Germany: Luftwaffe Warplanes, 1939-1945: Baumgärtl Heliofly III/57

Deutsche Kampfflugzeuge der Luftwaffe 1939-1945: Baumgartl

German Warplanes flown by the Luftwaffe 1939-1945: Baumgartl

During and after the end of the Second War a number of German Warplanes were captured and evaluated by the Allied forces.  Most of these aircraft were later scrapped and therefore only a handful have survived.  This is a partial list of aircraft that were known to have been flown by the Luftwaffe.

Während und nach dem Ende des Zweiten Weltkriegs wurden eine Reihe deutscher Kampfflugzeuge von den Alliierten erbeutet und ausgewertet.  Die meisten dieser Flugzeuge wurden später verschrottet und daher haben nur eine Handvoll überlebt. Dies ist eine unvollständige Liste von Flugzeugen, von denen bekannt war, dass sie von der Luftwaffe geflogen wurden.

Baumgärtl Heliofly III/57

Paul Bäumgartl and Heliofly III/57 diagrams.  (Luftwaffe Diagrams and Photos)

Baumgärtl Heliofly III/57

The Baumgärtl Heliofly III/57 and Baumgärtl Heliofly III/59 were 1940s experimental backpack helicopters designed and built by the Austrian-designer Paul Bäumgartl. Following on from his earlier experiments with strap-on autogyros the Heliofly III/57 was powered by two 8 hp (6 kW) Argus As 8 piston engines each driving a single-blade of the contra-rotating rotors. A problem with the supply of the As 8 engine forced a re-design to use one 16 hp (12 kW) engine, powering two rotors on a common co-axial shaft, with the engine driving one rotor directly and the other through gearing to overcome the torque effect. (Nowarra, Heinz J.. Die Deutsche Luftruestung 1933-1945 - Vol.1 - AEG-Dornier. Bernard & Graefe Verlag. 1993. Koblenz)

A further development was called the Helio- fly III/59, powered with a more powerful 16hp engine. Its dry weight was only 35kg and the takeoff weight was about 120kg. In this design, the engine drove and counterbalanced the lower blade and, through gearing, also drove the upper blade, so that torque was still counterbalanced by contra-rotation. A weight, instead of an engine, counterbalanced the upper blade, and the flapping rotor system had cyclic pitch control. Baumgärtl had made several flights, but the desperate military situation by the end of the war put an end to his extraordinary project. (J.R.Smith, Antony L. Kay "German Aircraft of the Second World War", 1972)

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