The GIAT 30 is a series of gun S of gauge 30 mm developed to replace the Canon DEFA series 550 on the military aircraft French. The initial speed of ejection of the ammunition is of 1  025 m/s.

Introduced at the end of the years 1980 GIAT 30 is a Canon with barrel, therefore rather adapted to short gusts of a half or a second, with firing electric (with the difference of the DEFA which is with gas) and automatic loading.

Two versions of GIAT 30 are proposed:

• the GIAT 30 M781 is initially intended to be gone up on helicopter as the Eurocopter Tigre either fixes or out of turret. Its length is of 1,87 m for a weight of 65 kg. Its ammunition is approximately 220 G. The rate of shooting is 750 blows/minute.

• the GIAT 30 M791 for the fighter plans like the Dassault Rafale. Its length is of 2,4 m for a weight of 120 kg. Its 150 mm long ammunition weighs 275 G. The rate of shooting is to be chosen of 300 with 2  500 blows/minute.

Technical data of GIAT 30 M791

• Mass 120 kg
• Effort of retreat < 2.700 daN
• Rate of shooting 2.500 blows per minute (21 shells drawn and 1 kg from explosive delivered into 0,5 S)
• Modes of shooting limited Gusts (0,5 S or 1 S) or free

• initial Speed 1.025 m/s
• Power supply 28 V - 5 has - continuous
• Dimensions (L X L X H) 2.400 X 290 X 240 mm
• Operating temperature - 54 °C/+ 74 °C

Equivalent weapons

• Gryazev-Shipunov GSh-30-1 equipping the Soviet fighter plans then Russian
• M61 Vulcan equipping the great majority with the American fighters
• GAU-8 Avenger equipping the A-10

External bond

• Page of Nexter on M791