F-35 manufacturer Lockheed Martin has failed to deliver regular upgrades for the aircraft—and its most recent upgrade package was implemented disastrously, according to an internal Pentagon report.

Attempts to provide upgraded software for F-35 jets have “stagnated” and no new combat capability was delivered last year, according to the annual report by the Pentagon’s testing office, even as the ...

Testing office says Lockheed Martin's TR-3 software faced stability issues and capability gaps during evaluation.

The Navy awarded Lockheed a $133 million contract modification to continue providing F-35 flight test support for U.S. military services.

The U.S. Dept. of Defense issued a further $27.2 million to Lockheed Martin Aeronautics within the context of a previously awarded contract for the F-35 Joint Strike Fighter. The original, December ...

The F-35 Lightning II was used in August 2025 to successfully evaluate three B61-12 test assets during a multi-day test campaign. Sandia National Laboratories and the National Nuclear Security ...

The TR-3 upgrade, which is much more than a mere software/hardware upgrade, is now running years behind schedule—but speculation is mounting that it could arrive soon. The United States Air Force ...

F-35 TR-3 software upgrades stalled in testing, delaying new combat capability and raising cybersecurity concerns.

Modernization efforts for the F-35 Joint Strike Fighter program are "significantly behind schedule," according to an annual report from the Pentagon's director of operational test and evaluation, ...

The F-35 Joint Strike Fighter continues to face developmental issues because of a lack of test aircraft, according to the fiscal year 2009 annual report by the Director of Operational Test and ...