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

[Matt Bailey]

Well, venting the air as you move the stick will not only change stick 
pressure at a given control surface loading and stick position, it will 
change the centering of the stick. I'd say seal off the chambers. You don't 
really get a drifting center in real planes, just a constant amount of force 
required for a given control surface loading and control position.

My idea is to have sealed chambers for the air, just adjust the air pressure 
with airspeed, rather than bleeding air off as you move the stick. So, if you 
were flying at a given airspeed and had half up-elevator, you would have to 
hold one, constant force to keep the stick at that position. If you slowed 
down, a regulator would reduce the air pressure in both chambers, hence less 
force required to hold that half up-elevator. As you released the stick, 
force would naturally be less as the stick neared center.

I figured for elevator trim you could simply move the air cylinder assembly 
forward/aft.

	-Matt Bailey

On Friday 07 February 2003 08:47, you wrote:
> That was basically the thought.  What are your comments (he asks, with some
> trepidation)?
>
> Keenan
>
>
> -----Original Message-----
> From: Matt Bailey [mailto:mattb@rtccom.net]
> Sent: Thursday, February 06, 2003 7:18 PM
> To: simpits-tech@simpits.org
> Subject: Re: [simpits-tech] May the Force Feedback be with you...
>
>
> I have not been following this entire conversation, but it sounds like the
> force feedback system by Keenan will change force required to move the
> stick by varying the speed at which air can enter/escape an air chamber.
> Correct? 'Cause if so, I got some comments to make. :)
>
> 	-Matt Bailey