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Air Force

Separation Established Between F135 ECU and Future F-35 PTMS, Pratt & Whitney Says

Frank Wolfe

Tuesday, August 15th, 2023

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Separation Established Between F135 ECU and Future F-35 PTMS, Pratt & Whitney Says

A U.S. Air Force 354th Aircraft Maintenance Squadron crew chief tows an F-35A Lightning II at Kadena Air Base, Japan on Aug. 7 (U.S. Air Force Photo)

RTX's [RTX] engine subsidiary Pratt & Whitney said that it has established firewalls between its F135 Engine Core Upgrade (ECU) for the Lockheed Martin [LMT] F-35 fighter and the Enhanced Power and Cooling System (EPACS) design effort by another RTX subsidiary, Collins Aerospace, for a new Power and Thermal Management System (PTMS) for the F-35. Honeywell‘s [HON] Torrance, Calif., plant builds the F-35 PTMS, which supplies main engine start and auxiliary and emergency power needs, in addition to 30 Kilowatts…

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