Instead of tubular commercial aircraft, other designs could be used in the future: Jets with a blended wing body would fly more efficiently and make less noise -- but how would the noise emissions ...

Aircraft noise is often a nuisance for people living near airports and in flight paths – and, in the worst case, a health hazard: from sleep disorders to cardiovascular diseases. According to a report ...

How chevrons worked with the setting and technologies of the 2000s, but haven't worked since and might not work in the future ...

University of Cincinnati doctoral student adjusts a jet engine mounted to the floor of an anechoic chamber to study jet noise. Jet engines can make a symphony of sound from rumbles and roars to ...

Whatever other qualities they may possess, jet fighters are not known for their quiet engines. They could soon become considerably less noisy without any loss in performance, though, thanks to a ...

NASA's Glenn Research Center has been an integral part of the nation's mission to reduce aircraft engine noise for over 70 years. The center's journey in quieting jet engines has evolved into a ...

Anyone who has lived near an airport can attest that airplane engines are loud. If you've ever lived near a military air base, you know that fighter jets can have some of the loudest. The turbulence ...