I wrote: > I need to get per-gear tunable spring constants and damping > coefficients working; the automatically generated ones are almost, but > not quite, good enough for all cases.
Well, that was easy enough. You can now use "spring" and "damp" attributes on gear objects to modify the default ones you get out of the solver. These are unitless scalars, specify "0.5" if you want half the damping coeffient, etc... I've checked this in, as well as a change to the 747 nose gear that fixes the wobble and bounce issues. Someone with more experience than I should try the result to see that I got it right. The nose gear now just barely bottoms out when you whip the nose down from a "tail dragging" situation with full braking and full down elevator, comes up but doesn't leave the ground, and oscillates once or twice. That seems like it would be the design goal for the real thing, but I dunno. Maybe it should have more bounce? Some of the other YASim planes could probably use some gear treatment too. The default damping is probably too stiff for the 172 and Cub, which have spring steel gear. Andy -- Andrew J. Ross NextBus Information Systems Senior Software Engineer Emeryville, CA [EMAIL PROTECTED] http://www.nextbus.com "Men go crazy in conflagrations. They only get better one by one." - Sting (misquoted) _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
