Actuator for a g-limiter override

摘要

Spring-loaded linkage contained in a housing attached to the control stick of an aircraft. One member of the linkage is an arm having an end projecting from the housing and forming a hand grip through which the pilot controls the aircraft. The linkage provides a resisting force on the arm which prevents it from rotating relative to the control stick during normal flight maneuvers. However, when the control stick is pulled to full aft stop and additional pull equal to the spring break-out force is applied, the resisting force suddenly decreases, and the arm and grip rotate aft a discrete displacement relative to the control stick. This displacement actuates a g-limiter override which permits the aircraft to exceed set limits on its normal acceleration. The discrete displacement also provides the pilot with a tactile signal that the override has been actuated. The g-limiter override condition can be maintained by a pull on the grip substantially less than the spring break-out force. When the pull on the grip drops below the override maintenance level, the resisting force rapidly increases back up to the spring break-out force. The arm and grip are then instantaneously rotated forward a discrete displacement relative to the control stick. This forward displacement deactivates the g-limiter override and provides the pilot with a tactile signal that the g-limiter override has been deactivated.