
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…