The Pentagon's top weapons tester has labeled the F-35 joint program office's Block 4 modernization schedule as "high risk" due to inefficiencies in testing and software releases as well as a backlog of 13 Category 1 deficiencies that he says must be addressed before the program integrates significant new capability. The annual report , completed by Director of Operational Test and Evaluation Robert Behler and released today, details concerns that the JPO's Block 4 Continuous Capability Development and Delivery (C2D2)...
