The DEFA revolver cannon is a French 30mm autocannon developed by DEFA (Direction des Études et Fabrications d'Armement) in the early 1950s. It was designed for use in fighter jets and has been a staple armament for numerous aircraft, including the Dassault Mirage III and the SEPECAT Jaguar. The DEFA 30mm cannon features an adjustable firing rate with two options: 1,500 RPM to intercept airborne targets and 1,200 RPM to strike ground targets. Additionally, it originates from the same family of autocannons as the ADEN Cannon, and so they use the same NATO-standard 30x113mm ammunition. Being a modern autocannon with enormous firepower, demand for DEFA cannons amongst the most successful airmen of Oceanyka is very high, as it is considered superior to contemporary Soviet designs which tend to be of lower calibres.