|
Oerlikon FF
The FF were a series of 20mm autocannon introduced by Oerlikon in the late 1920s. The name comes from the German term ''Flügel Fest'', meaning ''wing mounted, fixed'', being one of the first 20mm guns to be small and light enough to fit into a fighter aircraft's wing. The FF series inspired many 20mm cannon used in World War II, including the Hispano-Suiza HS.404 (adopted by the French, British and U.S. forces), the German MG FF, and the Japanese IJNAS's Type 99 cannon. Design The basic design was based on the original Oerlikon 20 mm cannon, in turn based on the German Empire's Becker 20 mm cannon of World War I. In the post-war period, Oerlikon had developed the original design to produce three autocannons with increasingly powerful rounds; the original model, later known as the "F", used the Becker 20x70mm round, the newer "L" model used a 20x100 round, and finally the "S" model used a 20x110. All of these weapons used the API blowback operational principle. In 1935 Oerlikon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 99 Cannon
The Type 99 Mark 1 machine gun and Type 99 Mark 2 machine gun were Japanese versions of the Oerlikon FF and Oerlikon FFL autocannons respectively. They were adopted by the Imperial Japanese Navy (IJN) in 1939 and served as their standard aircraft autocannon during World War II. Adoption In 1935, officers in the Imperial Japanese Navy began to investigate 20 mm automatic cannon as armament for future fighter aircraft.Robert C. Mikesh, ''Zero'', Motorbooks USA, 1994. Their attention was drawn to the family of aircraft autocannon manufactured by Oerlikon, the FF, FFL and FFS. These all shared the same operating principle, the advanced primer ignition blowback mechanism pioneered by the Becker cannon, but fired different ammunition: 20×72RB, 20×101RB, and 20×110RB, respectively. Following the import and evaluation of sample guns, the Imperial Japanese Navy decided in 1937 to adopt these weapons. To produce the Oerlikon guns, a group of retired Navy admirals created a new ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cartridge (firearms)
A cartridge, also known as a round, is a type of pre-assembled firearm ammunition packaging a projectile ( bullet, shot, or slug), a propellant substance ( smokeless powder, black powder substitute, or black powder) and an ignition device ( primer) within a metallic, paper, or plastic case that is precisely made to fit within the barrel chamber of a breechloading gun, for convenient transportation and handling during shooting. Although in popular usage the term "bullet" is often used to refer to a complete cartridge, the correct usage only refers to the projectile. Military and commercial producers continue to pursue the goal of caseless ammunition. Some artillery ammunition uses the same cartridge concept as found in small arms. In other cases, the artillery shell is separate from the propellant charge. A cartridge without a projectile is called a '' blank''; one that is completely inert (contains no active primer and no propellant) is called a '' dummy''; one that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
API Blowback Firearms
An application programming interface (API) is a connection between computers or between computer programs. It is a type of software interface, offering a service to other pieces of software. A document or standard that describes how to build such a connection or interface is called an ''API specification''. A computer system that meets this standard is said to ''implement'' or ''expose'' an API. The term API may refer either to the specification or to the implementation. In contrast to a user interface, which connects a computer to a person, an application programming interface connects computers or pieces of software to each other. It is not intended to be used directly by a person (the end user) other than a computer programmer who is incorporating it into software. An API is often made up of different parts which act as tools or services that are available to the programmer. A program or a programmer that uses one of these parts is said to ''call'' that portion of the API. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft Guns
An aircraft ( aircraft) is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or the dynamic lift of an airfoil, or, in a few cases, direct downward thrust from its engines. Common examples of aircraft include airplanes, rotorcraft (including helicopters), airships (including blimps), gliders, paramotors, and hot air balloons. Part 1 (Definitions and Abbreviations) of Subchapter A of Chapter I of Title 14 of the U. S. Code of Federal Regulations states that aircraft "means a device that is used or intended to be used for flight in the air." The human activity that surrounds aircraft is called ''aviation''. The science of aviation, including designing and building aircraft, is called ''aeronautics.'' Crewed aircraft are flown by an onboard pilot, whereas unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers. Aircraft may be classified by different criteria, such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oerlikon-Contraves
Rheinmetall Air Defence AG is a division of German armament manufacturer Rheinmetall, created when the company's Oerlikon Contraves unit was renamed on 1 January 2009 and integrated with Rheinmetall's other air-defence products. Oerlikon Contraves was a Swiss anti-aircraft artillery manufacturer famous for its adaptation of the 1916 20 mm Becker as the Oerlikon 20 mm autocannon design, which was used in the Second World War and remains in use. Copies and derivatives of these designs were made by German, French, British, and Japanese weapon manufacturers. Oerlikon Contraves was purchased by Rheinmetall in 1999. , Rheinmetall Air Defence had around 1,050 employees at locations in Switzerland, Germany, Italy, and Canada. The group's sales were about . History Oerlikon's earliest predecessor was Schweizerische Werkzeugmaschinenfabrik Oerlikon, founded in the Oerlikon district of Zürich, Switzerland in 1906. In 1923 it acquired a factory in Germany. It entered the anti-airc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of API Blowback Firearms
