US Army Air Force

P-39

P-39 Airacobra during a test flight with all weapons firing,1941.Some variants were armed with .50 and .30 caliber machineguns plus a 37 mm cannon.In TOO were weight was a problem the .30 guns were deleted.Early models of the 37 mm cannon were built by Oldsmobile and had a magazine holding 15/20 rounds.Later models of the P-39 carried a 20mm cannon.The RAF recieved its P-39 but they called them P-400's.Compared to the Hurricane and Spitfire it proved less capable for the British.Later the RAF passed them on to the Russian Airforce.Greetz,Brummbar