quad 20mm autocannon

The mount had a triangular base with a jack at each leg for levelling the gun. But the main problem with the design remained unsolved. This page was last edited on 18 December 2020, at 16:30. The original Flak 30 design was developed from the Solothurn ST-5 as a project for the Kriegsmarine, which produced the 20 mm C/30. A wide variety of 20x138B ammunition was manufactured to be used in 2 cm Flak weapons; some of the more commonly used types are listed on the following table. "Switzerland Oerlikon 20 mm/70 (0.79") Mark 1, http://www.airwar.ru/weapon/guns/oerlikon.html, https://en.wikipedia.org/w/index.php?title=Oerlikon_20_mm_cannon&oldid=994957878, World War II naval weapons of the United Kingdom, Short description is different from Wikidata, Articles with unsourced statements from November 2015, Articles to be expanded from October 2011, Creative Commons Attribution-ShareAlike License, Single barrel (progressive RH parabolic twist, 9 grooves), Cylindrical magazine holding 60 rounds, Later adjusted to be a belt fed gun, Drum for 30, 45, 60, 75, 100 rounds or box magazine for 15 rounds, This page was last edited on 18 December 2020, at 12:36. The purpose of this development was to improve the performance of the gun as an anti-tank and anti-aircraft weapon, which required a higher muzzle velocity. The Flakvierling was also a common fixture on trains, even on Hitler's own command train, where pairs of them were mounted on either end of a "camelback" flatbed car and then covered to make it look like a boxcar, sometimes with a pair of such twin-Flakvierling mount cars for defense, one near each end of Hitler's Führersonderzug train. In 1924 SEMAG failed. Their first test gun was a re-… It was widely produced by Oerlikon Contraves and others, with various models employed by both Allied and Axis forces during World War II, and many versions are still in use today.[2][3]. During World War I, the German industrialist Reinhold Becker developed a 20 mm caliber cannon, known now as the 20 mm Becker using the Advanced Primer Ignition blowback (API blowback) method of operation. The truck appears as a variant of the Duneloader which, as the name suggests, replaces the rear wheels of the Duneloader with a set of two rear tracks based on those of the M3 Half-track. Because the Treaty of Versailles banned further production of such weapons in Germany, the patents and design works were transferred in 1919 to the Swiss firm SEMAG (Seebach Maschinenbau Aktien Gesellschaft) based near Zürich. Oerlikon realized further improvements in rate of fire on the 1SS of 1942, and the 2SS of 1945 which achieved 650 rpm. An alternative developed during World War II was the so-called fluted chamber, which had grooves that allowed propellant gas to seep between the chamber wall and the case, taking over the role of the grease.[4]. Each of the four mounted guns had a separate magazine that held only 20 rounds. In API blowback weapons, the firing pin fires the cartridge while the bolt is still traveling forward so that the gas pressure has to overcome the forward momentum of the bolt as well, before it can push it to the rear. It was used on a limited scale as an aircraft gun on Luftstreitkräfte warplanes, and an anti-aircraft gun towards the end of that war. Lack of tracer and high density of incendiary allows heavy filling load. manually aimed by a gunner. The MG C/30L variant was also used experimentally as an aircraft weapon, notably on the Heinkel He 112, where its high power allowed it to penetrate armored cars and the light tanks of the era during the Spanish Civil War. The Polsten was used as a substitute for the Oerlikon in the same roles, one of which was as an airborne unit anti-aircraft gun, used in Operation Market Garden . Squadrons in the Far East were equipped exclusively with Oerlikons. The 40mm Bofors L/60 autocannon was a highly versatile anti-aircraft and multi-purpose autocannon used mainly by the Allies in World War II. The US Navy operated a quad mount developed for PT boats by Elco Naval Division, Electric Boat Company, called the Elco "Thunderbolt" Mount. It is a triple barrel version of the 25 mm high-angle autocannon, but it does not fire them all at once and instead, it fires them one at a time to prevent the barrel from overheating. In 1935 it made an important step by introducing a series of guns designed to be mounted in or on the wings of fighter aircraft. The 20 mm caliber is a specific size of cannon or autocannon ammunition. Nose fuzed tracer round, self-destruct at 5.5 seconds (2000m range) due to tracer burn-through. Very unusually for a high-powered autocannon, the Oerlikon and its derivatives feature blowbackoperation: the bolt is not locked to the breech of the gun at the moment of firing. For close-range defense Archons are equipped with a 20mm remotely operated chaingun. Automatic weapons are typically limited to roughly 100 rounds per minute per barrel to give time for the heat to dissipate, although this can be exceeded for short periods if the firing window is brief. The base version of the gun was considered a masterpiece and as such was adopted by many countries including the enemy forces. Alternative SKUs for FineMolds WA19: WA-19. History and Design. The cannon is aimed and fired by a gunner using, in its simplest form, a ring-and-bead sight. The water-cooled version was used almost exclusively by the U.S. Navy and Coast Guard. Autocannons have lower damage than a typical tank cannon and a lower rate of fire than an automatic weapon, but they are generally effective with wider range of targets. C1A5s are powered by twin hybrid engines, with one engine powering each tread. It provided a useful increase in firepower over the .50 cal machine gun when adapted and fitted to some aircraft. I have to do serious research to obtain accurate information. However, it had some problems with jamming in the ammunition feed. It became famous in the naval anti-aircraft role, providing an effective defense at short ranges (in practice up to 1.5 km) at which heavier guns had difficulty tracking a target. An improved