
Northrop Grumman [NOC] on Thursday posted first quarter results that included a boost from its ongoing development work on the Air Force’s B-21 next-generation stealth bomber. The $67 million benefit on the B-21 stems from a favorable estimate-at-completion (EAC) adjustment attributed to performance benefits on the engineering and manufacturing development (EMD) contract. An EAC refers to the hours expected to complete a project or milestone. The gain on the contract was partially offset by a benefit a year ago from…