Jm. Shippen, MEASUREMENT OF AUTOGYROCONTROL FORCES, Proceedings of the Institution of Mechanical Engineers. Part G, Journal of aerospace engineering, 212(G1), 1998, pp. 57-60
An attempt is made to construct a data-acquisition system to measure t
he in-flight loads of an autogyro. These results give an indication of
the scale of pilot forces and of those acting in the control linkage
of the rotor.