The F-35 joint program office anticipates prime contractor Lockheed Martin will deliver 45 of the 53 jets it expected to produce in 2016, due largely to delays caused by faulty insulation in some of its engine coolant tubes. The program discovered in September that 57 A-model jets -- 15 in the field and 42 on the production line -- contained engine coolant tubes with bad insulation provided by a secondary supplier. F-35 Program Executive Officer Lt. Gen. Christopher Bogdan told...