"UltraFan features a new engine core architecture and lean-burn combustion system which will contribute to improved fuel burn ...

Boeing designers have begun work on a new commercial jet to replace its venerable Renton-built 737 model, The Wall Street Journal reported late Monday.

Tom O’Leary concedes that most suppliers were sceptical when his start-up, JetZero, approached them a couple of years ago with a business plan to challenge Airbus and Boeing with a bold new commercial ...