M39 cannon
Single-barrel autocannon / From Wikipedia, the free encyclopedia
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The M39 cannon is a 20 mm caliber single-barreled revolver cannon developed for the United States Air Force in the late 1940s. It was used on a number of fighter aircraft from the early 1950s through the 1980s.
Quick Facts Type, Place of origin ...
M39 | |
---|---|
Type | Single-barrel autocannon |
Place of origin | United States |
Service history | |
In service | 1952–present |
Production history | |
Designer | Ford Motor Company |
Designed | 1951 |
Manufacturer | Pontiac, Ford, FMC Corporation, and others |
No. built | 35,500+ |
Variants | M39, M39A1, M39A2, M39A3 |
Specifications | |
Mass | 80.9 kg (178.5 lb) |
Length | 1.83 m |
Cartridge | 20×102mm |
Caliber | 20 mm (0.8 in) |
Barrels | Single barrel (progressive RH parabolic twist, 9 grooves) |
Action | five-chamber revolver |
Rate of fire | 1,500 rpm |
Muzzle velocity | 1,030 m/s (3,300 ft/s) |
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