Oerlikon KCA

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Oerlikon KCA
Akan M75.jpg
TypeAutomatic cannon
Weight136 kg (300 lb)
Length2.69 m (8 ft 10 in)
Barrel length1.98 m (6 ft 6 in)

Shell30 x 173mm
ActionFour-chamber revolver
Rate of fire1,350 rounds/min
Muzzle velocity1,030 m/s (3,400 ft/s)

The Oerlikon KCA is a Swiss 30 mm (1.181 in) gas-operated single-barrel revolver cannon developed for aircraft use. Its most noticeable use was on the Saab 37 Viggen fighter mounted on a conformal pod. The KCA fires a 30 mm × 173 mm (1.181 in × 6.811 in) shell that is 50% heavier than the NATO standard ammunition used on ADEN and DEFA cannon. It can fire up to 1350 rounds per minute at a muzzle velocity of 1030 m/s, with an effective range of 2,500 m (8,200 ft)