Word: supressor
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Dates: during 1958-1958
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...stream and funneling it through 21 narrow after tubes instead of one big tube. "The big, doughnut-shaped exhaust roar," said a Boeing engineer, "was broken down into 21 smaller, bagel-sized noises." The loss in efficiency: only 2% loss in thrust (v. up to 20% in earlier supressor devices), plus a 2% increase in fuel...
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