- MFG: Martin 250CE
- Armament: (2) .50 caliber Machine Guns
- Application: B-24, B-26, A-20 and P2V
All metal and Plexiglas construction, this electrically operated dorsal
turret had a 400 round per gun capacity. All turrets consist of an
enclosure, control system, mount, sight, feed and firing mechanism.
Able to rotate 360 degrees, the turret had a mechanism that would
not allow the guns to fire through the propeller arc or tail, although
antennae were often victims. The upper turret was operated by the
flight engineer, a key man in an emergency, who was familiar with
the engines, airframe, oxygen, guns, radio, bomb racks and flight.