| 摘要 |
In order to increase the lift from aircraft wings, a reduced pressure is produced on the underneath of the profile (1) in the region of the trailing edge (2). This reduced pressure is produced on the principle of a Venturi tube. It is passed through a gap (slot) (4) to the top of the wing and there influences the prevailing flow. Since the reduced pressure which is produced depends on the airspeed, the lift coefficient cA of the wing is in consequence also dependent on the airspeed. In order to increase the maximum lift coefficient cAmax, the gap (4) is covered on both sides by a perforated strip. In this case, a lift aid has been created using simple means, which is used both in slow flight as well as in cruising flight and when gliding. <IMAGE>
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