F-35’s Capstone Test Report Is Stamped Classified by Pentagon

The Pentagon’s test office has completed the most comprehensive evaluation yet of Lockheed Martin Corp.’s F-35, the world’s costliest weapons system, but won’t share what it’s found: The report has been marked “classified.”

The test report contains assessments about the fighter jet’s combat effectiveness against a variety of current and future aircraft and air-defense threats. It also assesses how well it can be maintained and its combat-ready status. The test office said the Defense Department “may decide to release an unclassified summary at a future date.”