Boeing will use GE Aircraft Engines' GE90 exclusively to power the long- range 777X aircraft, a decision that sent the stock of competitor Rolls- Royce down 2.5% yesterday. Pratt&Whitney parent UTC shares rose slightly yesterday. GE's shares gained $4 per share following the engine contract and a larger GE-NBC television deal. Boeing hopes to build 500 of the 777- 200X and -300X twinjets using an 115,000-pounds-thrust growth version of the GE90, called the GE90-115B. It will be ...


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