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Pentagon Finalizes $6.6B F-35 Engine Deal with Pratt & Whitney

April 1, 2026

2 min read

Key Takeaways

Pentagon awards Pratt & Whitney $6.6 billion F-35 engine contract.
Contract covers Lot 18 and Lot 19 engines.
Deliveries for Lot 18 begin this fall, Lot 19 next year.
F135 engine powers the F-35 stealth fighter.

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Strategic Implications

This deal may signal the Pentagon's commitment to the F-35 program despite ongoing challenges. The investment in F135 engines suggests a focus on maintaining and upgrading the existing fleet, which could impact the development of future engine technologies and may influence the overall direction of the program.

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What Happened

Pratt Secures Contract for F135 Engines and Future Powerplants

The Pentagon has finalized a $6.6 billion contract with Pratt & Whitney for the next batch of F-35 engines, covering Lots 18 and 19. The F135 engine powers the F-35 stealth fighter, and deliveries for Lot 18 are set to begin this fall, with Lot 19 starting next year. The contract also includes work through March 2028. According to a Defense Department contract announcement, the deal marks a significant investment in the F-35 program, which has faced challenges with software updates and radar development. This development was first reported by Breaking Defense.

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