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F135 Engine Core Upgrade (ECU)

The F135 is the world’s most advanced fighter engine with proven readiness and reliability. The ECU builds upon that same architecture with a fleet-wide upgrade.

Combat proven. Variant common. Cost effective.

The future of the F-35 fighter jet.

As the F-35 gains capability, so must its engine. The F135 Engine Core Upgrade (ECU) is the only choice to implement this crucial upgrade, based on the proven record of excellence of the existing F135 engine.

 

773,000+ Recorded Flight Hours

The ECU builds on the architecture of the F135—a proven engine with nearly 20 years of reliable performance. It is the only true drop-in, low-risk and cost-effective engine upgrade for the F-35.

Variant Common

Commonality is a pillar of the F-35 program. The ECU is the only engine upgrade that supports all three variants of the F-35, enabling joint maintenance efficiencies and leveraging existing infrastructure.

Fiscally Responsible

The ECU will cost approximately $2 billion to fully upgrade the engine—ultimately saving taxpayers 10s of billions over the F-35 program’s lifetime if chosen over alternative options.

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