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Nakajima Ki-43
The Nakajima Ki-43 ''Hayabusa'' (, "Peregrine falcon", "Army Type 1 Fighter" ) is a single-engine land-based tactical fighter used by the Imperial Japanese Army Air Service in World War II. The Allied reporting name was "Oscar", but it was often called the "Army Zero" by American pilots because it bore a certain resemblance to the Mitsubishi A6M Zero, the Imperial Japanese Navy's counterpart to the Ki-43. Both aircraft had generally similar layout and lines, and also used essentially the same Nakajima Sakae radial engine, with similar round cowlings and bubble-type canopies (the ''Oscar'''s being distinctly smaller and having much less framing than the A6M). While relatively easy for a trained eye to tell apart with the "finer" lines of the Ki-43's fuselage – especially towards the tail – and more tapered wing planform; in the heat of battle, given the brief glimpses and distraction of combat, Allied aviators frequently made mistakes in enemy aircraft identification in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hideo Itokawa
was a pioneer of Japanese rocketry, popularly known as "Dr. Rocket," and described in the media as the father of Japan's space development. The near-Earth asteroid 25143 Itokawa was named in honor of Itokawa, and is notable as the target of the ''Hayabusa'' mission. Biography Born in Tokyo, Itokawa skipped grades in school and graduated from the Tokyo Imperial University in 1935, having majored in aeronautical engineering. In 1941, he became an assistant professor of the Imperial University of Tokyo. During World War II, he was involved in designing aircraft at the Nakajima Aircraft Company and designed the Nakajima Ki-43 ''Hayabusa'' ("Peregrine Falcon"; Allied reporting name "Oscar") fighter. Itokawa became a full professor in 1948. In 1955 Itokawa worked on the Pencil Rocket for Japan's space program. He retired from his post at the university in 1967 and established an institute. Itokawa wrote 49 books, and was a best-selling author. Topics that Itokawa became interes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supercharger
In an internal combustion engine, a supercharger compresses the intake gas, forcing more air into the engine in order to produce more power for a given displacement. The current categorisation is that a supercharger is a form of forced induction that is mechanically powered (usually by a belt from the engine's crankshaft), as opposed to a turbocharger, which is powered by the kinetic energy of the exhaust gasses. However, up until the mid-20th century, a turbocharger was called a "turbosupercharger" and was considered a type of supercharger. The first supercharged engine was built in 1878, with usage in aircraft engines beginning in the 1910s and usage in car engines beginning in the 1920s. In piston engines used by aircraft, supercharging was often used to compensate for the lower air density at high altitudes. Supercharging is less commonly used in the 21st century, as manufacturers have shifted to turbochargers to reduce fuel consumption and/or increase power outputs. Des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nakajima Ki-43-II , a Super Formula and Super GT car racing team
{{disambiguation, geo ...
is a Japanese name. It is also sometimes romanized as Nakashima and sometimes written as . It may refer to: Places * Nakashima District, Aichi, former district in Japan, now part of Inazawa, Aichi. * Nakajima, Ehime, former town in Japan * Nakajima, Fukushima, a village in Japan * Nakajima, Ishikawa, former town in Japan Other uses * Nakajima (surname), a Japanese surname * Nakajima Aircraft Company, a prominent Japanese aircraft manufacturer throughout World War II * Nakajima USA, a plush toy company * Nakajima Racing Nakajima Planning Co.,Ltd, racing as Nakajima Racing, is a Super Formula and Super GT team organized and founded by Satoru Nakajima in 1983. The team has fielded four championship winners in the Formula Nippon racing series: Tom Coronel, Toranos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vehicle Armour
Military vehicles are commonly armoured (or armored; see spelling differences) to withstand the impact of shrapnel, bullets, shells, rockets, and missiles, protecting the personnel inside from enemy fire. Such vehicles include armoured fighting vehicles like tanks, aircraft, and ships. Civilian vehicles may also be armoured. These vehicles include cars used by officials (e.g., presidential limousines), reporters and others in conflict zones or where violent crime is common. Civilian armoured cars are also routinely used by security firms to carry money or valuables to reduce the risk of highway robbery or the hijacking of the cargo. Armour may also be used in vehicles to protect from threats other than a deliberate attack. Some spacecraft are equipped with specialised armour to protect them against impacts from micrometeoroids or fragments of space debris. Modern aircraft powered by jet engines usually have them fitted with a sort of armour in the form of an aramid composite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allies Of World War II
The Allies, formally referred to as the United Nations from 1942, were an international military coalition formed during the Second World War (1939–1945) to oppose the Axis powers, led by Nazi Germany, Imperial Japan, and Fascist Italy. Its principal members by 1941 were the United Kingdom, United States, Soviet Union, and China. Membership in the Allies varied during the course of the war. When the conflict broke out on 1 September 1939, the Allied coalition consisted of the United Kingdom, France, and Poland, as well as their respective dependencies, such as British India. They were soon joined by the independent dominions of the British Commonwealth: Canada, Australia, New Zealand and South Africa. Consequently, the initial alliance resembled that of the First World War. As Axis forces began invading northern Europe and the Balkans, the Allies added the Netherlands, Belgium, Norway, Greece, and Yugoslavia. The Soviet Union, which initially had a nonaggression pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ho-103 Machine Gun
