Posté : mercredi 02 août 2006 12:38
Le système ANR du Saab 2k, est trés efficace.
Ce qui fait qu'objectivement, cet avion largement du niveau sonore du 5 APUs grand breton cité plus haut et de la plupart des autres jets régionaux.
Aprés ... subjectivement ...
Ce qui fait qu'objectivement, cet avion largement du niveau sonore du 5 APUs grand breton cité plus haut et de la plupart des autres jets régionaux.
Aprés ... subjectivement ...
The idea of canceling low-frequency noise inside vehicle cabins has
received much attention. Most major aircraft manufacturers are
developing such systems, especially for noisy propeller-driven
aircraft. Speakers in the wall panels can reduce noise generated as
the propeller tips pass by the aircraft fuselage. For instance, a
system by Noise Cancellation Technologies (NCT) now comes as standard
equipment on the new Saab 2000 and 340B+ aircraft. The key advantage
is a dramatic weight savings compared to passive treatments alone.