F-35 Engine Debate Prompts Paris Broadside From RTX

Lockheed Martin F-35

Lockheed Martin expects that the F-35 will need 20-30% more cooling capacity from the propulsion system beyond the increased requirement imposed by Block 4 upgrades.

Credit: Lockheed Martin
Months of building tension between two close industry partners boiled over during the Paris Air Show, with the makers of the engine and the aircraft for the F-35 program publicly feuding amid a debate in Congress over whether to upgrade or replace the stealth jet’s propulsion and cooling systems...

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