DOT&E: F-35 Block 4 testing 'deficient,' JSE conclusion date 'at risk'

By Michael Marrow / January 20, 2023 at 12:39 PM
The F-35 Joint Program Office's efforts to upgrade jets with Block 4 software are "deficient" and its goal of concluding Joint Simulation Environment testing later this year is "at risk," according to a new Pentagon report. Release of modernized capabilities in Block 4 brought on by Technology Refresh 3 (TR-3) hardware were recently revealed to be delayed again following an announcement by JPO of the first developmental flight test earlier this month. And with 64 trials for the JSE remaining,...

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