General Electric designed this proof-of-concept turboprop “unducted fan” engine as part of NASA’s Advanced Turboprop Project, which was aimed at overcoming the three-fold increase in fuel prices ...

At the Paris Air Show last week one of the biggest stories was the future of the smaller airliners. And while the focus was firmly based on the reality of what will be flying next, there was some talk ...

In the 1980s, Boeing unveiled the 7J7—a twin-aisle, propfan-powered aircraft designed to replace the aging 737 and 727 fleets. Promising 60% fuel savings and faster boarding, the 7J7 aimed to ...

1. GE Aviation is advancing jet propulsion and its next-generation engine core program, called eCore, through several private- and government-funded R&D programs, many with key technology milestones ...

Pratt & Whitney's greatest commercial-engine gamble in decades is now running on a test stand in Florida. P&W believes its GTF geared turbofan is a "game changer" that can address both the aviation ...

General Electric is joining with NASA to revive studies of its long-abandoned GE36 unducted fan, or “open rotor” and is simultaneously launching a next-generation CF34 technology effort as part of a ...

The Open Fan demonstrator will also be a puller, or tractor, configuration with a single stage of rotating blades and a second nonrotating stage of active, variable-pitch stators. Credit: CFM CFM ...