The propfan, still being tested on the ground, uses a turbine engine to drive a covey of short, radically bent blades made of hi-tech fiberglass composites.

So GE is back on the propfan train again, and through CFM International, a 50/50 joint venture with Safran Aircraft Engines (formerly Snecma) that sadly doesn't produce boots, it announced a new ...

In the 1980s, Boeing pitched a radical new plane: the 7J7. Designed with ultra-efficient propfan engines and advanced carbon fiber structures, the aircraft promised to leap ahead of Airbus with ...