November 6, 1961
|Number of pieces:
From the end of 1958, Alfons Pützer turned back to the design of motor gliders, which at that time were rejected by glider pilots because of their poor gliding characteristics, but at the same time also caused little interest from touring pilots because of their limited range and performance. Initially, Pützer intended to develop a simplified motor glider design based on the Pützer Bussard , with greatly elongated wings and a rear propeller on a V-tail unit as "Dohle II". After the introduction of the new K-Class for motor gliders in Germany, which made lower demands on both the type certification of new aircraft types and the pilot training compared to conventional motor aircraft, Alfons Pützer gave up this further development of the Dohle II.
Instead, Alfons Pützer KG created a completely new design of a motor glider, which was designed for the framework conditions of the K-Class and should meet the needs of sailing and travel pilots. The motor glider Pützer MS-60 was a cantilevered middle-decker, the front fuselage shell of which consisted of a GRP-encased sheet metal tub and towards the stern of a fabric-coated tubular frame. The horizontal stabilizer of the tail unit was arranged in front of the vertical fin. The 28 hp Ilo F2x376, known from the Dohle II, was used as the motor, which was integrated in the fuselage behind the cabin at the height of the wing center section. However, it no longer drove a propeller at the tail of the aircraft, but rather two folding propellers driven by V-belts on the wing tip edges. The folding propellers were designed in such a way that they automatically folded up when the car was at a standstill and unfolded by centrifugal force when the engine started. The MS-60 received a retractable central nose wheel with nylon support brackets on the wings, as well as air brakes and a sliding hood.
The prototype of the MS-60 was completed in late autumn 1961 and flew for the first time with the provisional approval D-KACO on November 6, 1961 in Bonn-Hangelar. In May 1962 it was presented at the ILA 1962. In June 1962, Pützer participated with the MS-60 at the 2nd German Motor Sailing Meeting in Leutkirch, Baden. Although the MS-60 is one of the most highly regarded and innovative motor gliders of its time, the calculated unit price of 35,000 DM in the sport aviation sector at the beginning of the 1960s was too high. In addition, the MS-60 with the Ilo engine was still too heavy.
Instead of continuing the in-house development of the MS-60, Alfons Pützer decided in 1963 to work with the French designer René Fournier , whose comparable Fournier RF-3 had already been built in series at Alpavia SA in France. The Pützer MS-60 remained a one-off, which was later taken over by Herbert Gomolzig and further developed as the Gomolzig MS-65. But the Gomolzig MS-65 did not go into series production either. In the 1970s, Alfons Pützer once again took up various design features of the Pützer MS-60 for the modernized design of the Sportavia MS-75 .
Unless otherwise stated, the information on the Pützer MS-60 was taken from.
|Max. Takeoff mass
|130 km / h
|1 × Ilo F2x376, 30 PS (22 kW)
- Paul Zöller, Hanns-Jakob Pützer: Pützer aircraft . Norderstedt, 2018, ISBN 978-3-7481-2096-4 .
- Heinz Dieter Schneider: From the Elster to the Bussard Airplane Classic 4/2007
- Alfons Pützer Homepage - Image archive for the Pützer MS-60
- Planeurs - data sheet Pützer MS-60
- Britain - MS-60 at ILA 1962