The Type 1 machine gun (Type (designation), signifying its year of adoption, 1941) was a Japanese aircraft-mounted heavy machine gun widely used during World War II. It was also known as the Ho-103. The weapon itself was largely based on the American .50-caliber (12.7 mm) M2 Browning heavy machine gun, while the design of its ammunition was initially sourced from various Italian Breda-SAFAT machine gun, Breda-SAFAT 12.7 mm rounds. Japanese-designed and produced rounds would eventually mostly replace these imported rounds. The Ho-103 achieved a slightly higher rate of fire than the contemporary aircraft-mounted M2 Browning machine gun (AN/M2) by using the smaller, lower velocity semi-rimmed Breda-SAFAT 12.7 mm cartridge. The round was intermediate in length (88 mm) between the WWII German 13 mm calibre MG 131 machine gun, MG 131's ‘short’ 64 mm cartridge, and the ‘long’ 99 mm cartridge of the M2 Browning. A high rate of fire was very des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 89 Machine Gun
Type 89 refers to two unrelated Imperial Japanese Army aircraft machine guns. Its Imperial Japanese Navy Air Service, Imperial Japanese Navy counterparts are the Type 97 aircraft machine gun, Type 97 machine gun (fixed), and Type 92 machine gun, Type 92 machine gun (a Lewis gun copy). Type 89 fixed The first machine gun is a recoil-operated, licensed copy of the Vickers machine gun, Vickers Class E machine gun re-chambered to 7.7x58mmSR Type 89 cartridge, it is referred to as the "fixed type". It was used in synchronized applications in fighter cowls and in wing gun applications. It was Belt (firearm), belt-fed, using a steel link disintegrating belt. The fixed Type 89 was used in the Nakajima Ki-27, Nakajima Ki-43, Ki-43, early Nakajima Ki-44, Ki-44 fighters, the Mitsubishi Ki-30 and Mitsubishi Ki-51, Ki-51 light bombers, the Kawasaki Ki-32 light bomber and various others. Communist forces used some ex-Japanese Type 89s during the Korean War. Type 89 flexible type The s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cowling
A cowling is the removable covering of a vehicle's engine, most often found on automobiles, motorcycles, airplanes, and on outboard boat motors. On airplanes, cowlings are used to reduce drag and to cool the engine. On boats, cowlings are a cover for an outboard motor. In addition to protecting the engine, outboard motor cowlings need to admit air while keeping water out of the air intake. Etymology "Cowling" comes from "cowl", which originated from Middle English coule, from Old English cūle, from earlier cugele (“hood, cowl”). This, in turn, came from Ecclesiastical Latin cuculla (“monk's cowl”), from Latin cucullus (“hood”), of uncertain origin. In aviation In aviation, a cowling may be used for drag reduction or engine cooling by directing airflow. Examples in aviation include the NACA cowling and Townend ring. On an airplane, the cowling may also cover part of the fuselage, the nacelles, the engine mount and part of the cockpit.Aviation Machinist's Mates' Manua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synchronization Gear
A synchronization gear (also known as a gun synchronizer or interrupter gear) was a device enabling a single-engine tractor configuration aircraft to fire its forward-firing armament through the arc of its spinning propeller without bullets striking the blades. This allowed the aircraft, rather than the gun, to be aimed at the target. There were many practical problems, mostly arising from the inherently imprecise nature of an automatic gun's firing, the great (and varying) velocity of the blades of a spinning propeller, and the very high speed at which any gear synchronizing the two had to operate. In practice, all known gears worked on the principle of actively triggering each shot, in the manner of a semi-automatic weapon. Design and experimentation with gun synchronization had been underway in France and Germany in 1913–1914, following the ideas of August Euler, who seems to have been the first to suggest mounting a fixed armament firing in the direction of flight (in 191 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manchukuo
Manchukuo, officially the State of Manchuria prior to 1934 and the Empire of (Great) Manchuria after 1934, was a puppet state of the Empire of Japan in Northeast China, Manchuria from 1932 until 1945. It was founded as a republic in 1932 after the Japanese invasion of Manchuria, and in 1934 it became a constitutional monarchy under the ''de facto'' control of Japan. It had limited Diplomatic recognition, international recognition. The area was the homeland of the Manchu people, Manchus, including the emperors of the Qing dynasty. In 1931, Japanese invasion of Manchuria, Japan seized the region following the Mukden Incident. A pro-Japanese government was installed one year later with Puyi, the List of emperors of the Qing dynasty, last Qing emperor, as the nominal regent and later emperor. Manchukuo's government was dissolved in 1945 after the Surrender of Japan, surrender of Imperial Japan at the End of World War II in Asia, end of World War II. The territories claimed by Manc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harbin
Harbin (; mnc, , v=Halbin; ) is a sub-provincial city and the provincial capital and the largest city of Heilongjiang province, People's Republic of China, as well as the second largest city by urban population after Shenyang and largest city by metropolitan population (urban and rural together) in Northeast China. Harbin has direct jurisdiction over nine metropolitan districts, two county-level cities and seven counties, and is the eighth most populous Chinese city according to the 2020 census. The built-up area of Harbin (which consists of all districts except Shuangcheng and Acheng) had 5,841,929 inhabitants, while the total metropolitan population was up to 10,009,854, making it one of the 50 largest urban areas in the world. Harbin, whose name was originally a Manchu word meaning "a place for drying fishing nets", grew from a small rural settlement on the Songhua River to become one of the largest cities in Northeast China. Founded in 1898 with the coming of the C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
