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The B-20 was created by Mikhail Yevgenyevich Berezin in 1944 by converting his 12.7 mm Berezin UB machine gun to use the 20 mm rounds used by the ShVAK cannon. No other changes were made to the weapon which was pneumatically or mechanically charged and was available in both synchronized and unsynchronized versions.
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. It is widely produced by Oerlikon Contraves and others, with various models employed by both Allied and Axis forces during World War II. Many versions of the cannon are still used today.
The Berthier-type gas regulator had four holes (of 3.5, 4, 4.5, and 6 mm) allowing for different rates of fire to be selected. [7] The most significant design difference from the ShKAS was that the gas cylinder was moved under the barrel in the ShVAK, giving it a more compact assembly.
1,600 m against high flying aircraft [1] 2,500 m against ground targets [1] The Rheinmetall Mk 20 Rh-202 (short for Maschinenkanone 20 mm Rheinmetall) is a 20 mm caliber autocannon designed and produced by Rheinmetall. It fires the 20×139mm ammunition originally developed for the Hispano-Suiza HS.820 . The cannon is used on German military ...
The true history of pigeons is one of thousands of years of careful cultivation by humans, followed by nearly utter abandonments in the last century. We think of pigeons as a nuisance today, but ...
M61 Vulcan. The M61 Vulcan is a hydraulically, electrically, or pneumatically driven, six- barrel, air-cooled, electrically fired Gatling-style rotary cannon which fires 20 mm × 102 mm (0.787 in × 4.016 in) rounds at an extremely high rate (typically 6,000 rounds per minute). The M61 and its derivatives have been the principal cannon armament ...
20 mm caliber. 20 mm caliber is a specific size of popular autocannon ammunition. The dividing line between smaller-caliber weapons, commonly called "guns", from larger-caliber "cannons" (e.g. machine gun vs. autocannon ), is conventionally taken to be the 20 mm round, the smallest caliber of autocannon. All 20 mm cartridges have an outside ...
High-explosive squash head. A high-explosive squash head ( HESH ), in British terminology, or a high-explosive plastic/plasticized ( HEP ), in American terminology, [1] is a type of explosive projectile with plastic explosive that conforms to the surface of a target before detonating, which improves the transfer of explosive energy to the target.