The Bell P-39 �Airacobra� ended up being on the list of principal fighter aircraft in service with US forces from the beginning of World War II. It absolutely was build by the Bell Aircraft Corporation Maiden journey April 1939. The aircraft's uncommon design showcased its Allison motor mounted in the exact middle of the fuselage, simply behind the pilot, driving the propeller through a driveshaft passing between the pilot's feet. a 37 mm T9 cannon firing through center associated with propeller hub. Entry toward cockpit finished up being through a side door.Total 9,584 instance were produced, with over half being delivered to the Soviet Union in lend-lease program.