Jon Berndt <[EMAIL PROTECTED]> said: > It's neither impractical nor complex. FWIW, there really is a standard > already out there, and we use it. That is, the structural frame, as I have > outlined before. The only problem I see is that the FDM and the 3D model > rendering code need to have a static common point of reference - that's > why I mentioned the farthest point forward, such as the nose or prop hub. > Using the wing leading edge is unsatisfactory: think of the F-16, or the > space shuttle. What do you use in those cases? In the case of the X-15, do > you use the point where the wing meets the fuselage as the "leading edge" > or the point where the leading edge would intersect the centerline? The > nose tip or prop hub is unmistakable. We would report this position to > FlightGear and you would then have intimate knowledge of what to rotate > about.
Yes, I knew this would sound a little complicated with swept,delta,body wing aircraft. But making it the nose really just puts the decision on to the 3D Modeler where to some degree the flight model designer could have a better idea. Isn't there some way of deriving an average or nominal c.g. that we could just lock in as the fixed point? Best, Jim _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
