Aircraft Profiles
Bell P-39 Airacobra - Part I
The Bell P-39 Airacobra was introduced in 1941, and was an unusual fighter aircraft in that it was designed around a gun. The 37mm T9 cannon was fitted in the nose and fired through the centre of the propellor hub. The engine was behind the pilot and fed with air via a scoop intake above.
Early versions of the P-39 were armed with 1 x 37mm cannon, 2 x 12.7mm machine guns, and 2 x 7.62mm machine guns. In the P-39D this was increased to 4 x 7.62mm machine guns (in the wings) and the 'Q' version replaced the four wing guns with 2 x 12.7mm guns in pods.

The RAF replaced the 37mm cannon with the more reliable 20mm Hispano, and many Russian squadrons disposed of their wing guns completely, so there were large variations in armament.
Country of Origin:
P-39D1 - 23 Squadron RAAF
P-39Q - GCI/5 France
P-39Q - GCII/6 France
P-39Q - GCII/9 France
P-39Q - GCIII/6 France
P-400 - 604 Squadron
P-39N - 4 Stormo Italy
P-39Q - Poland
P-400 - Portugal