Austrians strapped six spinning barrels to a thing and called it an aircraft. It flew! Looked like a tipsy washing machine ...

The pair’s helicopter was completed in December 1922. The finished product was massive and exceedingly complex. Four ...

It may look "nutty" and like a "blender," but the designers say the craft could challenge helicopters ...

Preliminary investigations suggest the rotor blades may have struck telephone cables during a controlled emergency landing attempt. On May 12, a helicopter blade struck a vehicle at the Badrinath ...

Abstract: This paper is concerned with the dynamic analysis of a pre-twisted rotating composite rotor blade. General kinematical relations for a beam theory that treated finite rotation were ...