As early as mid-1943 Adolf Müller, formerly of the Junkers Jumo aircraft powerplant division of the parent Junkers aviation firm in Dessau, and then Heinkel-Hirth's (Heinkel Strahltriebwerke) jet engine division, proposed the use of a gas turbine for armored vehicle engines. A gas turbine would be much lighter than the 600 hp-plus class, gasoline-fueled reciprocating piston engines being used in the next-generation tanks, to that time primarily sourced from the Maybach firm for the Wehrmacht Heer's existing armored fighting vehicle designs, that it would considerably improve their power-to-weight ratio and thereby improve cross-country performance, and potentially outright speed. At that time, there were considerable challenges with the use of gas turbine engines in this role, however.
In 1943, Adolf Müller's proposal for using a gas turbine engine in armored vehicle engines aimed to improve power-to-weight ratio and cross-country performance of these vehicles. This was an alternative to the gasoline-powered reciprocating piston engines used in tanks at that time.