Diesel aircraft engines promise lower fuel burn and cheaper operating costs at a time when every gallon and every kilogram matter in the air. Yet as manufacturers push these powerplants into more ...

Add Yahoo as a preferred source to see more of our stories on Google. A high-speed jet experiment at Mach 1.5 helps scientists decode the mystery behind engine noise. | ©Image Credit: Lance Cpl. Tyler ...

A touchy subject in aviation circles is the effect of jet engine noise on human nerves and bodies. Some of the airmen hate to mention it; they fear that people who live near jet bases will blame all ...