Schreder envisioned such a powerplant as being ideal for self-launching sailplanes. His first attempts featured pulsejet engines with their bodies contained within the blades of a propeller, and exhausting through nozzles deflected 90 degrees so as to cause the propeller to spin.
Schreder's concept involved a power plant designed for launching sailplanes autonomously, utilizing pulsejet engines housed within propeller blades, with exhausts angled 90 degrees to spin the propeller.