[EMAIL PROTECTED] wrote: > I don't think turning turbulance to zero by dedault is a good solution. > > If the problem is only in JSBSim then it should be fixed. Meanwhile we can pro > vide the zero turbulance workaround in a wiki page or some other place. > The problem is the default AC (c172p) with the default turbulence has the 0 to 500 ft boundary layer turbulence set to 0.1 which is enough to set off this oscillation. > I want to know what is the real cause of the problem. turbulance is just one f > actor of the cause, I think. > > There is a long thread discussing what appears to be adverse aileron yaw. Since most AP's control roll with aileron only, right aileron causes a roll to the right with a yaw to the left. It is so noticeable with the SenecaII (with no auto coordination) that the ball is eventually pegged at one extreme and then the other and you see the yaw response and aileron inputs from the AP almost 180 degrees out of phase. If you turn on auto coordination, the oscillations disappear. I tried Jon Berndt's suggestion of adding a scaling value. It had only minimal affect. Even with this set to 0.0, the yaw problem persists.
-Dave Perry ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
