20 mm modèle F2 gun
| 20 mm modèle F2 gun | |
|---|---|
| Type | Autocannon |
| Place of origin | France |
| Specifications | |
| Mass | 332 kg (732 lb) (without ammunition) |
| Length | 2,600 mm (100 in) |
| Barrel length | 1,970 mm (78 in) |
| Caliber | 20×139mm |
| Action | Gas unlocked, delayed blowback |
| Elevation | −15° to + 65° |
| Rate of fire | 900 round/min |
| Muzzle velocity | 1,050 m/s (3,400 ft/s) |
| Effective firing range | 1,500 m (4,900 ft) against aerial targets |
The 20 mm modèle F2 gun is a naval defence weapon used by the French Navy. It was developed from the GIAT M693, itself derived from Hispano-Suiza HS.820. It fires the same 20×139 mm round.