Word: blade
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Dates: during 1970-1979
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...most promising research is retrogressive. United Technologies is developing a "prop fan"-an eight-blade propeller driven by a jet engine. The blades look like warped boomerangs. They are more efficient for subsonic aircraft than the fanjet engines planned for the 1980s; on flights of up to 1,500 miles, the prop fan would be 40% more fuel economical, since a propeller is more efficient than jet thrust during climb-outs and letdowns. Even so, the boomerang has a problem: excessive noise. Furthermore, how can airlines lure passengers back to a prop after they have flown...
...small marches under his belt, maybe a takeover or two, but clearly nothing that had made a headline. He was only chosen because he had the best equipment. Camping out had been his idea and to no one's surprise, he had turned out with every attachment, extension, and blade accessory money could...
...Gordie Gardiner caught his blade on the rough water churned by a strong tail-wind. The collision jarred Gardiner's oar out of his hand and the entire boat stopped rowing while the bowman, Paul Templeton, handed Gardiner's oar back to him. By the time Harvard got their shell back up to top gear, Brown had sliced the lead to one-quarter of a length. That was as close as the Bruins got. What George Aitken called "some of the best rowing we've done," 40 strokes perminute, stretched the lead quickly to one-half of a length, then...
With the score 4-4 the fencers came together for three consecutive double touches before Kaplan drove Drvobinsky to the end of the strip, feinted high and then disengaged his blade. While running forward, he rammed his blade into his opponent's stomach for the victory...
Vastola sliced the Lion's Wayne Miller, 5-2, in his opening battle, then breezed past Harold Cataquet, 5-2, gaining the last touch by disengaging his blade from Cataquet's before touching the Columbian's upper right shoulder...