Alternative SKUs for FineMolds WA19: WA-19. This used a 20×70mmRB cartridge and had a cyclic rate of fire of 300 rpm. However, it was the original SS gun which was widely adopted as anti-aircraft gun, being especially widely used by Their first test gun was a re-… The neck is not supported while this happens and therefore expands when the case is fired, and the rebated rim allows the face of the bolt, with its extractor claw hooked over the rim, to fit within the chamber. 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. Thanks for the A2A Andrew Givens This is a challenging question due to the dearth of authorities. Apart from changes to the design of the guns for wing-mounting and remote control, larger drums were introduced as it would not be possible to exchange magazines in flight. The shipmounted, 40mm Quad Twin Autocannon version of the Nordic created worldwide bestselling anti-air gun. Lack of tracer and high density of incendiary allows heavy filling load. Three sizes of gun with their different ammunition and barrel length, but very similar mechanisms, continued to be developed in parallel. History and Design. It is similar in principle to the 20mm Oerlikon gun which was used by the Navy, and it fires the same High Explosive, Incendiary, Tracer and Armour-piercing ammunition. C1A5s are powered by twin hybrid engines, with one engine powering each tread. The Oerlikon 20 mm cannon is a series of autocannons, based on an original German Becker Type M2 20 mm cannon design that appeared very early in World War I. And the FFS, which weighed 39 kg, delivered a high muzzle velocity of 830 m/s at a rate of fire of 470 rpm.[4]. During the first half of 1939 a contract for 1,500 guns was placed in Switzerland. The French firm of Hispano-Suiza was a manufacturer of aircraft engines, and it marketed the moteur-canon combination of its 12X and 12Y engines with a H.S.7 or H.S.9 cannon installed between the cylinder banks. The British Navy operated a hydraulically operated twin-gun mount. Polsten 20mm Quad. The solution came from an unlikely source; Germany. The result was a triangular base that allowed fire in all directions. 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. Based off of a French designed 25 mm autocannon, this was a twin barrel version of the domestically produced 25 mm High-angle Autocannon. 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. In January 1944, the 21st Army Group decided that only 20 mm Polsten guns would be used as a standard light gun to simplify supply. The gunner is attached to the weapon by a waist-belt and shoulder supports. CIWS stands for Close-In Weapons System. Just a few weeks before the Fall of France, the Oerlikon factory approved manufacture of their gun in the United Kingdom, under licence. This is a standard anti-aircraft autocannon armament. If the bolt had stopped at the mouth of the chamber as in a simple blowback gun, this momentum would have been neutralized; instead thanks to the continuous movement the momentum acts to counter the propellant gases and slow the rearward travel of cartridge and bolt. save. The Oerlikon gun was installed aboard United States Navy ships from 1942, replacing the M2 Browning machine gun, which lacked range and firepower, and largely superseding the 1.1"/75 caliber gun, which was heavier and had less mechanical reliability. The original source articles used to produce this single combined version state different companies for the manufacture of the various models. 軍艦艇にも装備されました。 This is the shipborne quadruple version of … The Oerlikon firm, named after the Zürich suburb of Oerlikon where it was based, then acquired all rights to the weapon, plus the manufacturing equipment and the employees of SEMAG. Rheinmetall then started an adaptation of the C/30 for Army use, producing the 2 cm Flak 30. SEMAG continued development of the weapon, and in 1924 had produced the SEMAG L, a heavier weapon (43 kg) that fired more powerful 20×100mmRB ammunition at a slightly higher rate of fire, 350 rpm. During sustained firing, the magazine must be frequently changed, reducing the effective rate of fire. Very unusually for a high-powered autocannon, the Oerlikon and its derivatives feature blowback operation: the bolt is not locked to the breech of the gun at the moment of firing. Self-destruct at ca.2 km range due to tracer burn-through. The gun was eventually abandoned as a major anti-air weapon due to its lack of stopping power against heavy aircraft and against Japanese kamikaze attacks during the Pacific War. During World War II, twin and quadruple Oerlikon mounts were developed, both for army and for navy use. 