The Army's long-term project to replace the engines of its Black Hawk and Apache helicopter fleets is now a potential $10.4 billion project, according to government auditors, a $1 billion increase from two years ago. The long-term project to build more than 6,000 new engines is a once-in-a-generation opportunity being pursued by General Electric and a Pratt & Whitney-Honeywell team. The Government Accountability Office, in its annual report on selected Pentagon weapons programs, provides more details about planned...