Patent ID: 9193439
Filing Date: 2015-11-24
Classification: B64C

Abstract:
1. A control system for an aircraft comprising: a control input member for receiving control input from a pilot of the aircraft, the control input member pivotally attached to the aircraft at a control member mount point; a spring; a spring arm having a first end and a second end, the first end of the spring arm pivotally attached to the control input member at a spring arm mount point, and the second end of the spring arm attached to the first end of the spring; an extendable and retractable preload actuator having a first end and a second end, the first end of the preload actuator attached to the second end of the spring and the second end of the preload actuator pivotally attached to the aircraft at a preload actuator mount point; wherein the tension or compression of the spring is adjusted by extending or retracting the preload actuator; and wherein at a neutral position the spring arm mount point is substantially in line with the preload actuator mount point and the control member mount point.