24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-1.9.4

CONFIGURATION ANALYSIS OF A TORQUELESS HELICOPTER CONCEPT

T. van Holten, M. Heiligers
Delft University of Technology, Faculty of Aerospace Engineering, Netherlands

Keywords: helicopter, ornicopter, vibrations, rotor lay-out, reaction torque

The Ornicopter is a single rotor helicopter without reaction torque. This is achieved by forced flapping of the blades. The expressions for the forces and moments that act about the rotor hub due to the flapping are derived and based on these expressions three different Ornicopter rotor concepts are analyzed.

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