NASA Ames conducted tests to compare the Hiller YROE-1 Rotorcycle's handling qualities with those of larger VTOL aircraft, long after the Marines had rejected it as dangerous to fly. The red box underneath the pilot contains an instrumentation package. This example was later N777MV. Photo by: Dave West / NASA
This photo was added on 30 March 2019, and has since been viewed 1219 times.