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Air Force

No Power and Thermal Management System Chosen Yet for F135 ECU, GAO Says

Frank Wolfe

Tuesday, May 30th, 2023

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No Power and Thermal Management System Chosen Yet for F135 ECU, GAO Says

A U.S. Air Force F-35A Lightning II assigned to the 354th Fighter Wing, Eielson Air Force Base, taxis during the Arctic Gold 23-2 exercise at Joint Base Elmendorf-Richardson, Alaska on April 18th (U.S. Air Force Photo)

The U.S. Air Force's fiscal 2024 budget asks for $245 million for Raytheon Technologies' [RTX] F135 Engine Core Upgrade (ECU) for the Lockheed Martin [LMT] F-35 and cancels a new adaptive cycle engine for the fighter, but DoD has yet to determine what power and thermal management system (PTMS) it will use for ECU, according to a new GAO report, F-35 Joint Strike Fighter: More Actions Needed to Explain Cost Growth and Support Engine Modernization Decision (GAO-23-106047). The F135 will…

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