Flexible control surface drive for folding wing aircraft

Details Flexible control surface drive for folding wing aircraft Flexible control surface drive for folding wing aircraft

1987-11-02

1988-10-25

Barefoot, Galen

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

B64C 356

Patent

active

047798203

ABSTRACT:
A flexible rotary coupling is provided to transfer rotary power across the wingfold access of a folding wing aircraft. The flexible rotary coupling has a step-up gear box on the inboard wing section to increase the rotational velocity of the flexible coupling. The outboard wing section has a step-down gear box to decrease the rotational velocity of the flexible coupling to that of the step-up gear box input. In this way, substantial rotational power can be transferred across the wingfold axis through the flexible coupling axis with a thin, highly flexible shaft. A guide mechanism is provided to store excess shaft length when the wing is in the unfolded (i.e., straight) position.

REFERENCES:
patent: 1928336 (1933-09-01), Kindelberger
patent: 2861758 (1958-11-01), Howard
patent: 3173629 (1965-03-01), Uhor
patent: 4256277 (1981-03-01), Embree
patent: 4284254 (1981-08-01), Rieben

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