Diesel aircraft engines promise lower fuel burn and cheaper operating costs at a time when every gallon and every kilogram ...

From an acoustic standpoint, the C-5’s sound is the result of several interacting phenomena. The most prominent contributors ...

A breakthrough study has revealed why emerging electric aircraft engine technology sounds so annoying -- and how to fix it. A breakthrough study has revealed why emerging electric aircraft engine ...

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 ...