Apparatus for influencing a wing root airflow in an aircraft

Details Apparatus for influencing a wing root airflow in an aircraft Apparatus for influencing a wing root airflow in an aircraft

1998-05-13

2000-11-28

Poon, Peter M.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

244214, 244130, B64C 2306

Patent

active

061524042

ABSTRACT:
An apparatus advantageously influences the wing root airflow along the wing root of an aircraft having a high lift system including leading edge slats provided on the main wings. The apparatus includes a respective vortex generator arranged on the inboard end of each leading edge slat in the area of the wing root, and further includes a respective transition fairing arranged on a separation edge that is let into the leading edge of the wing root and that borders along the inboard edge of the respective slat. The vortex generator is a rigid member fixed to the leading edge slat and may be in the shape of a horn, a disk, or a winglet. The transition fairing may be a rigid member fixed to the wing root along the separation edge, or may be a flexible elastic member that can be inflated to have a variable outer contour. The present system avoids the need of additional independently movable auxiliary flaps, and thus achieves a reduced weight, complexity, and maintenance requirement.

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