A pilot flight control stick haptic feedback system includes a pilot user
interface, a position sensor, a pilot motor, and a control circuit. The
pilot user interface is movable to a position at a movement rate. The
position sensor senses the position of the pilot user interface and
supplies a pilot user interface position signal. The pilot motor is
coupled to the pilot user interface, and receives pilot motor feedback
signals. The pilot motor, in response to the pilot motor feedback
signals, supplies feedback force to the pilot user interface. The control
circuit determines one or more of the pilot user interface position,
movement rate, aircraft control surface slew rate capacity, aircraft
control surface load rate capacity, and aerodynamic stall risk and, based
on at least a subset of these determinations, supplies pilot motor
feedback signals to the pilot motor.