Patent ID: 7913947

Claim:
A tiltrotor aircraft, comprising: a wing; a rotatable pylon carried by the wing, the pylon being secured to a pylon support spindle that extends into the wing, the pylon support spindle being rotatable about a spindle axis; an actuator drive for driving an actuator spindle, the actuator spindle being rotatable about an actuator axis; a pivoting link connecting a radial portion of the actuator spindle to a radial portion of the pylon support spindle, such that the pylon support spindle is rotated as the actuator spindle is rotated, the link being pivotally connected to the radial portion of the actuator spindle at an actuator connection point, the link also being pivotally connected to the radial portion of the pylon support spindle at a spindle connection point; a first length being the distance between the spindle axis and the spindle connection point; a second length being the distance between the actuator axis and the actuator connection point; wherein the first length is greater than the second length so as to provide an increased torque when the rotatable pylon is rotated near extreme ranges of motion; wherein a first direction of rotation of the actuator spindle causes the link to push the radial portion of the pylon support spindle, thereby causing the pylon support spindle to also rotate in the first direction of rotation; and wherein a second direction of rotation of the actuator spindle causes the link to pull the radial portion of the pylon support spindle, thereby causing the pylon support spindle to also rotate in the second direction of rotation.