US Patent 8695916 Personal flight vehicle including control system

A personal flight device includes a housing securable to the pilot. The device includes at least one pair of ducted fans, one fan of each pair mounted to each side of the housing. The axis of rotation of each fan is fixed relative to the housing. At least one engine is mounted on the housing for driving the fans and both fans rotate in the same direction for producing thrust. Three pairs of control surfaces, with one control surface of each pair is mounted below each fan of the one or each pair of fans.