Word: airfoils
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Dates: during 1970-1979
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...Power. Unlike NASA'S traditional configuration, Sandia's upright eggbeater does not have to turn to face the breeze; its symmetrical shape offers the same surface to winds from any direction. Cribbing from jet aircraft, Polytechnic Institute of New York engineers are experimenting with a delta-shaped airfoil used in conjunction with standard windmill rotors. Pointing into the wind, the triangular whig amplifies the wind's power at least fivefold; the wind is focused into whirling streams that strike the rotors. Other teams at General Electric and at Connecticut's Kaman Corp., a helicopter manufacturer...
...only experience with aeronautical engineering was folding paper airplanes for his young son Gary. Then one day, Kline, an advertising agency art director in New York, stumbled on a radically new design; it flew more stably than any previous model, and a lot farther as well. He showed the airfoil to a pilot friend, Floyd Fogleman, who concluded that Kline had inadvertently discovered "a whole new concept in aerodynamics...
Paper-plane builder Kline is sure that he has somehow violated Bernoulli's principle. "Sorry, Bernoulli," he says, "but our airfoil just doesn't work that way." But Aerodynamicist Nicolaides gently points out that there is still a pressure differential between the top and bottom of the wing caused by differences in air flow, although he is not yet sure how this is achieved...
Winner of the race was Bill Sirois, a marine supply dealer from Fort Lauderdale, Fla., whose sleek 21-ft. boat with its "tunnel" hull-an airfoil design that allows the craft to ride free of the chop on a cushion of air-was powered by twin 200 h.p. Mercury engines. He outdistanced Runner-Up Reggie Fountain Jr. by a 12-mile margin to take the $18,000 first prize. In all, Sirois all but flew more than 660 miles at the average rate of 82.5 m.p.h.-nearly 3 m.p.h. faster than the record he set as last year...
...face of the golf club meets the ball absolutely perpendicular to the intended line of flight, the ball will either hook off to one side of the fairway or slice to the other. Sent into a spin by a glancing blow from the club, the ball acts like an airfoil; higher pressure develops on the side spinning in the direction of forward motion and pushes the ball toward the opposite side...