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Air Force

Replacing F-35 PTMS May Cost $3 Billion, Honeywell Estimates

Frank Wolfe

Monday, August 14th, 2023

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Replacing F-35 PTMS May Cost $3 Billion, Honeywell Estimates

U.S. Air Force Secretary Frank Kendall addresses the 48th Fighter Wing during a base-wide all-call at RAF Lakenheath, England on July 13 (U.S. Air Force Photo)

Whether and when the Lockheed Martin [LMT] F-35 fighter will need a new Power and Thermal Management System (PTMS) or an upgrade has been a matter of debate within industry and the F-35 program. 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 of aircraft cooling. RTX's [RTX] Collins Aerospace said at June's Paris air show that the company had conducted a lab test…

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