Harry: You probably know about this Wright Flyer demo flight film, but just
in case... The below is a post stolen from ras:

Vaughn

Excellent historical film of a 1909 demo flight by the Wright brothers
in France, including a short segment from an on-board camera.

http://www.europafilmtreasures.eu/PY...que.htm?ID=322

Note the presence of yaw strings on the forward elevator!

Frank(TA)