On Tue, 2004-04-06 at 14:21, Jon S Berndt wrote: > On Tue, 6 Apr 2004 16:59:55 -0400 > "Sonny Hammaker" <[EMAIL PROTECTED]> wrote: > >I thought I read somewhere, that in Flight Gear, the CG of your > >aircraft isn't specific to the aircraft itself, but rather related to > >some sort of reference. Is this true? Or did I misinterpret > >something? It also mentioned that you could put the coordinates of > >(0,0,0) for CG location. > > > >sonny > > For a JSBSim flight model, there are a few reference frames of > interest. I just published a newsletter for JSBSim that describes > within it some of the various coordinate frames. Go to www.jsbsim.org, > and click on the newsletter announcement at the top of the main page. > > All points that are specified in the config file are referenced to a > coordinate frame that has the X axis increasing aft, the Y axis > increasing right, and the Z axis increasing up. The origin > technically could be anywhere, but is usually at or near the nose of > the aircraft - although, technically, it *could* be placed coincident > with the CG - even though the CG moves during flight.
or put another way, it could be put at one location of the cg, the origin of the structural frame does not move with the cg. > > Jon > > _______________________________________________ > Flightgear-devel mailing list > [EMAIL PROTECTED] > http://mail.flightgear.org/mailman/listinfo/flightgear-devel -- Tony Peden <[EMAIL PROTECTED]> _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
