Gerhard Fiesler, a successful German World War I pilot became a partner, flight instructor and Flight-day organizer with the Raab-Katzenstein airplane factory in Kassel.  The company declared bankruptcy in 1930.  Little is known about what happened in between.  Just prior to closing their doors the 1929 Raab-Katzenstein "Rakete" was developed as a test-bed for rocket powered flight.  The tail-first design performed flight tests with a conventional engine.

Only the uncovered fuselage remains of this early glider.