Evaluation of a Circulation Control Tail Boom for Yaw Control.
Final rept. 1 Mar 77-1 Feb 78,
HUGHES HELICOPTERS CULVER CITY CALIF
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An experimental tail boom which uses circulation control principles to produce antitorque force from the main rotor downwash was flight-tested over a typical flight regime. The flight envelope included hover sideward and rearward flight to 30 knots forward flight to 80 knots climbs, turns, and maneuvers, such as pull-ups, and push-overs at 60 knots and autorotation.