Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for controlling an unmanned air vehicle (UAV) that includes a plurality of independently controllable control vanes.SOLUTION: Control vane position commands are supplied that will move each of the control vanes to a position that will cause the UAV to implement a commanded maneuver. Inoperability of one of the control vanes is sensed, and the position of the inoperable control vane is determined. New control vane position commands are determined, based on the determined position of the inoperable control vane, which will also cause the UAV to implement the commanded maneuver.
Abstract:
A tiltrotor aircraft (11) has a multi-mode tiltrotor nacelle control system with integrated envelope protection (13). The tiltrotor aircraft (11) has a fuselage (15), a tail section (17), a left wing member (21a), a right wing member (21b), a right engine nacelle (23b), a left engine nacelle (23a), a left proprotor (25a), and a right proprotor (25b). Activation of the nacelle control system causes preselected rotational movement of the tiltrotor assembly.