On Friday 26 Jun 2009, Maik Justus wrote: > Hi LeeE > > leee schrieb am 26.06.2009 13:57: > > I just thought I'd point out that the YASim solver sets the > > incidence for the <hstab> element, not the <wing> element. > > Thanks for correcting me. I checked the code. The only difference > between wing and mstab are: > - you have to define one wing (only for aircrafts, not for > helicopter) - the wing is used for calculating the ground effect, > the mstab isn't > > > ... > > For the main lifting surface then, using a full-span <wing> > > element will give more accurate results than a combination of > > <wing> and <mstab> elements because the <mstab> elements will > > be ignored. > > As I wrote: I think the only difference is the ground effect, not > more. Am I wrong? > > Maik
That's interesting (re the only difference seeming to be in ground effect). However, I found huge differences between the solutions when I was developing the Canberra and the solutions I got with using a <wing> & <mstab> combination certainly suggested that only the <wing> element was being used. I was very careful to match the geometry and characteristics of the <mstab> element to the <wing> element, the only real difference being in taper, so the two solutions should have been quite close, but in practice they were radically different. LeeE ------------------------------------------------------------------------------ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
