On Wed, 2002-04-10 at 14:43, Frederic Bouvier wrote:
> From: "David Megginson" <[EMAIL PROTECTED]>
> > Frederic Bouvier writes:
> > 
> >  > The c172 is flyable now but I thing the stall don't reproduce the
> >  > real behaviour. I thing it should dive more frankly. Now it seems
> >  > to stay flat !
> > 
> > My changes shouldn't affect the stall, except for any roll component.
> > I've read that the C172 often stalls very gently, so it might not be
> > right to expect a screaming dive -- I haven't tried stalls yet on the
> > real thing.
> > 
> To stall, I try to keep my altitude while the engine is put idle. So I
> should see an increase of the AoA while pulling the stick before the 
> stall and then a decrease to a negative number. Now in real life I would
> release the stick and push the throttle to recover 300ft lower.
> 

>With the JSBsim model, I don't see the decrease of AoA at stall. 

This is due to the lack of stall hysteresis modeling.  We'll need to
do some infrastructure work before we can support this.

> Instead,
> the plane keeps it AoA with the stick completely pulled.

It does actually lose some as it goes over the top of the lift curve,
but I do agree that it's not nearly enough.


> It do not swivel
> aroung its CG like a real plane !


> 
> -Fred
> 
> 
> 
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