The Oerlikon GAI-BO1 is a Swiss single-gun air defence weapon consisting of an Oerlikon KAB 20 mm cannon on a hand traversed and elevated mounting. The GAI-BO1 has an effective ceiling of 1500 metres and a muzzle velocity of 1100 meters-per-second. Found on http://www.probertencyclopaedia.com/browse/FYG.HTM
The Oerlikon GAI-BO1 is a Swiss single-gun air defence weapon consisting of an Oerlikon KAB 20 mm cannon on a hand traversed and elevated mounting. The GAI-BO1 has an effective ceiling of 1500 metres and a muzzle velocity of 1100 meters-per-second.