United States of America As Represented by the Administrator of Nasa

Georgia Tech Research Corporation

Brian Joseph German

Daniel Sagan

Jason R Welstead

Siena K S Bennett

A vertical take-off or landing (VTOL) aircraft is disclosed that includes a propulsion system comprising at least four tilting propulsion assemblies and two or more lifting propulsion assemblies. Actuation of the tilting mechanisms can convert the aircraft from a hover configuration, in which all propellers produce thrust generally upward to counteract the aircraft's weight, to a forward flight configuration, in which the four or more tilting propellers produce thrust generally in a forward direction parallel to the fuselage to overcome drag in cruise flight and the lifting propellers produce no thrust or a level of thrust generally less than that required in the hover configuration.

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Atlanta, GA, United States of America

Brian Joseph German