[simpits-tech] May the Force Feedback be with you...

[David C. Allen]

At 08:26 PM 2/8/2003 -0600, you wrote:
>True.  But I was thinking that this was a good balance between absolute 
>realism and complexity.
>
>Keenan

The simplest way to simulate this is with a simple cam and follower. The 
follower has a spring which is attached to an electric linear actuator. The 
linear actuator stretches the spring based on airspeed, which makes the cam 
harder to turn. The shape of the cam matches the increase in aerodynamic 
loading on the control surface. The more you turn the cam the harder it 
becomes.

If you want to add trim you just add another actuator which rotates the 
follower to a new neutral position. Now the physical position of your 
control stick will have moved, this will allow you to trim to relieve 
pressure on the control stick.

David
www.737FlightSim.com