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Results tagged with noise
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user 8446
Questions related to aviation sound noise or regulations thereof.
4
votes
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What's the EPNdB for large turbofan engines for stage 5 noise regulations?
I'm trying to estimate the Effective Perceived Noise (EPNdB) of the GE9x. GE Aviation says that it will be within 8 dB margin of the stage 5 noise regulations, can anyone confirm that? …
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