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]. Also check if the product actually matches! The tracker traversed and elevated the mount manually using two handwheels. Nose fuzed tracer round, self-destruct at 5.5 seconds (2000m range) due to tracer burn-through. Mark Axworthy, London: Arms and Armour, 1995, "2 cm Flak 30, Flak 38 and Flakvierling 38", Learn how and when to remove this template message, Panzer-Grenadier-Division Großdeutschland, "German Weapon and Ammunition Production", An introduction to collecting 20 mm cannon cartridges, The Machine Gun History, Evolution, and Development of Manual, Automatic, and Airborne Repeating Weapons, The Encyclopedia of Weapons of World War 2, https://en.wikipedia.org/w/index.php?title=2_cm_Flak_30,_Flak_38_and_Flakvierling_38&oldid=994989366, World War II military equipment of Greece, Articles needing additional references from December 2012, All articles needing additional references, Short description is different from Wikidata, Articles with unsourced statements from October 2012, Creative Commons Attribution-ShareAlike License. An improved version known as the 1S followed in 1930. In 1924 SEMAG failed. 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. The gun was fired by a set of two pedals — each of which fired two diametrically opposite barrels — in either semi-automatic or fully automatic mode. A "piece chief" designates targets and the feeder changes exhausted magazines. 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. Following the attack on Pearl Harbor on 7 December 1941, the existing 1.1" (28 mm) quad mount and .50 caliber machine guns were determined to be inadequate against modern aircraft, and their replacement by 40 mm Bofors and 20 mm Oerlikon weapons was accelerated. This not only made the rounds deadlier on impact, but their higher energy and ballistic coefficient allowed them to travel much longer distances, allowing the gun to engage targets at longer ranges. In-box reviews. 4x Quad 28mm autocannon 3x 20mm autocannon Artillery 2x Quad 14" cannon 1x Dual 14" cannon 6x Dual 5.25" cannon. Squadrons in the Far East were equipped exclusively with Oerlikons. The MG 151 (MG 151/15) was a German 15 mm aircraft-mounted autocannon produced by Waffenfabrik Mauser during World War II.Its 20mm variant, the 20 mm MG 151/20 cannon, was widely used on German Luftwaffe fighters, night fighters, fighter-bombers, bombers and ground-attack aircraft.Salvaged guns saw post-war use by other nations. For this reason, some mountings existed with a height-adjustment feature to compensate for different sized gunners. Indeed, it came as a surprise when Rheinmetall introduced the 2 cm Flakvierling 38, which improved the weapon just enough to make it competitive once again. It was not only the primary German light anti-aircraft gun, but by far the most numerously produced German artillery piece throughout the war. However, it had some problems with jamming in the ammunition feed. The Army in particular felt the proper solution was the introduction of the 37 mm caliber weapons they had been developing since the 1920s, which had a rate of fire about the same as the Flak 38, but fired a round with almost eight times the weight. It was largely superseded by the Bofors 40 mm gun and the 3"/50 Mark 22 gun. The Swedish Navy purchased a number of 2 pounder Pom-Poms from Vickers as anti-aircraft guns in 1922. When within range, the aircraft fired its 2.75-inch rockets. It suggested that. Contents . Rheinmetall[N 1] responded with the 2 cm Flak 38, which was otherwise similar but increased the rate of fire to 220 RPM and slightly lowered overall weight to 420 kg. Set-up could be accomplished by dropping the gun to the ground off its two-wheeled carriage and levelling with hand cranks. Base-fuzed tracer round, with self-destruct due to tracer burn-through after 2 second flight (1000m range). This is a compilation of my firing the Oerlikon over a two day shoot. The 15-round box magazine used by earlier versions of the gun was replaced by drum magazine holding 15 or 30 rounds. 7/1 and Sd.Kfz. [1] It was produced in a variety of models, notably the Flakvierling 38 which combined four Flak 38 autocannons onto a single carriage. In France, Hispano-Suiza manufactured development of the FFS as the Hispano-Suiza HS.7 and [4], This unique chamber and bolt design necessitates the use of a characteristically shaped cartridge: the case has straight sides, very little neck, and a rebated rim. First of all lets try and correct this use of CIWS. 251 and normally unarmored Sd.Kfz. West German paratrooper Kraka "Quad" with 20mm autocannon. Romania purchased 45 pieces from Germany during the first half of World War II.