Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent
1984-12-31
1987-02-03
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft sustentation
Sustaining airfoils
244215, 244130, B64C 350, B64C 138
Patent
active
046404775
ABSTRACT:
An improvement to close an opening formed in the leading edge of an airfoil when a slat is moved to its deployed position. The track which deploys the slat has a downward component of motion which leaves an opening in the wing leading edge that can cause premature stall in the opening is not closed. To close this opening, there is a door which is mounted about an axis of rotation that is positioned in a vertical plane generally parallel to the movement of the track. Further, the axis of rotation is slanted so that the door moves upwardly, rearwardly and laterally to its retracted position so as to permit the track to be retracted, and when the track is extended, a spring moves the door into its deployed position to close the opening.
REFERENCES:
patent: 2381679 (1945-08-01), Maxwell
patent: 2381680 (1945-08-01), Maxwell
patent: 3968946 (1976-07-01), Cole
patent: 4042191 (1977-08-01), Johnson
patent: 4189121 (1980-02-01), Harper et al.
patent: 4360176 (1982-11-01), Brown
Barefoot Galen L.
Fiorito Lynn M.
The Boeing Company
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