Aesir Coanda-effect VTOL UAV

Aesir video of its prototype vertical take-off and landing unmanned aircraft, which uses the Coanda effect to generate lift by blowing air from a central fan over its curved surface. Aesir was formed to develop the UAV when original developer GFS Projects ran out of money - GFS stood for Geoff’s Flying Saucers, named after original designer Geoff Hatton. See . For a video of the latest Embla demonstrator flying (with sound), go to