Pratt & Whitney's F135 Enhanced Engine Package (ECU) is the most cost effective, lowest risk propulsion modernization solution for the F-35. ECU can enable full Block 4 weapons system capability for the warfighter and reduce lifecycle costs …

Our F135 Engine Core Upgrade (ECU) incorporates next-generation adaptive propulsion technologies that offer increased thrust and fuel efficiency, as well as thermal management capacity to keep the F-35 weapon system a step ahead.

Nov 28, 2023 · The F-35 Joint Program Office has officially announced plans to issue multiple sole-source contracts to Pratt & Whitney to upgrade the fighter’s F135 engine—a widely expected move after Pentagon officials indicated they would do so earlier this year instead of developing an entirely new engine.

Sep 30, 2024 · The F135 ECU will be incorporated into F-35s at the point of production or retrofitted at one of the multiple F135 depot sustainment facilities around the world and will be available to all F-35 operators.

Jul 15, 2024 · During the PDR, Pratt & Whitney and the F-35 Joint Program Office evaluated the ECU's design changes and propulsion technologies, both of which are needed to restore full life to the engine and provide improved performance to enable next generation weapons and sensors.

Aug 29, 2023 · The F135 ECU can deliver the needed capability for Block 4 aircraft faster, cheaper and with less risk than a new, unproven engine and can cover power and thermal management system growth to the maximum capability of the F-35.

Oct 2, 2024 · Pratt & Whitney has drawn a U.S. Dept. of Defense contract valued at up to $1.3 billion for ongoing work on the F135 Engine Core Upgrade – the multi-year effort to advance the capabilities and durability of the F-35 Joint Strike Fighter propulsion system.

The F135 Engine Core Upgrade (ECU) delivers the durability and performance needed to enable Block 4 capabilities and beyond. Easily retrofittable in all F-35 variants, ECU delivers substantial life cycle cost saving while enabling the increased power and thermal management capacity needed to support next generation weapons systems and sensors.

Mar 26, 2024 · Pratt & Whitney has received full funding for the modernization of the F-35 Lightning II propulsion system. The F135 Engine Core Upgrade (ECU) program was allocated $497 million in the US Fiscal 2024 Defense Appropriations Bill for the company’s detailed design of the new engine to be presented later this year.

Jul 16, 2024 · The engine developer has delivered more than 1,200 F135 production engines, with more than 860,000 engine flight hours recorded. The F135 ECU will be integrated into F-35s at production points or retrofitted at F135 sustainment facilities around the world.