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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
