[simpits-tech] CH stick/flight control feel

[Brian West.]

Justin,    Interesting mail,  I just happen to have two Jabsco 12v pump
motors of around 10 amps ,  1/4" shafts that should do fine.
I had thought about rudder feel and as a cheat was going to use aileron
feedback. Not quite the same in a crosswind situation but better than
nothing.      Best regards,    Brian West.
-----Original Message-----
From: Justin Messenger <jjmessenger@yahoo.com>
To: Simpits-tech@simpits.org <Simpits-tech@simpits.org>
Date: 21 May 2002 20:52
Subject: [simpits-tech] CH stick/flight control feel


>That sounds like it would work fine for simply adding
>a better feel to the stick. I guess it all depends on
>the amount of resistance the motors you use provide.
>The #1 reason I added the linkage to my sim is because
>I need to link two joysticks. The 2nd stick will
>simply move the forward stick, that means I dont have
>to put pots in the second stick. If the rear cockpit
>were designed with the capacity to fly independently
>of the front cockpit, then I'd be forced to place pots
>in the rear cockpit too. Something I now realize is
>that when pulled aft the F-4's stick returns to a
>neutral position. This is due to the Flight computer
>system. Part of the after take off check list is to
>pull back an the stick and see if it returns to
>neutral position after you release it. If the the
>stick does not move forward then you have an AFCS
>failure and the plane is unsafe for high performance
>flying. I'm going to add a spring that pulls the stick
>forward almost to the neutral position.
>
>Something else I I've thought about was using the CH
>stick to run a motor as a rudder pedal shaker. I
>haven't really put much thought into it yet.
>
>Justin
>
>---------------------------------------------
>
>Justin,   Had a thought last night after reading your
>message about loading
>up the linkage. You really need to feel that you are
>moving flying surfaces
>around with a bit of a stick through treacle feel.
> I thought of using a  pair of unpowered  D.C. motors
>belt driven from the
>shafts with a ratio of about 3 to 1 to provide
>resistance.
>The next step would be to power them via a relay from
>the switching current
>of the C.H. feedback motors.
>Do you reckon this would be feasible?, it would
>certainly be easier than my
>original idea using small pneumatics.
>
>
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