1972 Press Photo Bell helps haul down his tetrahedral kite which lifted a man

Bell helps haul down his tetrahedral kite which lifted a man 168 feet into the air. He tried to design a kite that would develop a certain lift in a wind so that a plane could be built to take off at the same speed, thus increasing the safety factor for future planes. Photo measures 8 x 10.25 inches. Photo is dated 08-07-1972.



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