In the winter of 1922/23 Reinhold Platz designed and constructed a glider. The idea occurred during a sailing trip on the Schelde. To a certain extent sailing on water can be compared (aerodynamically) with gliding. After several tests with small and large mod-els, Platz constructed a full-size glider. Its fuselage comprised a curved steel tube with a circular-section wooden beam inserted through it at the rear. The wing spars were two wooden masts which were inserted into two receptacles welded to the fuselage tube near the pilot's seat. The “main sail”, or wing, was attached to these two masts. The two separate forward jibs were attached to jib-masts, which could be moved by the pilot simultaneously or separately as required. By moving the two jibs up or down, longitudinal control was obtained. By moving one jib up and the other down, lateral control was possible.
The glider had a wing span of 6.60 metres and weighed 40kg. It could be assembled by one man within 15min, and dismantled within 10min. It could be transported on a bicycle. After some 50 unmanned test flights, piloted trials were made.