D0800


Application of Variable-Disc PivotRotor to Tilt Rotor Aircraft


ABSTRACT

Although tilt rotor aircraft can fill the full helicopter flight envelope from take-off through horizontal flight to landing, in airplane flight mode the tilt rotor aircraft cannot fill the full airplane flight envelope. Ground interference between the forward-tilted rotor precludes normal rolling take-offs and landings. Moreover, because the rotor disc area is significantly greater than that required for optimum propeller effectiveness, forward flight efficiency suffers.

Unlike telescoping blades which require major modifications in blade design, the proprietary PivotRotor described herein is designed to decrease the propeller disc diameter to increase both tilt-rotor efficiency and versatility without significantly affecting blade construction


Application of Variable-Disc PivotRotor
to
Tilt Rotor Aircraft
 
For detailed description contact

Moishe Garfinkle

RotorWing Associates

(215) 235-5042


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