Biplane is an aircraft wing configuration
mainly used in early 20th Century and most recently in acrobatic aircraft, it basically consists in a two-wing set one under and other over the top of the plane being over each other.
It's also the oldest airplane type ever known, which means a lot for aviation history since Wright Flyer, the first airplane in history featured this wing type.
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Trivia[]
- There are no biplanes with tricycle langing gear.