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| Vektor GA-1 | |
|---|---|
 GA-1 in Indonesian navy service | |
| Type | Autocannon |
| Place of origin | South Africa |
| Service history | |
| Used by | South African National Defence Force
Indonesian Navy |
| Production history | |
| Manufacturer | Denel |
| Specifications | |
| Mass | 39 kilograms (86 lb) |
| Length | 1.77 metres (5 ft 10 in) |
| Height | 195 millimetres (7.7 in) |
| Caliber | 20×82 mm |
| Rate of fire | 750 rds/min |
The Denel Vektor GA-1 is an automatic cannon based on the German WWII MG 151/20 automatic cannon. Compared to other rapid-fire 20 mm autocannons, it is lightweight and has low recoil due to its design and the use of the 20×82mm cartridge. The weapon was intended for use in vehicles, naval vessels, and helicopters.[1] One gun was fitted to the Atlas XH-1 Alpha attack helicopter demonstrator.