Chambered for the 20 x 110RB round, the Oerlikon weighed 67 kg, measured 216 cm in length with a 140 cm long barrel, and utilized the Advanced Primer Ignition (API) blowback method of operation, giving a rate of fire of 450 rounds per minute.
- ↑ Williams, Anthony G. Rapid Fire - The Development of Automatic Cannon, Heavy Machine Guns and their Ammunition for Armies, Navies and Air Forces. Airlife Publishing. 2000. ISBN 1-84037-122-6 Page 244