early jet engines were extremely noisy. The status quo is thanks to decades of fighting for better regulation
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As someone who currently lives in a neighborhood that gets frequent jet flyovers, I am thankful for this regulation.
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They're not supersonic on final to Logan, kaputnik
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supersonic final approach has a number of issues beyond noise
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Below 10k feet or in class Bravo airspace speed is limited to 250kts by FAA regulation not at issue in this amendment.
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I see! As long as the noise level is similar to existing jets, this seems fine to me. My concern is all about low-income neighborhoods (1/2)
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Replying to @bojanrajkovic @natfriedman and
that receive a disproportional amount of flyovers as is. Personally, I'm more interested in being KO'd, even if the flight is slower. (2/2)
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the 2 previous supersonic airliners were extraordinarily loud on takeoff. Physics hasn’t changed
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Have any aspects improved in ways that help deaden the noise, though? I'm curious--I admit that I don't know much about this field.
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Yep, physics hasn't changed but engines have :). We have turbofans now, and can eliminate afterburners. Also CFD, better materials.
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I can’t wait to see the supersonic high-bypass turbofan
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