F-35 Showed ‘Mixed Results’ in Tests, Pentagon Report Says

Lockheed Martin Corp.’s F-35 fighter, the U.S.’s top weapons program, had “mixed results” in tests last year of its flight characteristics and combat systems, according to a Pentagon report.

Director of Operation Test and Evaluation Michael Gilmore wrote in the report that the three versions of the aircraft in 2011 matched or exceeded the program’s restructured plan for tests designed to evaluate flying qualities. The jet in 2010 met most test goals after falling behind in 2009.