DIY Force Feedback
Hacking a Force Feedback stick
Flight yoke FF mechanics
DIY force feedback interfacing
Rudder pedals with force feedback
MS Sidewinder FF2 hacking
ForceFeedback Yoke II
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.
To improve the stick force, I hacked the FF stick, and used the FF signals to drive power buffers with bigger motors. This is described in Hacking a Force Feedback Stick

MS Sidewinder Force Feedback 2 stick can also be successfully hacked: see MS Sidewinder FF2 hacking page

The force feedback added to a flight yoke is described in Flight yoke FF mechanics

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.
The force feedback added to rudder pedals is described in Rudder pedals FF mechanics


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