David Megginson wrote: > This one happens with single-engine airplanes as well. If you yank > the nose up suddenly, you get a yaw to the left; if you push the nose > down suddenly, you get a yaw to the right. I can imagine, though, > that the effect is much more dramatic with that big gyro spinning up > top.
Right, but there you can model the aircraft as a rigid body with some "extra torque" applied by a single rotational inertia. You just sum them all together and things work out; this effect works fine in YASim, for example. But with a rotor, you don't have a rigid body to work with as a base. You're constantly playing mind games with the rotational dynamics, because your intuitions about summing forces just don't work. Andy _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
