Multi-body aircraft with an all-movable center fuselage actively

Details Multi-body aircraft with an all-movable center fuselage actively Multi-body aircraft with an all-movable center fuselage actively

1987-02-12

1988-04-05

Barefoot, Galen

Aeronautics and astronautics

Aircraft structure

Details

244119, 244120, 244 15, B64C 130

Patent

active

047353813

ABSTRACT:
A multi-body aircraft with an all-movable center fuselage 20 which translates relative to two side fuselages 22. At subsonic and transonic flight the center fuselage 20 is in a forward position. At supersonic speeds the center fuselage 20 moves aft so as to ensure optimum aerodynamic interference at particular Mach numbers. This provides an increased shock strength and greater surface area so that significant reductions in zero-lift wave drag can be achieved. This concept allows for a significant increase in the wing aspect ratio which would improve high-lift performance at all speed without incurring a significant supersonic zero-lift wave drag penalty. In addition, an improved low-fineness ratio, high-speed performance is achieved at all speeds and for all flight conditions.

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Anderton, "NACA Formula Eases Supersonic Flight" Aviation Week, Sep. 12, 1955, pp. 12-15.

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