The Oerlikon KCA is a Swiss gas-operated single-barrel

revolver cannon A revolver cannon is a type of autocannon, commonly used as an aircraft gun. It uses a cylinder with multiple chambers, like those of a revolver handgun, to speed up the loading-firing-ejection cycle. Some examples are also power-driven, to fur ...

developed for aircraft use. Its most noticeable use was on the JA 37 Viggen fighterRheinmetall's family of medium calibre cannons
/ref> mounted in a conformal pod as the ''akan m/75''. The KCA fires a shell that is 50% heavier than the

NATO The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two No ...

standard ammunition used on

ADEN Aden ( ar, عدن ' Yemeni: ) is a city, and since 2015, the temporary capital of Yemen, near the eastern approach to the Red Sea (the Gulf of Aden), some east of the strait Bab-el-Mandeb. Its population is approximately 800,000 people. ...

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

References

Oerlikon-Contraves 30 mm artillery Autocannon Aircraft guns {{weapon-stub