Technician from Office of Naval Research (ONR) participates in freeflight after extensive testing for the Hiller Flying Platform. The platform was first flown in public in 1955. (Photo by US Navy/Getty Images)
Technician from Office of Naval Research (ONR) participates in freeflight after extensive testing for the Hiller Flying Platform. The platform was first flown in public in 1955. (Photo by US Navy/Getty Images)