On Mon, 2002-12-16 at 04:07, Erik Hofman wrote:
> David Megginson wrote:
> > Erik Hofman writes:
> > 
> >  > But then again, how about the aero refference point?  This is
> >  > single the location in the aircraft that can be used to describe
> >  > the aircrafts flightpath because all other locations will rotate
> >  > around it in flight. This point has to be known by 3D modellers
> >  > already because the aircraft will rotate around that point (which
> >  > basically makes it the origin for the model).
> > 
> > As others have mentioned, though, that point moves around during
> > flight depending on how the plane is loaded, how much fuel you've
> > burned, whether you're subsonic or supersonic, whether the flaps
> > are extended, whether you've just dropped skydivers or a bomb,
> > etc. etc.  In a Cessna 150, the change is going to be very small; in a
> > supersonic bomber, the change might be very, very large (I'm just
> > guessing, though).
> 
> To the best of my knowledge (whatever that might be ;-) ) the CG moves 
> around, but the aero refference point is steady? Jon, Tony?

No, it doesn't, but you can't exactly walk up to the aircraft and point
at it either.

> 
> Erik
> 
> 
> 
> 
> 
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-- 
Tony Peden <[EMAIL PROTECTED]>


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