All three variants of the F-35 Joint Strike Fighter, the most expensive weapons development program in the Pentagon's history, are expected to reach initial operational capability by February 2019, according to a joint service report submitted to Congress today. The Navy and Air Force report to Congress , obtained by InsideDefense.com, details service-specific initial operational capability requirements and the IOC dates for each of the F-35 variants. Based on the F-35 joint program office's integrated master schedule, the Marine...