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ROGALLO WING - A flexible, delta-wing plan in which three rigid members are shaped in the form of an arrowhead and joined by a flexible fabric, which inflates upward under flight loads.
In 1951 Francis Rogallo and Gertrude Rogallo applied for a patent for a fully flexible wing with approved claims for its stiffenings and gliding uses, the flexible wing or Rogallo wing, ...
 See also: Flight, Wing, Dynamic, Weight, Speed
  
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