F-35 prime contractor Lockheed Martin is still aiming to complete the Joint Strike Fighter program's development phase by the end of the year, telling reporters this week that key milestones this summer will offer a good indicator of whether it is executing to its aggressive testing schedule. The system development and demonstration phase is slated to wrap up this year, but Defense Department officials have predicted a range of estimated F-35 slips: F-35 Program Executive Officer Lt. Gen. Christopher Bogdan...
