I also find the DC-3 a little harder to control on takeoff, and am considering increasing the rudder effectivity a bit, but as far as I know, *all* taildraggers are naturally unstable on the ground when the tailwheel pops up (i.e. any turn automatically increases unless corrected) -- that's what makes them so much fun.
You can make the ground handling much better (and probably more realistic) for the dc3 by increasing the effectivness of hstab to 3.5 and/or adjusting the CG even more (I find making the mass -2500 a good number). The real stability killer is that you can't very easily get up on the main gear w/o inducing a bouncing problem. With either or both of the above changes, the dc3 is only a little harder to keep down the center line even with the tail gear unlocked. Any taildragger will ground loop if you allow it to get much yaw on the ground. This is because on the ground, the center of drag is in front of the center of gravity. I really think that the problem is the CG location, but the yasim FDM does not converge due to insufficient elevator trim if you move the CG any more.
I do enjoy the taildraggers! Dave
_______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
