Variable-area fan nozzles on the latest high-bypass engines could increase fuel efficiency and reduce airport noise. Pratt & Whitney is introducing the concept on its PW1100G for the Airbus A320NEO.

If you’ve ever seen the back end of a military jet, you’ve likely seen variable area nozzles. They’re used to adjust the exhaust flow out of the rear of a jet engine during supersonic flight and while ...

SS White Technologies (H4/A4) is providing key components for Pratt & Whitney's variable area fan nozzle technology on the Bombardier CSeries programme, the US-based component supplier says. The Pratt ...

As one of the world's most powerful fighter aircraft currently in service, the F-22 Raptor is a marvel of technological achievement. Made from some of the most advanced and durable metals and material ...

PACCAR has filed a patent for a variable geometry turbine (VGT) that includes an adjustable nozzle and a controller. The nozzle is calibrated during normal operation by adjusting it towards a closed ...