F-15EX c BoeingThe US Air Force (USAF) is asking for engine proposals for its Boeing F-15EX programme, only a few months after saying it would grant a sole-source award to GE Aviation for 480 F110 jet turbines. The USAF received pushback on its sole-source plan from Pratt & Whitney (P&W). That company’s F100 engine powers the service’s fleet of legacy F-15C/D and E fighters.


The air force initially planned a sole-source acquisition of GE’s F110 because P&W’s F100 was reportedly not certified for the EX model, meaning that integration and evaluation of the engine on the fly-by-wire fighter would have slowed acquisitions.

The USAF declared it was pursuing a sole-source contract with GE in January, but formally rescinded that effort on 23 March, according to a notice posted online....MORE

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