20 mm Polsten
Autocannon / From Wikipedia, the free encyclopedia
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The Polsten was a Polish development of the 20 mm Oerlikon gun. The Polsten was designed to be simpler and much cheaper to build than the Oerlikon, without reducing effectiveness.
This article relies largely or entirely on a single source. (June 2023) |
Quick Facts Polsten, Type ...
Polsten | |
---|---|
Type | Autocannon |
Place of origin | Poland United Kingdom |
Service history | |
In service | 1944 - 1950s |
Production history | |
Designed | 1939-1941? |
Manufacturer | John Inglis |
Unit cost | £60 - £70 |
Specifications | |
Mass | 57 kg (126 lb) |
Length | 2.1 m (6 ft 11 in) |
Barrel length | 1.45 m (4 ft 9 in) (barrel) |
Calibre | 20 mm (0.78 in) |
Action | API blowback |
Rate of fire | 450 rpm |
Muzzle velocity | 830 m/s (2,700 ft/s) |
Effective firing range | 1,000 m (3,281 ft) |
Maximum firing range | 2,000 m (6,562 ft) |
Feed system | 60 round drum magazine or 30 round box magazine |
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