apparatus for providing mechanical feedback of a position of an actuator to a controller in a high vibration environment . the apparatus includes a member that contacts a cam surface of the actuator such that movement of the actuator and cam surface causes the member to move . the apparatus also includes a spring that exerts a force on the member toward the cam surface to maintain contact between the member and the cam surface . the apparatus also includes a damper that dampens motion of the member , thereby eliminating resonant movement of the spring and member caused by vibrations .