F-18 jet engines quietened with new nozzle design

Jet aircraft are all loud, but few are as loud as the F-18 fighter jet. Researchers from the University of Cincinnati have created a new engine nozzle designed for F-18 fighter planes. According to the team, the new nozzle reduces the sound created by the jet engine without impacting its performance. Researchers tested their new designs on 1/28th scale jet …