AEROSPACE TECHNOLOGIES
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PTMS for the F-35: The Proven Choice
Honeywell's Power & Thermal Management System is the trusted solution for the F-35 Lightning II.
Economically retrofittable. Minimally invasive. Future-Ready.
Aircraft equipped
1,185+
Flight hours logged
1 million+
Operational depots maintaining readiness
8
Hardware reuse
with upgrade
95%
1,200+
Aircraft
Equipped
1 million+
Flight Hours
Logged
8
Operational Depots
Maintaining Readiness
95%
Hardware Reuse
with Upgrade
PROVEN
PERFORMANCE
With over 1 million flight hours, Honeywell's
Power & Thermal Management System is the trusted solution for the F-35 Lightning II. It's combat-proven and upgrade-ready. Avoid the $7 billion cost increase of a high-risk redesign. Stick with what works for the taxpayer and warfighter.
PTMS Myth Busting
PTMS is the only fielded system of its kind, enabling 1,200+ jets with over 1 million proven flight hours across global fleets.
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The Upgrade vs. Clean-Sheet Choice
Upgrading Honeywell’s PTMS keeps the F-35 mission-ready, cost-effective, and future-proof, without disrupting global supply chain and logistics infrastructure.
- The heart and circulatory system of the F-35 Lightning II.
- Replaces 4 systems with 1: reduces aircraft weight by 1,000 lbs and length by 10 inches.
- Performs 14 safety and mission-critical functions, all tested, all qualified, and integrated.
- 95% hardware reuse, 80% software reuse. No major reintegration needed.
- Cooling upgrade path already mapped.
- Phase 1 – Software: 40kW by 2029 and immediate engine overhaul cost savings with up to 41% bleed air reduction.
- Phase 2 – Hardware: Path to 80kW objective with 95% hardware, minimizing development and retrofit costs, reducing risk, and preserving mission readiness.
- All hardware/software upgrades are TRL 7+, mature and ready for EMD.
- $7B+ lifecycle cost increase.
- Requalification of all 14 PTMS functions.
- Doubling logistics burden across parts, tools, training, depots, and personnel.
- Jeopardizing mission readiness for U.S. and 19 international partners.
Get Your PTMS Upgrade Now
Our Power and Thermal Management System (PTMS) integrates a conventional auxiliary power unit, environmental control system, and emergency power into a single system.
