The Air Force’s plan to buy 80 F-15EX aircraft over the next five years assumes an airframe unit cost of $80.3 million per jet and non-recurring costs of $407 million over that same time period. Budget justification documents released this week offer new details on the assumptions built into the service’s proposal to buy eight Boeing-made F-15EX fighters in fiscal year 2020 and another 72 across the future years defense program. The aircraft will be based on the F-15QA, Qatar’s...