hardover

noun

1. (uncountable)The condition where a control surface or actuator has moved to its extreme limit.

   “Move the remote Stick full aft (toward tail of helicopter); the null meters should move aft to a hardover position on the flight director and aft pilot control panel.”

2. (countable)An instance of a control surface or actuator moving to its extreme limit.

   “Scenario 4 involves a preexisting yaw damper hardover condition that resulted in a rudder surface movement to 3° to the right, which the pilots compensated for with 3° of left rudder trim.”