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Why can’t the US military’s Block 4 F-35 stealth fighter work?

Key Points and Summary – Block 4 and Tech Refresh 3 are critical upgrades meant to keep the F-35 relevant for decades. -Even ...
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The U.S. Air Force’s F-35 Stealth Fighter Block 4 Crisis

Key Points and Summary - The F-35's critical Block 4 upgrade package is now five years behind schedule, expected in 2031, and $6 billion over budget, according to a scathing Government Accountability ...