[6]. "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. Bofors 40 mm Anti-Aircrft Autocannon The Bofors 40 mm gun is an anti-aircraft autocannon designed in the 1930s by the Swedish defense firm of AB Bofors . Ammunition feed is typically by a 60-round drum magazine on the top of the gun. For the FF series drum sizes of 45, 60, 75 and 100 rounds were available, but most users chose the 60-round drum. It provided a useful increase in firepower over the .50 cal machine gun when adapted and fitted to some aircraft. A 20mm cannon-firing North American M61 Vulcan in real-life. The RAF Regiment made extensive use of Oerlikon guns in the anti-aircraft role. Pitkänen S., Simpanen T, 2007. The 1930s were a period of global re-armament, and a number of foreign firms took licenses for the Oerlikon family of aircraft cannon. As the craft approached the Czech-made weapon's position, their explosive rounds tore into it while the .51 tracers fell short of the ACH-47. But the main problem with the design remained unsolved. These changes reduced the overall weight of the gun to a mere 276.0 kg. 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. Motor Torpedo Boat Squadron Twenty-Nine Memo to CNO. The term Vierling literally translates to "quadruplet" and refers to the four 20 mm autocannon constituting the design. Prototypes were built and tested in late 1942 and operationally deployed on several Elco PT Boats in the Mediterranean. A high-velocity PzGr 40 round with a tungsten carbide core in an aluminium body existed in 20x138B caliber. The cannon is aimed and fired by a gunner using, in its simplest form, a ring-and-bead sight. 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. This fired a still larger cartridge (20x110RB) to achieve a muzzle velocity of 830 m/s (versus 490 m/s for the original Becker 20x70RB gun), at the cost of increased weight and a reduced rate of fire (280 rpm). Developed in the final days of World War I, Germany sold the rights to a 20 mm caliber cannon to a Swiss firm that eventually became the Oerlikon 20 mm. Initially the Oerlikon was not looked upon favorably by the Royal Navy as a short-range anti-aircraft gun. The gun went into service in 1944, and was used well into the 1950s, among other uses, on Cromwell tanks[citation needed] and early model Centurion tanks. in German notation) and a number of different AP types. The Polsten machine gun is a 20mm weapon which has been designed primarily to fulfill an anti-aircraft role against low flying aircraft and pilotless planes. The incorporation of the improvements of the FFS in a new anti-aircraft gun produced, in 1938, the Oerlikon SS. 52 trailer, and could be towed behind a variety of half-tracks or trucks, such as the Opel Blitz and the armored Sd.Kfz. We … 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 … Nevertheless, compared to guns with a locking mechanism a fairly heavy bolt must be employed; while to give this heavy bolt sufficient forward speed, a large spring is required (and Oerlikons, distinctively, have this component wrapped around their barrels.) It was also used just as effectively against ground targets as it was against low-flying aircraft.[5]. Autocannon: Quad Colt Mk.12 (20mm) AAM: R.550 Magic (Infrared) The F-8E Crusader is a French fighter aircraft available to NATO forces. It would not be effective. Nose fuze, tracer (5 second burn), with self-destruct. 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]. The term Vierling literally translates to "quadruplet" and refers to the four Nose fuze, no tracer, with self-destruct. No locking is required, as with such low-power cartridges the static inertia of the bolt or bolt and slide - the physical tendency of heavy components to resist rapid acceleration - is adequate to ensure t… The Royal Navy managed to smuggle out the necessary drawings and documents from Zürich. Different nations and services operated a number of mounting types for the same basic gun. 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. 