David Megginson wrote:
To the best of my knowledge (whatever that might be ;-) ) the CG moves around, but the aero refference point is steady? Jon, Tony?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).
Erik
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