De Havilland Canada Dash 8-400 Turboprop Becomes First Regional Aircraft Recertified to Meet ICAO’s Most Stringent Noise Standards

De Havilland Aircraft of Canada Limited (“De Havilland Canada”) has announced that the Dash 8-400 turboprop aircraft has been recertified to meet the latest noise emission standards set by ICAO Chapter 14. The Dash 8-400 aircraft is the first propeller-driven aircraft, and the first regional aircraft in the world, to achieve the certification.

ICAO Chapter 14, which is equivalent to FAA Stage 5 and is the most recent in a series of stringent noise limits introduced by governing bodies to regulate aircraft noise emission, takes effect after December 31, 2020 for all new subsonic jet and propeller-driven aircraft.

Featuring quiet, swept, six-bladed Dowty propellers on Pratt & Whitney Canada PW150A engines, the Dash 8-400 aircraft is engineered with a newly improved, proprietary Active Noise and Vibration Suppression (ANVS) system that effectively reduces the propeller noise level inside the aircraft to maximize cabin comfort. The Dash 8-400 aircraft has been acoustically engineered to mitigate the detrimental effects of noise on human health.