The unit cost of a new F-15 self-protection capability has spiked more than 24% above its original estimate due to a decision to reduce the overall quantity and subsequent delays to hardware delivery and test jet modifications -- triggering a Nunn-McCurdy cost breach. The Pentagon detailed the cost increase, which nearly met the criteria to be classified as a "critical" breach, in an Aug. 1 summary of its Selected Acquisition Reports for the first quarter of fiscal year 2019. Programs...