Paul MacCready; seen here piloting a sailplane; was in a league of his own as inventors; and pilots; was inventor of the Gossamer Condor & Albatross; (twice winner of Kremer prizes);?and?a wing-flapping flying scale model of a Pterosaur; among many unique 1956 he became the first American pilot to become the World Soaring Champion. He devised the MacCready Theory on the correct speed to fly a glider depending on conditions and based on the glider's rate of sink at different

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Photo credit: © William Warren / Alamy / Afripics
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Keywords: aeronautical, aerovironment, americans, aviation, canopy, color, daytime, engineer, engineering, famous, flying, glider, head, inventor, man, middle-aged, outdoors, person, pilot, portraits, sailplane, shoulders, usa, vertical, whites