry. The government required little persuasion and encouraged negotiations between a number of Australian companies. The outcome of these negotiations, begun in August 1935, was the formation of CAC the following year. Initially the companies involved were BHP, General Motors-Holden and Broken Hill Associated Smelter. These were joined by Imperial Chemical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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