biplane
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biplane,
aircraft, typically of early design, having two sets of wings fixed at different levels, especially in a vertical stack with the fuselage included between them. See airplaneairplane,aeroplane,
or aircraft,
heavier-than-air vehicle, mechanically driven and fitted with fixed wings that support it in flight through the dynamic action of the air.
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biplane
[′bī‚plān] (aerospace engineering)
An aircraft with two wings fixed at different levels, especially one above and one below the fuselage.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
biplane
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
biplane
a type of aeroplane having two sets of wings, one above the other
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005