Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane sustained
Patent
1994-05-09
1996-11-19
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft, heavier-than-air
Airplane sustained
244 1711, 2441181, 2441291, 343705, B64D 4700
Patent
active
055754384
ABSTRACT:
An unmanned aerial vehicle (UAV) has a toroidal fuselage and a rotor assembly having a pair of counter-rotating rotors secured in fixed coaxial combination with the toroidal fuselage to provide a vertical takeoff and landing (VTOL) capability for the UAV. One embodiment of the VTOL UAV is especially configured for ground surveillance missions by the inclusion of an externally mounted, remotely controllable stowable sensor subsystem that provides an azimuthal scanning capability and a predetermined elevation/depression scanning capability to accomplish the ground surveillance mission and a foldable landing gear subsystem to facilitate landing of the VTOL UAV at unprepared ground surveillance sites.
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Cycon James P.
Ferraro John
McGonigle Kevin P.
Barefoot Galen L.
Radke Terrance J.
United Technologies Corporation
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