Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent
1992-03-13
1994-08-23
Bucci, David A.
Aeronautics and astronautics
Aircraft sustentation
Sustaining airfoils
244 7B, 244 39, B64C 338
Patent
active
053400577
ABSTRACT:
The VTOL aircraft includes a free wing having wings on opposite sides of the fuselage connected to one another for joint free rotation and for differential pitch settings under pilot, computer or remote control. On vertical launch, pitch, yaw and roll control is effected by the elevators, rudder and the differential pitch settings of the wings, respectively. At launch, the elevator pitches the fuselage nose downwardly to alter the thrust vector and provide horizontal speed to the aircraft whereby the free wing freely rotates relative to the fuselage into a generally horizontal orientation to provide lift during horizontal flight. Transition from horizontal to vertical flight is achieved by the reverse process and tile aircraft may be gently recovered in or on a resilient surface such as a net.
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NASA Contractor Report 2946, "Analytical Study of a Free-Wing/Free-Trimmer Concept," Porter et al., Feb. 1978, pp. v-115.
NASA Contractor Report 3135, "Extended Analytical Study of the Free-Wing/Free-Trimmer Concept," Porter et al., 1979, pp. iii-85.
Bidwell Anne E.
Bucci David A.
Freewing Aerial Robotics Corporation
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