I won't be able to fly until April, but maybe one of
you southwestern
types could provide some video of the yaw string through
2 or three
full rotations. We can discuss this ad nauseum, but
a few pictures
would make the discussion much more interesting and
possibly fruitfull.
Andy, you up for it?


Good idea.

I've just looked at some video I took in 2003 which
includes a 1 turn spin in each direction.

Initially, as the nose drops, the yaw string points
inside the spin, i.e. a spin to the right, the string
says use more right rudder. Once the glider starts
rotating, the string points outside the spin, i.e.
spinning right, string says use left rudder.

Can't post it, nowhere to put it.

Ed.
(Pilatus)