A version of this article appears in the September 1 issue of Aviation Week & Space Technology. The top airframe manufacturers have long since crossed the Rubicon when it comes to adopting large-scale carbon-fiber reinforced plastics and other structural composites for lower weight and greater efficiency. But when it comes to engines, the heaviest parts of the aircraft, hot exhaust means there are few alternatives to the titanium and super alloys used today. However, all that could be ...


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