MG 213

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The MG 213 is a revolver cannon that was developed by the German company Mauser during the Second World War . Due to the war, only ten prototypes could be produced, which fell into the hands of the Allies in various places at the end of the war.

history

The Ministry of Aviation required a 20-mm-aircraft gun with a cadence of 1000 rounds / min and a muzzle velocity of 1000 m / s. The manufacture of such a weapon required a completely new development, as the conventionally available systems could not cope with such high performance parameters. In the past, each cartridge had to be individually inserted into the chamber , ignited and ejected, which severely restricted the system. The firing sequence and also the functionality suffered greatly from the g-forces prevailing in an aerial combat . Therefore, in the new design, the barrel and the chamber were separated by the revolver drum system, which has been known since the 16th century. This transformed the linear movement of the locking system into a rotating movement and the cadence and reliability could be increased considerably. In addition, the general rejection of the gas pressure charger was deviated from.

technology

Now the weapon was a gas pressure loader that controlled a slide, which in turn drove the drum with five chambers and the cartridge feeder. The barrel was sealed to the barrel by operating the system in a closed housing and by a bushing that slid forward with each shot and connected the barrel to the barrel. This resulted in a rotating movement, while only the control slide, which drives the cartridge feed star, performed a linear movement. The weapon was operated electro-pneumatically and ignited electrically. Thus the cannon could also shoot through the propeller circle as a controlled weapon . By exchanging the barrel and the drum, the weapon could be converted from a 20 mm MG213C to a 30 mm MK213C.

Further developments

The weapon itself was so trend-setting that all victorious powers reproduced it almost unchanged or developed it further on its basis. This is how the M39 was created in the USA , France had DEFA and in Great Britain it was ADEN . The Swedish Air Force used the 30 mm KCA automatic cannon manufactured by Hispano-Suiza (later Oerlikon ) in Geneva in the Saab Viggen JA 37, which was used as an interceptor from 1978 to 2005 . The 206RK and 302RK from Oerlikon were also based on the MG 213.

Revolver cannons continued to be developed in post-war Germany and Switzerland. Above all, the companies Mauser and Oerlikon, both of which later became part of the Rheinmetall Group , were in charge. Rheinmetall still manufactures revolver cannons with the Mauser BK-27 and the KDG 35/1000 .

Technical specifications

20mm MG213C
  • Caliber : 20 × 135 mm
  • Weight: 75 kg; Assembly weight 96 kg
  • Length of the weapon: 1930 mm
  • Pipe length: 1600 mm
  • Shot rate : 1200–1400 rounds / min (approx. 21 rounds / s)
  • Muzzle velocity : 1050 m / s
30mm MK213C
  • Caliber: 30 × 85R mm
  • Weight: 75 kg; Assembly weight 96 kg
  • Length of the weapon: 1630 mm
  • Pipe length: 1300 mm
  • Shot rate: 1000–1200 rounds / min (approx. 19 rounds / s)
  • Muzzle velocity: 530 m / s

Web links

literature

  • The history of the development of the Mauser MG / MK 213 C aircraft gun - forerunner of the BK 27 , Schmidt, Walter, 2003