With this larger, and heavier, fuselage came the need for a new engine to lift it.
In this case the aircraft is carrying around a large fuselage for no reason, adding mass and drag and thereby lowering performance.
With its larger fuselage, customers could stand up and large windows were also provided.
Because of its large fuselage it was also called the flying moving van ('fliegender Möbelwagen' in German).
The larger fuselage allows for an extra (middle) row of seats.
The wing was moved to the shoulder position with the engines mounted on the wing and a new larger fuselage was used.
It had a relatively large fuselage, an unnecessary characteristic for a bomber, which determined its future as a transport aircraft.
In addition, there were no holes in the fuselage large enough to have been made by the impact of a missile, they said.
Bell also planned the single-engined 400A, and the 440 twin with a larger fuselage made possible by a high degree of composites.