biplane

n. airplane with a double set of wings

A biplane is a fixed-wing aircraft with two main wings. The first powered heavier-than-air aircraft, the Wright brothers' Wright Flyer, used a biplane design, as did most airplanes in the early years of aviation. While a biplane wing structure has several advantages it inevitably produces much more drag than a similar monoplane wing. Improved structural techniques and materials, and the need for greater speed, effectively made the biplane configuration obsolete for most purposes by the late 1930s.
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Noun
1. old fashioned airplane; has two wings one above the other
(hypernym) airplane, aeroplane, plane

     plebian

biplane /'baiplein/
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