Schempp-Hirth has a long tradition in building high-performance gliders with built-in engine. As early as 1935 Wolf Hirth published his idea of a glider with retractable engine in the magazine "Flugsport", particularly as a means to enable gliding safaris. His glider MoSe Hi-20 with "disappearing engine", that he built together with Wolfgang Hütter, was probably the first glider with a retractable engine.
By now, Schempp-Hirth offers all currently available models with at least one engine option, providing the base for otherwise unachievable flights.
With the proven electric sustainer system FES (Front Electric Sustainer), designed and built by LZ Design, we can now offer an innovative, environment-friendly sustainer system that is very different from all other systems: The foldable propeller is located at the tip of the fuselage, the blades fold tightly onto the fuselage when not in use.
The reliable and lighting-fast starting and stopping of the engine with any noticeable additional drag allows to spontaneously use the electrical engine, which opens completely new perspectives. The powered flight is perceived in a very new way and can be enjoyed by puristic glider pilots.