Patent ID: 6824099
Filing Date: 2004-11-30
Classification: B64C,B64D

Abstract:
An aircraft system for moving a control surface between an extended position and a retracted position, the aircraft system comprising:a drive shaft operably coupled to the control surface, wherein the control surface moves from the extended position toward the retracted position in response to rotation of the drive shaft about a longitudinal axis in a first direction; a rotor operably coupled to the drive shaft and configured to rotate in response to rotation of the drive shaft in the first direction; at least one motion resistor operably engaging the rotor, wherein the rotor rotates with respect to the motion resistor when the drive shaft rotates in the first direction moving the control surface from the extended position toward the retracted position, and wherein the motion resistor resists rotation of the rotor as the rotor rotates with respect to the motion resistor; and a sensor operably coupled to the motion resistor and configured to measure a force usable for determining the torque applied to the motion resistor as the rotor rotates with respect to the motion resistor and the control surface moves from the extended position toward the retracted position.