 Like the American Boeing B-29 Superfortress, the Ta 400 was to have a pressurized crew compartment and tail turret, connected by pressurized tunnel, as well as multiple remote-controlled turrets.The crew of nine was to be protected by a heavy defensive armament, including ten 20 mm MG 151 cannons; and the same "Hecklafette" quadmount tail-turret with four MG 131 machine guns, as the later model Heinkel He 177A-series aircraft and He 177B bombers would have used.Fuel supply was to have distributed across 32 fuel tanks.