Word: airscrew
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Dates: during 1930-1939
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...ownership papers to the 63-foot Winnetta, a 35-year-old schooner which in her $75,000 prime had once raced her sticks off on the Great Lakes, in more recent years had been the little-used property of fiftyish John S. Nairns, an inventor preoccupied with developing an airscrew for propelling ships. Inventor Nairns had sold the Winnetta's motor, but he still had the masts and sails in storage. Last week, lucky Tex scrubbed and buffed away at the Winnetta, dreamed of starting off round the world...
...blade), the S. S. Normandie last month recaptured the Atlantic speed record (TIME, Aug. 16). Even more striking are the results that have been attained in the last four years by changing the design of airplane propellers. Until 1933 there had been only two major improvements in the paper airscrew invented by Leonardo da Vinci some 450 years before to pull toy helicopters to the ceiling of his study. One was the Wright Brothers' development of a two-bladed '"prop" of laminated wood, the other the shift in the 19205 to aluminum alloy blades whose pitch could...
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