3 ms·

Here you go, pg 16 for the noise study: https://www.toronto.ca/wp-content/uploads/2017/11/9936-porter-cs100-aircraft-noise-assessment.pdf https://www.toronto.ca

Here you go, pg 16 for the noise study: https://www.toronto.ca/wp-content/uploads/2017/11/9936-porter-cs100-aircraft-noise-assessment.pdf https://www.toronto.ca/wp-content/uploads/2017/11/9936-porte... The Cseries was to be up to 1db louder than q400s, but people may find jet noise less annoying than a warbling turboprop. This study predated the actual flight tests as I understand it.

ShroudedNight 4y ago
Thanks. I see they didn't have specifics for the various scenarios at that point, but found them here: https://www.easa.europa.eu/downloads/20962/en https://www.easa.europa.eu/downloads/20962/en It looks like they were ~3db off the mark for lateral, but were quieter than the Q400 on approach.