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Honeywell Cooling Technology Will Enable Next Generation Of F-35

Honeywell Cooling Technology Will Enable Next Generation Of F-35

Honeywell’s proven, low-risk and reliable F-35 Power and Thermal Management System cooling capability can now be increased to 80kW

PHOENIX, March 12, 2024 – Honeywell (NASDAQ: HON) announced today it has successfully demonstrated the ability to upgrade the current cooling capacity of the F-35’s Power and Thermal Management System (PTMS) to 80kW. Honeywell has been the supplier of the F-35’s PTMS for the past two decades and will now be best-positioned to support future mission systems’ modernization requirements. With this significantly enhanced cooling capability, Honeywell now far exceeds the current 32kW cooling needs of the U.S. military and its allied partners.

Although Honeywell’s PTMS meets the current airframe requirement in service for the F-35, the F-35 Lightning II Joint Program Office (JPO) indicated in 2023 that more cooling power would be needed in the F-35 to support advanced avionics in future generations of aircraft. Honeywell has now proved it can offer a low-risk and affordable solution that meets the JPO’s future needs all while utilizing the existing supply base and sustainment network.

To demonstrate the 80kW cooling capability, Honeywell used a Digital Twin of the PTMS, which utilized data from over 2,500 hours of performance testing in Honeywell’s test facility, and more than 750,000 hours of in-flight experience. The Digital Twin incorporated low-risk advancements to heat exchangers and controls changes that further optimize system performance. These modest changes significantly increased cooling potential, while simultaneously maintaining all existing critical interfaces with airplane thermal systems without invasive redesigns or concurrency.

“Today, we have successfully demonstrated that we not only meet the F-35’s current operational needs, but we are ready to service future F-35 modernization upgrades without the need for expensive changes to the aircraft for either forward-fit or retrofit scenarios,” said Matt Milas, president, Defense and Space, Honeywell Aerospace Technologies. “By enabling F-35s to update cooling capacity within our existing PTMS architecture, we can now eliminate the risks that would otherwise come from qualifying and fielding a new system that would cost taxpayers billions of dollars without any additional benefit.”

Honeywell’s PTMS is a proven, low-risk solution that has undergone years of development and decades in service. Since 2006, more than 1,000 PTMS have been delivered, with more than 750,000 flight hours logged and an extensive network of sustainment depots established across the globe. In addition to providing cooling systems aboard the F-35, PTMS also serves many other purposes critical to flight safety.

“Honeywell’s PTMS is key to many aircraft systems integrated into the F-35, and any changes to the PTMS would affect other critical components of the aircraft,” said Matt Schacht, vice president, Engineering, Honeywell Aerospace Technologies. “We believe the lowest risk path forward for the F-35 is to maintain the existing architecture of the PTMS to preserve its many critical functions, while increasing cooling capacity for future generations of the aircraft.”

About Honeywell

Products and services from Honeywell Aerospace Technologies are found on virtually every commercial, defense and space aircraft. The Aerospace Technologies business unit builds aircraft engines, cockpit and cabin electronics, wireless connectivity systems, mechanical components and more. Its hardware and software solutions create more fuel-efficient aircraft, more direct and on-time flights and safer skies and airports. For more information, visit www.honeywell.com/us/en or follow us at @Honeywell_Aero.

Honeywell is an integrated operating company serving a broad range of industries and geographies around the world. Our business is aligned with three powerful megatrends – automation, the future of aviation and energy transition – underpinned by our Honeywell Accelerator operating system and Honeywell Connected Enterprise integrated software platform. As a trusted partner, we help organizations solve the world’s toughest, most complex challenges, providing actionable solutions and innovations through our Aerospace Technologies, Industrial Automation, Building Automation and Energy and Sustainability Solutions business segments that help make the world smarter, safer and more sustainable. For more news and information on Honeywell, please visit www.honeywell.com/newsroom.

Ahjay Rai
Global Communications Lead

Ahjay leads communications for Honeywell Aerospace across Americas, Europe, Middle East, Africa and India.