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...
Steve Trimble

Steve covers military aviation, missiles and space for the Aviation Week Network, based in Washington DC.

Brian Everstine

Brian Everstine is the Pentagon Editor for Aviation Week, based in Washington, D.C. Before joining Aviation Week in August 2021, he covered the Pentagon for Air Force Magazine. Brian began covering defense aviation in 2011 as a reporter for Military Times.

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