Q: I have a 1998 Chevy 2500 van with a 5.7-liter gas engine. It has a clutch fan that sounds loud at times, and I feel it is a waste of horsepower. I want to remove it and install an electric one. The ...

MODANE, FRANCE—Wind tunnel evaluations are giving Safran confidence about meeting the targeted noise levels of the RISE open-fan engine demonstrator, company executives said during a visit to an ONERA ...

European Union targets for simultaneously cutting jet engine noise and carbon dioxide emissions can only be met by technology breakthroughs, say engine manufacturers. In Budapest this month the final ...