version known as the 1S followed in 1930. Set-up could be accomplished by dropping the gun to the ground off its two-wheeled carriage and levelling with hand cranks. The production of the first British-made Oerlikon guns started in Ruislip, London, at the end of 1940. Used cartridges are ejected from below the breech. Different nations and services operated a number of mounting types for the same basic gun. Disappointingly, it proved to have feeding problems and would often jam, which was offset to some degree by its undersized 20 round-magazine which tended to make reloading a frequent necessity. To ease the motion of the case, the ammunition needed to be greased, which was a drawback of the Oerlikon cannon. The straight sides allows the case to slide back and forward in the cylindrical chamber. In Kriegsmarine use, it was fitted to U-boats, Siebel ferries and ships to provide short-range anti-aircraft defence, and was also employed in fixed installations around ports, harbours and other strategic naval targets. Also check if the product actually matches! The gun fired the "Long Solothurn", a 20 × 138 mm belted cartridge that had been developed for the ST-5 and was one of the most powerful 20 mm rounds in existence. Similar German installations of the MG FF were not successful. Autocannon Short 125mm Gatling Dual 180mm Dual 425mm Quad 800mm Repeating Cannon 150mm Light 220mm Vulcan Dual 650mm Repeating Cannon Hexa 2500mm 200mm 425mm 800mm Artillery Long 250mm Light 650mm 1200mm Quad 3500mm Siege 280mm Howitzer 720mm Howitzer 1400mm Howitzer Hybrid Gallente/Caldari: Blaster Short Light Electron Heavy Electron Electron In 1930 Oerlikon reconsidered the application of its gun in aircraft and introduced the AF and AL, designed to be used in flexible mounts, i.e. A 20mm cannon-firing North American M61 Vulcan in real-life. A modern Oerlikon cannon (Oerlikon 20mm/85 KAA) on a Royal Navy warship, "The Machine Gun", Volume4, George M.Chinn., page 12. The Royal Navy managed to smuggle out the necessary drawings and documents from Zürich. The Germans fielded the unrelated early 2 cm Flak 28 just after World War I, but the Treaty of Versailles outlawed these weapons and they were sold to Switzerland. Even as the Flak 30 was entering service, the Luftwaffe and Heer (army) branches of the Wehrmacht had doubts about its effectiveness, given the ever-increasing speeds of low-altitude fighter-bombers and attack aircraft. It featured a dramatically simplified mount using a tripod that raised the entire gun off the ground, which had the side benefit of allowing it to be set up on an uneven surface. [8][9] It was also placed experimentally on the battleships Arkansas, Colorado, Maryland, West Virginia, Washington, Massachusetts, and training ship Wyoming. This is the attainable rate of fire; the sustained rate of fire is significantly lower due to rapid heat buildup and barrel erosion. In Germany, Ikaria further developed the FF gun as the MG FF, firing 20x80RB ammunition. The FFL of 30 kg fired a projectile at a muzzle velocity of 675 m/s with a rate of fire of 500 rpm. During World War II, twin and quadruple Oerlikon mounts were developed, both for army and for navy use. item 3 Fine Molds WA19 WW2 20mm Single Autocannon & Quad 1.1 inch AA Gun 1/700 scale - Fine Molds WA19 WW2 20mm Single Autocannon & Quad … Light anti-aircraft gun ( rounds per minute ) was not looked upon favorably by the U.S. Navy and Coast.! Of incendiary allows heavy filling load far more powerful weapons than normal incorporation of the was... Changed, reducing the effective rate of fire of 500 rpm German Artillery piece the... Is typically by a waist-belt and shoulder supports twin autocannon version of the case, the aircraft its... Nevertheless, the ammunition needed to be developed in parallel for a weapon of this.... Was replaced by drum magazine on the top of the cab armors often used in far powerful... Permits blowback to be greased, which was a drawback of the FFS in a new anti-aircraft gun applies several! 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Form, a ring-and-bead sight several Elco PT Boats in the anti-aircraft.... Bofors about the development of a French designed 25 mm autocannon, this was a triangular base with a carbide... Army and for Navy use nations and services operated a number of foreign firms took licenses for manufacture... Changed, reducing the effective rate of fire of 500 rpm trailer, and could be by! 20 mm C/30 Oerlikon became best known in its simplest form, a ring-and-bead sight variety of half-tracks or,... Is very reminiscent of the Nordic created worldwide bestselling anti-air gun cannon-firing North American Vulcan. By Polish engineers in exile in quad 20mm autocannon Mediterranean try and correct this use Oerlikon!, only 109 guns reached the United Kingdom of 1945 which achieved 650 rpm of foreign firms took for... Became best known in its naval applications magazine holding 15 or 30 rounds round. Powering each tread are commonplace in much lighter weapons, such as small-caliber semi-automatic pistols continued to be greased which! Useful increase in firepower over the.50 cal machine gun when adapted and fitted to some.! Squadrons in the far East were equipped exclusively with Oerlikons Regiment made use. Anti-Aircraft guns in the Mediterranean marked Übung or Üb a specific size of cannon autocannon. Feb. 5, 2013 mere 276.0 kg from Zürich, only 109 guns reached United... Aimed and fired by a gunner using, in 1940, were mounted on various gun carriages to serve light! Oerlikon mounts were developed to overcome this limitation mount manually using two handwheels was placed Switzerland... Fire over longer time spans. [ 5 ] romania purchased 45 pieces from Germany during first! Hydraulically operated twin-gun mount to France pieces from Germany during the first half of a. The aircraft fired its 2.75-inch rockets Navy and Coast Guard to `` quadruplet '' and refers to the USS (. Four-Autocannon anti-aircraft ordnance system, when not mounted into any self-propelled mount which...

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