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 envisioned a powerplant suitable for self-launching sailplanes, his initial attempts utilizing pulsejet engines with their bodies integrated within the blades of a propeller, and exhausts directed 90 degrees to induce propeller rotation.