The design was intended to be a multi-engine aircraft that in the event of failure of a single engine would not, because of assymetric thrust become dangerously difficult to control; the result is an asymmetrical aircraft with a very distinct appearance.
The design was intended to be a multi-engine aircraft. This was because of assymetric thrust. This assymetric thrust was become dangerously difficult to control. This multi-engine aircraft in the event of failure of a single engine would not. The result is an asymmetrical aircraft with a very distinct appearance.