On Sun, 17 Oct 2004 18:40:23 +0200, Erik Hofman <[EMAIL PROTECTED]> wrote:
> > A little left bank was preceeded by a right one. > These oscillations can happen when new weather is fetched. I would urge > to try without this option and then report back. Actually, it sounds like adverse yaw, not an oscillation (i.e. it's not going back and forth repeatedly). That kind of adverse yaw, caused by higher induced drag on the up-going wing, was common in planes before the mid 1930's but is pretty rare today because of tricks like differential aileron deflection and Frise ailerons (both of which increase drag on the down-going wing to compensate) -- instructors have to snap a 172 or a PA-28 into a roll very hard to demonstrate even a slight adverse yaw to their students, and even then, its 50:50 whether they'll see anything. If the 737 is a JSBSim model, the amount of adverse yaw will be controlled by CnDa (yaw moment due to aileron deflection) and Cnp (yaw moment due to roll rate), I think. I don't remember how YASim handles it. All the best, David -- http://www.megginson.com/ _______________________________________________ Flightgear-users mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-users 2f585eeea02e2c79d7b1d8c4963bae2d
