> > A pilot familiar with that plane is almost certainly going to find it
> > very unstable in the pitch axis, and complain that the nose bounces up
> > and down too much. In the real plane, the dynamic pressure from the
> > relative wind tends to hold the control surfaces in one spot, and it
> > takes a bit of effort to move them from where they want to be (a *lot*
> > of effort for a big deflection). A home-computer joystick or yoke
> > might have a little spring in it, but in general, it's going to be far
> > too easy for the computer user to create an elevator deflection, and
> > the plane's going to feel unstable.
Just an idea -- if someone were to build proper force-feedback
yoke/pedals/etc., would FlightGear be able to drive them
realistically? I.e., is force on the controls part of the FDM?
> Fly! allowed one to change the exponential effect. Possibly it is
> misnamed, x^n involves an exponent, perhaps it was 'n' that could be
> varied. MSFS2K appears to have changed to some intrinsic non-linear
> mapping compared to FS98.
I don't know about Fly!, but "exponential" traditionally is a
misnomer. A lot of RC transmitters allow you to set it, but that
usually means that the response is proportional until you reach a
certain deflection, then makes a kink and the control starts reacting
with more authority, but still linearly. No such thing as an
exponential function, which is probably because exponentiation is
rather difficult to implement in analogue electronics.
> Fly!, and MS FS/CFS allow one to change 'null zone' and
> 'sensitivity' for the JS in the menu. Lower sensitivity adds more low
Is the null zone there in a real aircraft (backlash), or just a
feature of the sim to allow the pilot to go and grab a cup of coffee?
> > -1.0 => -1.00
> > -0.5 => -0.25
> > 0.0 => 0.00
> > 0.5 => 0.25
> > 1.0 => 1.00
This is a good response, but it also implies that at 0 deflection, the
control is totally nonresponsive (gradient is zero). Shouldn't we
simply add a linear term here? That would make the control linear
around the centre and transition into a square response at higher
deflections.
Andras
===========================================================================
Major Andras
e-mail: [EMAIL PROTECTED]
www: http://andras.webhop.org/
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