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A stationary wall-like plate on the upper surface of a wing, extending chord-wise or substantially parallel to the airstream. It generally extends from one-third up to one-half of the wing chord and is located about two-thirds of the way outward from the span. A fence prevents span-wise airflow, especially in swept wings. Also called a fence
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved