In the 1960s and 1970s, Francis Rogallo at NASA, designed the Rogallo wing, which found its greatest success in hang gliders and kites. As of 2003 Rogallo had recent designs for kites.
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... has palatal, retroflex, and alveolar sibilants. Rounding out the consonants are the voiced and voiceless h (the voiceless h, called the visarga[?], tends to repeat the ...