The three variants of the F-35 Joint Strike Fighter are “breaking more often” and “taking longer to fix,” according to the Pentagon’s top weapons tester. In written testimony to the House Armed Services readiness and tactical air and land forces subcommittees, Director of Operational Test and Evaluation Robert Behler detailed the F-35’s readiness issues , telling lawmakers not one of the three variants is achieving maintainability and reliability measurements laid out in the program’s operational requirements document. “Although the F-35A...