On Monday 20 Jun 2005 21:17, Andy Ross wrote: > Lee Elliott wrote: > > This isn't intended as a knock at YASim at all - I like it a > > lot - but consider the Handly Page Victor, which had cresent > > shaped wimgs, for example, or the rounded wing tips on the > > B-29 for that matter. > > If you really want to get fancy, you can simulate funny > surfaces piecewise using extra vstab objects. But in > practice, that's very unlikely to be useful. > > YASim isn't a fluid dynamics simulator, which is basically > required for turning details like wing planform or airfoil > shapes into actual performance data. And in practice that > kind of shape data needs to be far (!) more accurate than a > typical 3D model polygon mesh. If you have the software and > the micro-detailed mesh, then that's clearly the way to go. > But for interactive flight simulation, it's just a > non-starter. > > In principle (modulo bugs and configuration glitches, > obviously) a well-configured YASim model generates aerodynamic > results that are about as good as you can get without access > to the original design plans or test data. > > Andy
mstabs are probably better for wings;) Actually, I did the Canberra wing using both a wing object and an mstab object. LeeE _______________________________________________ Flightgear-users mailing list [email protected] http://mail.flightgear.org/mailman/listinfo/flightgear-users 2f585eeea02e2c79d7b1d8c4963bae2d
