 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (July 2018) |
| DEFA cannon | |
|---|---|
 DEFA cannon in a Mirage III twin mount | |
| Type | Revolver cannon |
| Place of origin | France |
| Service history | |
| In service | 1954–present |
| Used by | France, Switzerland, Israel, Italy, South Africa and others. |
| Production history | |
| Designer | DEFA |
| Designed | Late 1940s |
| Manufacturer | CASA, Dassault Aviation, Matra, AEi Systems. |
| Produced | 1954 |
| Specifications | |
| Mass | 552: 80 kg (180 lb) 553: 83 kg (183 lb) 554: 85 kg (187 lb) |
| Length | 552: 1.66 m (5 ft 5 in) 553: 1.86 m (6 ft 1 in) 554: 2.01 m (6 ft 7 in) |
| Barrel length | 552: 1.4 m (4 ft 7 in) |
| Shell | 30 × 113 mm |
| Calibre | 30 mm (1.2 in) |
| Action | Five-chamber revolver |
| Rate of fire | 552: 1,100-1,500 rpm 553: 1,300 rpm 554: 1,100 rpm (low) or 1,800 rpm (high) |
| Muzzle velocity | 765–815 m/s (2,510–2,670 ft/s) |
The DEFA cannon (Direction des Études et Fabrications d'Armement) is a family of widely used French-made aircraft revolver cannon firing 30 mm caliber NATO standard rounds.