The Gryazev-Shipunov GSh-6-23 ( Russian : Грязев-Шипунов ГШ-6-23 ) (GRAU designation: 9A-620 for GSh-6-23, 9A-768 for GSh-6-23M modernized variant) is a six-barreled 23 mm rotary cannon used by some modern Soviet /Russian military aircraft.
3-402: The GSh-6-23 differs from most American multi-barreled aircraft cannon in that it is gas-operated , rather than externally powered via an electric , hydraulic, or pneumatic system. The GSh-6-23 uses the 23×115 Russian AM-23 round, fed via linked cartridge belt or a linkless feed system. The linkless system, adopted after numerous problems and failures with the belt feed, is limited. Fire control
6-592: Is electrical, using a 27 V DC system. The cannon has 10 pyrotechnic cocking charges , similar to those used in European gas-operated revolver cannon such as the DEFA 554 or Mauser BK-27 . The rapid rate of fire exhausts ammunition quickly: the Mikoyan MiG-31 aircraft, for example, with 260 rounds of ammunition (800 rounds maximum), would empty its ammunition tank in less than two seconds. GSh-6-23M has
9-573: The highest rate of fire out of any autocannon so far. The GSh-6-23 is used by the Sukhoi Su-24 attack aircraft , the MiG-31 interceptor aircraft , and the now-obsolete Sukhoi Su-15 among others. However, after two Su-24s were lost because of premature shell detonation in 1983, and because of some other problems with gun usage (such as system failures), usage of the GSh-6-23 was stopped by
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