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Rogallo wing : ウィキペディア英語版
Rogallo wing

The Rogallo wing is a flexible type of airfoil. In 1948, Gertrude Rogallo, and her husband Francis Rogallo, a NASA engineer, invented a self-inflating flexible wing they called the Parawing, also known after them as the "Rogallo Wing" and flexible wing. NASA considered Rogallo's flexible wing as an alternative recovery system for the Mercury and Gemini space capsules, and for possible use in other spacecraft landings, but the idea was dropped from Gemini in 1964 in favor of conventional parachutes.
==History==
Rogallo had been interested in the flexible wing since 1945. He and his wife built and flew kites as a hobby and, since they could not find official backing for the wing, including at Rogallo's employer National Advisory Committee for Aeronautics (NACA), they carried out experiments in their own time. By the end of 1948 they had two working designs using a flexible wing — a kite they called "Flexi-Kite" and a gliding parachute they later referred to as a "paraglider".〔''In the Service of Apollo'' NASA〕 Rogallo and his wife received a patent on a flexible square wing in March 1951. Selling the Flexi-kite as a toy helped to finance their work and publicize the design.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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