The Virtual
Aviation Museum
european aviation-
history on the internet
www.luftfahrtmuseum.com

Bölkow BO 46
 

The Bo46 was designed around the Derschmidt rotor sys-
tem to perform highspeed trials. The rotorblades are
moved individually to suppress negative backflow
effects during highspeed flight. Technical problems
couldn't be solved so the project was shut down.