Upgraded F-35 Deliveries Delayed to Mid-2024; USAF Prioritizes New Units in the Meantime

The first F-35s with the Tech Refresh-3 upgrade—largely a processor upgrade upon which the Block 4 configuration of the fighter will ride—will be delivered before the middle of next year, a Lockheed Martin spokesperson said Sept. 6. Previously, TR-3 jets were forecast to become available in the last quarter of calendar 2023.

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