Hiller Flying Platform (Model 1031-A-1) ... Thus, the Office of Naval Research funded the development of a prototype coleopter, or ring-wing VTOL aircraft, consisting of a lengthened ducted fan, which ...

Flying drones could soon re-charge while airborne with new technology Date: October 20, 2016 Source: Imperial College London Summary: Scientists have demonstrated a highly efficient method for ...

Saturn's 'flying saucer' moons built of ring material. By Maggie Mckee. 6 December 2007 ... But one theory suggests that early in the solar system, one or more large, ...

Hiller Flying Platform (Model 1031-A-1) ... Thus, the Office of Naval Research funded the development of a prototype coleopter, or ring-wing VTOL aircraft, consisting of a lengthened ducted fan, which ...