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Tumble wings may be made of any material that supports some stiffness for form, such as paper, plastic, metal, composites or wood. Many leaves falling from trees become tumble wing gliders. Tumbling wings generate lift by alternately flying and stalling as the angle of incidence changes with the spinning motion (see magnus effect and flettner ...
Time published an April 2, 1973 article, The Paper-Plane Caper, [2] about the paper airplane and its Kline–Fogleman airfoil. Also in 1973, CBS 60 Minutes did a 15-minute segment on the KF airfoil. CBS reran the show in 1976. [citation needed] In 1985, Kline wrote a book entitled The Ultimate Paper Airplane. [3]
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A simple folded paper plane Folding instructions for a traditional paper dart. A paper plane (also known as a paper airplane or paper dart in American English, or paper aeroplane in British English) is a toy aircraft, usually a glider, made out of single folded sheet of paper or paperboard.
For example, using a lower paper density will reduce a paper walkalong glider's wing loading and thus its air speed. [ 6 ] [ 7 ] Walkalong glider designs have differing wing loadings, for example, the tumblewing type designs will have lower wing loading than traditional nose weighted paper airplane designs made from the same paper density. [ 8 ]
The technique, used and patented by the Wright brothers, consisted of a system of pulleys and cables to twist the trailing edges of the wings in opposite directions. In many respects, this approach is similar to that used to trim the performance of a paper airplane by curling the paper at the back of its wings. [1]
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National Paper Airplane Day is an unofficial observance, celebrated on May 26 each year in the United States to commemorate the simple aeronautical toy. [1] Paper airplane day celebrations typically include social gatherings at which participants create and fly paper airplanes. These events often feature contests in two basic flight categories ...