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Collins completes high-altitude testing of proposed F-35 power and cooling upgrade

Collins Aerospace has completed altitude testing of its Enhanced Power and Cooling System, a proposed replacement or upgrade for the Honeywell-made system on Lockheed Martin’s F-35. The testing ran for several days at mission-representative power levels and pushed the system to operational limits across multiple altitudes.

Discovered 2026-08-25T13:28:26.876261-07:00 | 2026-08-25T13:28:26.876261-07:00

Briefing

What Hype is tracking

Collins’ EPACS is competing with Honeywell to provide increased electrical power and cooling for the F-35, capabilities that support future aircraft systems.
Testing at mission-representative power levels and across operational altitude limits advances Collins’ proposed solution toward the next stage of evaluation.
The outcome could influence the sustainment and upgrade path for the F-35’s power and thermal-management architecture.

Reported By

FlightGlobal mrobusinesstoday.com worldairnews.co.za