||The "feel" of the controls plays an important part in the
flight experience. In small GA airplanes, the pilot controls are in direct
connection with the control surfaces. Thus the pilot will receive very direct
feedback of the airodynamic forces on the control surfaces. These forces are
an extra input for the pilot for judging the flight conditions.
Most joysticks have build-in springs to give a return to center force. Hardly realistic, since the centering force stays constant regardless the flight conditions.
I have bought a commercial force-feedback stick, (Logitec Wingman 3D
Force Feedback) that showed some improvement, as there is some relation between
centering force and airspeed. Also gear and landing bump jolts were
incorporated. The main drawback of the commercial FF sticks is the rather
low force, and the apparent delay between stick movement and force response.
A second generation flight yoke with force feedback is described at Force Feedback Yoke II page.
The force feedback added to a flight stick is described in Flight stick
DIY force feedback interfacing describes the DIY method of making control forces depend on flight parameters.
Rudder pedal forces also depend heavily on flight conditions. With the
new interface possibilities that I discovered with the
motion platform projects, I now
also had a way of adding force feedback on rudder pedals.