| 摘要 |
An extensible and retractable wing flap actuating mechanism particularly designed and adapted for modern heavy cargo aircraft employs gear-driven sliding rails to support and extend the flap and separate gearbox and linkage arrangements buried inside the flap to control the angle thereof. Thus, conventional tracks, rollers, screwjacks and similar relatively complex, heavy and unreliable mechanisms are avoided. Spherical, self-aligning bearings are employed as attachments between the flap and rail/wing structures which allow the conjugate motions of the flap and the structural deflections to occur without binding or jamming the mechanism.
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