N-57/OKB-16-57
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| N-57 | |
|---|---|
| Place of origin | USSR |
| Production history | |
| Designer | Alexander Nudelman |
| Specifications | |
| Mass | 135 kg[1] |
| Shell | 57 x 160 mm[1] |
| Caliber | 57 millimetres (2.2 in) |
| Barrels | 1 |
| Action | Gas-operated |
| Rate of fire | 230 rpm |
| Muzzle velocity | 550 m/s |
| Feed system | Belt |
The N-57 (also called the OKB-16-57) was a 57 mm Soviet autocannon designed shortly after WWII by Alexander Nudelman, and tested on the prototype of the MiG-9 interceptor (known internally as the I-300) . Due to being a prototype weapon of the early Cold War, not much is known about the N-57 and there is much conflicting data on this weapon.[2]