external aileron

external aileron

[ek′stərn·əl ′ā·lə‚rän]
(aerospace engineering)
An aileron offset from the wing; that is, not forming a part of the wing.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

external aileron

An aileron mounted clear of the wing but having conventional movement. This arrangement is rarely used anymore and was restricted to some very early machines and to ultralights.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
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