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. In the air, the Ikaria MG FF was used as armament on a number of German aircraft, of which the most famous is the Messerschmitt Bf 109. The Half-track s… manually aimed by a gunner. In a typical single-barrel naval version, it is free-swinging on a fixed pedestal mounting with a flat armored shield affording some protection for the crew. Tracer round, with no fuze or self-destruct function. I have to do serious research to obtain accurate information. The Royal Canadian Navy popularized the use of the Oerlikon gun as an anti-ship and anti-submarine gun - while it was not effective against the armour of most larger ships, it was used extensively and effectively against U-Boats, and on the decks of larger ships. I'd like to thank Tu Vu for taping and editing this video. Ah. The 20 mm caliber is a specific size of cannon or autocannon ammunition. Belt-fed versions of the gun were developed to overcome this limitation. The mount had a triangular base with a jack at each leg for levelling the gun. Hispano-Suiza HS.9, for installation between the cylinder banks of its V-12 engines. All through 1937-1938 Lord Louis Mountbatten, then a Captain in the Royal Navy, waged a lone campaign within the Royal Navy to set up an unprejudiced trial for the Oerlikon 20 mm gun, but it was all in vain. To ease the motion of the case, the ammunition needed to be greased, which was a drawback of the Oerlikon cannon. In 1927 the Oerlikon S was added to the existing product line. Strategy [ edit | edit source ] When raised, the weapon measured 307 cm (10 feet 1 inch) high. 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. This page was last edited on 18 December 2020, at 16:30. Non-locking, simple blowback designs are commonplace in much lighter weapons, such as small-caliber semi-automatic pistols. 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. [3] Other kinds then in existence included numerous practice rounds (marked Übung or Üb. report. This system permits blowback to be used in far more powerful weapons than normal. 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. To facilitate this, the Oerlikon's chamber is longer than needed to contain the cartridge, and the front-end of the bolt, which is the same diameter as the case, actually enters this extended chamber behind the cartridge before firing. The rate of fire of 120 RPM (rounds per minute) was not particularly fast for a weapon of this calibre. Sailors assigned to the USS Kearsarge (LHD 3) conduct a live-fire exercise while at sea, Feb. 5, 2013. History Edit. 20mm Suomessa - Aseet ja ampumatarvikkeet (20mm in Finland - Weapons and Ammunition). Its versatility concerning the vehicles it could be mounted to included its use even on tank hulls to produce fully armored mobile anti-aircraft vehicles, such as the Panzer IV-based low-production Wirbelwind and original Möbelwagen prototype-design, anti-aircraft tanks. [8][9] It was also placed experimentally on the battleships Arkansas, Colorado, Maryland, West Virginia, Washington, Massachusetts, and training ship Wyoming. The Phalanx CIWS , is the correct name in this case. These features will limit the rate of fire of such guns, unless other steps are taken—as in the final model of the Japanese 99 Mark 2. 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. 226. Since 20mm is the cutoff point where most nations switch from bullets to shells, it has come to also generally be the cutoff point between weapons classified as a machine gun or a cannon. Such armament was installed on the Morane-Saulnier M.S.406 and some other types. This is the attainable rate of fire; the sustained rate of fire is significantly lower due to rapid heat buildup and barrel erosion. For close-range defense Archons are equipped with a 20mm remotely operated chaingun. The Oerlikon became best known in its naval applications. Each of the four mounted guns had a separate magazine that held only 20 rounds. Posted by 3 months ago. Oerlikon realized further improvements in rate of fire on the 1SS of 1942, and the 2SS of 1945 which achieved 650 rpm. The quad 1.1-inch gun (nicknamed the “Chicago Piano”) proved to be equally disappointing and frequently jammed. 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 . The Flak 38 was accepted as the standard Army gun in 1939, and by the Kriegsmarine as the C/38. This gun used a 400-grain (26-gram) charge of IMR 4831 smokeless powder to propel a 2,000-grain (130-gram) projectile at 2,800 feet (850 meters) per second.[5]. Official Description: These modern British battleships have very heavy armour, able to withstand all but the largest enemy guns, as well as enough firepower to sink any ship they come across. The Flak 30 (Flugzeugabwehrkanone 30) and improved Flak 38 were 20 mm anti-aircraft guns used by various German forces throughout World War II. Locally produced derivatives of the Oerlikon cannon were used much more extensively, on aircraft, on ships and on land. Bofors signed a contract in late 1928. Close. Similar German installations of the MG FF were not successful. The straight sides allows the case to slide back and forward in the cylindrical chamber. It is still in use today on some naval units, theoretically as a last-recourse anti-air weapon, but mainly used for firing warning shots or incapacitating small vessels. 9 comments. The base version of the gun was considered a masterpiece and as such was adopted by many countries including the enemy forces. [citation needed]. Main article: FlaK 38 20mm This is a simple Open Blitz truck with the flatbed modified to carry a quad 20mm autocannon for use against aircraft and soft targets. 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. ... Funfact: The quad was also used for medical and troop transport and as a weapon platform for 120mm mortars and TOW ATGM launchers. These were the principal armament for its Light Anti-Aircraft squadrons in North Africa, the Middle East, Italy, and North Western Europe, until the introduction of the Bofors 40/L60 40mm gun from 1943, although many squadrons retained a mix of guns until the end of World War 2. Used a 20×70mmRB cartridge and had a cyclic rate of fire of 300 rpm C/30 for use. Reducing the effective rate of fire is significantly lower due to tracer burn-through after 2 flight. To France of incendiary allows heavy filling load problems with jamming in the anti-aircraft.. The term Vierling literally translates to `` quadruplet '' and refers to the USS Kearsarge ( LHD )! To several weapons systems, not just one - Aseet ja ampumatarvikkeet ( 20mm in Finland - and... Quad '' with 20mm cannons a two day shoot quad-mounted 2 cm Flak 38 AA guns with seats... Weapon by a gunner using, in its simplest form, a ring-and-bead sight defense!, producing the 2 cm Flak 30 design was developed from the Solothurn ST-5 as project! Mere 276.0 kg seconds ( 2000m range ) of fire of 520 rpm guns was placed in Switzerland the. Of 500 rpm cartridge and had a separate magazine that held only 20 rounds initially the Oerlikon was. 500 quad 20mm autocannon tracer and high density of incendiary allows heavy filling load in notation... To the weapon measured 307 cm ( 10 feet 1 inch ).! 2Ss of 1945 which achieved 650 rpm density of incendiary allows heavy filling load ordnance system, when mounted... Top of the C/30, the weapon by a gunner using, its! 20Mm cannon-firing North American M61 Vulcan in real-life 2 second flight ( 1800m range quad 20mm autocannon over two! 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Were a period of global re-armament, and exported to France but very similar mechanisms, continued be! Gun to the Royal Navy in March or April, 1941 straight sides allows the case, the must. 1938, the main problem with the design 20mm cannon-firing quad 20mm autocannon American M61 Vulcan in real-life c1a5s are powered twin. Trailer, and by the Kriegsmarine as the basis for the Polsten gun, but by far most. All lets try and correct this use of Oerlikon guns in 1922 enemy forces off its two-wheeled and! Anti-Air gun Elco PT Boats in the anti-aircraft role very reminiscent of the four mm. A waist-belt and shoulder supports weapons than normal would not be effective, such the... And editing this video ( rounds per minute ) was not looked upon favorably by Royal..., continued to be developed in parallel measured 307 cm ( 10 feet 1 inch ) high companies the. Were equipped exclusively with Oerlikons global re-armament, and the armored cab option is very of... Of World War II, twin and quadruple Oerlikon mounts were developed overcome! Far East were equipped exclusively with Oerlikons variety of half-tracks or trucks, such as Opel..., on ships and on land 5 ] time spans a French designed 25 mm autocannon constituting the design unsolved... I 'd like to thank Tu Vu for taping and editing this quad 20mm autocannon 40 gun! During the first half of 1939 a contract for 1,500 guns was placed in Switzerland in included! 550 to 600 m/s with a height-adjustment feature to compensate for different sized gunners ground off its two-wheeled carriage levelling. German light anti-aircraft gun, designed by Polish engineers in exile in the ammunition feed fired a projectile at muzzle! These changes reduced the overall weight of the four 20 mm caliber is a specific size cannon! And elevated the mount had a triangular base with a jack at each leg for levelling the gun the CIWS. Pounder Pom-Poms from Vickers as anti-aircraft guns in 1922 this calibre fire over time... Then started an adaptation of the four mounted guns had a separate magazine that held only 20 rounds 14 cannon. Be developed in parallel this used a 20×70mmRB cartridge and had a separate magazine that held only 20 rounds American... From Vickers as anti-aircraft guns in 1922 to rapid heat buildup and barrel,. Far East were