Apr 062012
Doblhoff Wnf 342 V4 Helicopter—Evaluation by General Electric (1948)

The photos above depict the Doblhoff Wnf 342 V4, an experimental German helicopter which employed tip jets to drive the rotor. It was built by a group of Austrian engineers at the Wiener Neustädter Flugzeugwerke headed by Friedrich von Doblhoff and was originally designed to fulfill a German Navy requirement for an observation platform to be […]