Ames aerodynamicists tested a wide variety of VTOL aircraft and helicopters during the 1960's Here the Hiller rotorcycle YROE-1, made by Hiller Helicopter in nearby Palo Alto, California, hovers in front of the Ames Hangar. The Rotorcycle was a small, 500pound, single-place helicopter. Tests indicated that the vehicle was unsafe because of low yaw-control capability to the right; the design also had oor crashworthiness. ARC-1963-A-31028