No new airplanes can quite meet the the capability so they've stuck with it, though once the frames hit 75,000 cycles they're done... no exceptions.
Calgary's noise procedure does nothing to quiet down the -200... no jet turns below 6,500 feet ASL, and FAA stage 2 noise planes are supposed to go off 35L (wind permitting) though I assume all operating into YYC have hushkits. I dunno how closely they adhere to this anyway. Whoopee.
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