This is a list of Blowback (firearms)#Advanced primer ignition (API) blowback, advanced primer ignition blowback firearms (API). Assault Rifles Anti Tank Rifles Grenade Launchers Machine Guns Submachine Guns Shotguns References {{Reflist Firearm actions Lists of firearms, API blowback ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Autocannon
Autocannons are automatic guns with calibers of to . There are many types, including chain guns, gast guns, revolver cannons, and rotary cannons. They are being used as military aircraft main guns, naval guns, anti-aircraft weapons, infantry fighting vehicle main guns and are occasionally found on reconnaissance vehicles like the LAV-25. General autocannons Revolver cannons Rotary cannons See also *Gatling gun The Gatling gun is a rapid-firing multiple-barrel firearm invented in 1861 by Richard Jordan Gatling of North Carolina. It is an early machine gun and a forerunner of the modern electric motor-driven rotary cannon. The Gatling gun's operatio ... Citations Bibliography * {{DEFAULTSORT:Autocannon Lists of artillery Lists of weapons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MG 151 Cannon
The ''Maschinengewehr'' (MG) 151 is a belt-fed autocannon for aircraft use, developed in Nazi Germany from 1934 to 1940 and produced by Waffenfabrik Mauser during World War II. It was originally produced in 15.1 mm caliber from 1940, with a 15×96mm cartridge, but due to demand for higher effect against aircraft, especially with the introduction of mine shells for the 20 mm MG-FF/M aircraft cannon, the design was rechambered to 20 mm caliber in 1941, using a newly developed 20×82mm cartridge which traded projectile velocity for explosive power. The initial 15 mm variant then became known as the MG 151/15, with the new 20 mm variant becoming the MG 151/20. The MG 151/20 cannon was widely used on German Luftwaffe combat aircraft throughout World War II, mainly as offensive armament, but also seeing some use as defensive guns. Existing MG 151/15 guns saw use as aircraft armament throughout the war, albeit more limited compared to the MG 151/20, but also as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mine Shell
A mine shell (from , "mine shot") or high-explosive, high-capacity (HEHC) in British military nomenclature, is a military explosive shell type characterized by thin (usually steel) shell walls which allow a much higher explosive content than standard high-explosive shells of the same caliber, trading a higher pressure wave effect against high-explosive shells' larger fragmentation effect and better penetration of armoured targets. Mine shells were originally developed during the mid- to late 1800s against fortresses before the introduction of rebar; reinforced fortresses had made the original use of the type obsolete around World War I, but they were given a new role against aircraft during World War II. Effect, construction and use The mine shell is a more explosive version of the common high-explosive and high-explosive fragmentation shells, relying on inflicting damage primarily through the blast (pressure wave) alone rather than the higher fragmentation but less blas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ikaria Werke
Ikaria, also spelled Icaria (; ), is a Greece, Greek island in the Aegean Sea, 10 nautical miles (19 km) southwest of Samos. Administratively, Ikaria forms a separate municipality within the Ikaria (regional unit), Ikaria regional unit, which is part of the North Aegean modern regions of Greece, region. The principal town of the island and seat of the municipality is Agios Kirykos. The historic capitals of the island include Oenoe (Icaria), Oenoe and Evdilos. According to tradition, it derives its name from Icarus, the son of Daedalus in Greek mythology, who was believed to have fallen into the sea nearby and to have been buried on the island. Geography and climate Ikaria is one of the middle islands of the northern Aegean Sea, Aegean, in area with of coastline and a population of 8,312 inhabitants. The topography is a contrast between verdant slopes and barren steep rocks. The island is mountainous for the most part. It is traversed by the Aetheras range, whose highe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas-operated Reloading
Gas-operation is a system of operation used to provide energy to operate locked breech, autoloading firearms. In gas-operation, a portion of high-pressure gas from the cartridge being fired is used to power a mechanism to dispose of the spent case and insert a new cartridge into the chamber. Energy from the gas is harnessed through either a port in the barrel or a trap at the muzzle. This high-pressure gas impinges on a surface such as a piston head to provide motion for unlocking of the action, extraction of the spent case, ejection, cocking of the hammer or striker, chambering of a fresh cartridge, and locking of the action. History The first mention of using a gas piston in a single-shot breech-loading rifle comes from 1856, by the German Edward Lindner who patented his invention in the United States and Britain. In 1866, Englishman William Curtis filed the first patent on a gas-operated repeating rifle but subsequently failed to develop that idea further. Between 1883 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marc Birkigt
Marc Birkigt (8 March 1878, Geneva – 15 March 1953, Versoix) was a Swiss engineer, automotive and aviation pioneer, and co-founder of Hispano-Suiza in 1904. He lived in Barcelona, Spain when he was hired by Emilio de la Cuadra in 1898 to work as an automobile engineer in Cuadra's firm La Cuadra. After several bankruptcies and changes in ownership, the firm was reborn in 1904 as the luxury automobile company Hispano-Suiza with Birkigt as chief engineer. Later he co-founded the Dewoitine company along with Émile Dewoitine.Gens de chez nous', Aisne Council, France (in French). Birkigt was nominated for the Car Engineer of the Century prize for the luxurious Hispano-Suiza H6 car in the 1920s. He also won fame for the aircraft engines and guns he designed as chief engineer at Hispano-Suiza, the former including the liquid-cooled V8 engine that powered the famous French SPAD VII and SPAD XIII World War I fighters, and the British Sopwith Dolphin and S.E. 5a, whilst in the fiel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
