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While P&W maintains the F135 can operate under such conditions, it comes at the cost of longevity. That requires diverting additional bleed air to the PTMS, reducing engine performance and increasing degradation. However, as capability improvements have been made to those systems since the jet’s debut, the onboard power and cooling requirements have grown. Siphoning so-called bleed air from the engine, the PTMS provides electrical power and cooling to the fighter’s radar and advanced sensor package. The F-35 PTMS works in tandem with the jet’s single Pratt & Whitney (P&W) F135 engine. “That is expected to support the cooling needs for the remainder of the F-35 life cycle.” “This development can really carry improvements for the F-35,” Brooks says. Speaking at the 2023 Paris air show in Le Bourget, Collins’ president of power and controls Henry Brooks says based on initial test results, EPACS will provide more than twice the cooling capacity of the F-35’s Honeywell PTMS. While the Pentagon is planning an engine upgrade for its F-35 fleet, government auditors say the advanced jets will also need a more capable power and cooling system
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US Air Force F-35As taxi on the flight line at Spangdahlem Air Base, Germany in 2019. Source: US Air Force photos by Airman 1st Class Jovante Johnson and Airman 1st Class Valerie Seelye | Airline Business special: CEOs to watch in 2021.FlightGlobal Guide to Business Aviation Training and Safety 2021.EDGE: A new global force in aerospace and defence.Shell Aviation: What will it take to Decarbonise Aviation?.What does the future of aviation look like in 2022?.Guide to Business Aviation Training and Safety 2022.
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What will it take to Decarbonise Aviation?.Airline Business Covid-19 recovery tracker.
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