Pratt & Whitney reached a new milestone in its road map for upgrading the F135 turbofan that powers the Joint Strike Fighter, and is looking to leverage that success to help secure the next generation of fighter propulsion.  The engine maker recently completed key tests of a proposed core upgrade package for the F135, confirming the potential for substantial fuel savings and higher thrust as soon as 2020. Crucially, the improved performance would come at a reasonable price to the ...

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