Comparing: Krupp-Steyr Waffenträger vs. M56 Scorpion

A vehicle project by Steyr as a special artillery transporter that would be able not only to transport the gun but also to fire it from the chassis. To keep costs down and reduce complexity, the design used many components of the Raupenschlepper Ost, a tracked artillery mover. The turret and gun were supplied by Krupp. One wooden model and one prototype were manufactured by September 2, 1944.

The M56 SPG was intended to support airborne units as a light tank destroyer that could be transported by cargo planes or inserted by parachute or glider. The vehicle was mass produced from 1953 through 1959, but it was not popular and was soon replaced by the Sheridan light tank. The Scorpion was occasionally used to provide artillery support in Vietnam.