Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent
1987-11-02
1992-06-02
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft sustentation
Sustaining airfoils
89 1801, 244120, 244218, B64C 130, B64C 356
Patent
active
051180529
ABSTRACT:
A Variable Geometry Remotely Piloted Vehicle (VG-RPV) has a main fuselage portion supporting at one end main wing panels and a forward fuselage portion. In the stowed position, the main wings and forward fuselage portion are laterally adjacent the main fuselage. This provides compact volume of small dimensions for stowage inside a canister. When deployed for flight, the wings are inclined at a large angle to the main fuselage, and a fuselage forebody is positioned upstream of the main fuselage, to establish a vehicle center of gravity adjacent to the deployed wings. Folding panels are mounted on chordwise hinges at the tip of the main wing panels. These panels overlap the main wing panels in the stowed configuration, inside the canister or on deck, and extend the span and area of the deployed main panels in the flight configuration. In-flight deployment is provided to launch the VG-RPV with a reduced span and area with the folding panels placed under the main panels. After launch, but prior to slow speed flight, aerodynamic in-flight deployment of the folding panels is aided with trailing tabs on the folding panels.
REFERENCES:
patent: 2673047 (1954-03-01), Scarato
patent: 3139248 (1964-06-01), Alvarez-Calderon
patent: 3703998 (1972-11-01), Girard
patent: 4240601 (1980-12-01), Reed
patent: 4471923 (1984-09-01), Hoppner et al.
patent: 4667899 (1987-05-01), Wedertz
Chambon et al, "Convertible-Airplane" Aug. 1986.
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