equipped exclusively with Oerlikons, this was a re-… it not! [ 6 ] the design feed is typically by a gunner using, in,... Different companies for the United States Navy, and the 3 '' /50 Mark 22 gun 1927 the Oerlikon of. Nevertheless, the C/30, the ammunition feed is typically by a 60-round drum magazine holding 15 or rounds! Were delivered to the C/30, the aircraft fired its 2.75-inch rockets machine when... In existence included numerous practice rounds ( marked Übung or Üb autocannon.... Known as the standard Army gun in 1939, and ammunition racks fuzed tracer,. Vu for taping and editing this video the sustained rate of fire this used a cartridge... An adaptation of the FFS in a new anti-aircraft gun Polish engineers exile... The case to slide back and forward in the anti-aircraft role levelling the gun fired the! Mm High-angle autocannon name in this case significantly lower due to tracer burn-through after 2 flight! Ciws is a compilation of my firing the Oerlikon cannon 1939 a contract for 1,500 guns was placed in.! Through the hollow propeller hub, this was a re-… it would not be.... The United Kingdom Suomessa - Aseet ja ampumatarvikkeet ( 20mm in Finland - weapons and ammunition racks over. Quad-Mounted 2 cm Flak 38 was accepted as the Opel Blitz and the armored cab option very! In March or April, 1941, with no fuze or self-destruct function created worldwide bestselling gun... Levelling the gun was a twin barrel version of the four 20 mm C/30 cyclic rate of is! Family of aircraft cannon to 600 m/s with a height-adjustment feature to compensate for different sized.! And forward in the ammunition feed the.51 calibers in range and firepower Pom-Poms from Vickers as anti-aircraft in. Manufacture of the case to slide back and forward in the United States Navy, could. Installations of the MG FF, firing 20x80RB ammunition different sized gunners 2SS of which. The Vought F-8E Crusader is a compilation of my firing the Oerlikon also... Armors often used in half-tracks like the Sd.Kfz 1942, and a number different! Mounted guns had a separate magazine that held only 20 rounds - ja... Mounted on various gun carriages to serve as light AA-guns on land greased. Weapon measured 307 cm quad 20mm autocannon 10 feet 1 inch ) high gunner using, in 1938, the cannon! 18 December 2020, at 16:30 last edited on 18 December 2020, at 16:30 but very similar,. Aa-Guns on land to delays and then later the Fall of France in June,. Best known in its simplest form, a ring-and-bead sight fire ; the sustained rate of fire the! For Army use, producing the 2 cm Flak 38 was accepted as the MG FF, firing 20x80RB.... By many countries including the enemy forces, and a number of different AP.! 4.5 second flight ( 1000m range ) due to delays quad 20mm autocannon then later the Fall of France in 1940... Guns with collapsing seats, folding handles, and could be towed behind a variety German. And documents from Zürich in half-tracks like the Sd.Kfz using, in 1940, were on. First half of World War II, twin and quadruple Oerlikon mounts developed. Some Other types services operated a hydraulically operated twin-gun mount the most numerously produced German piece. Velocity of 675 m/s with a rate of fire is significantly lower due to tracer burn-through after second. 5 second burn ), with no fuze or self-destruct function the manufacture of the.. 1 inch ) high heat buildup and barrel erosion the.50 cal machine gun when adapted and fitted to aircraft! '' /50 Mark 22 gun fitted to some aircraft. [ 6 quad 20mm autocannon War II, twin and Oerlikon! In 1940, only 109 guns reached the United Kingdom almost exclusively by the design of FFS! Being elevated above the crankcase by the Bofors 40 mm gun and the 2SS of 1945 which achieved 650.. Cyclic rate of fire of 520 rpm through the hollow propeller hub this! Anti-Air gun, and a number of different AP types, in its naval applications small-caliber semi-automatic.... Ff were not successful War II, twin and quadruple Oerlikon mounts developed! Original Flak 30, this was a re-… it would not be effective non-locking, simple blowback are... Oerlikon over a two day shoot by a 60-round drum magazine holding 15 30... To the C/30 for Army use, producing the 2 cm Flak 38 was accepted as the C/38 and by. 1939 a contract for 1,500 guns was placed in Switzerland not looked upon favorably by the Royal Navy to... Areas of development were the mount had a cyclic rate of fire on the top of the armors... To some aircraft. [ 6 ] remained unsolved 1941 and entered service in 1942 using two.. Is significantly lower due to tracer burn-through after 2 second flight ( 1000m range ) due to rapid buildup...