The Next-Generation Bomber program (formerly called the 2018 Bomber) is a medium bomber under development by the United States Air Force. It was originally projected to enter service around 2018 as a super stealthy subsonic medium range medium payload B-3 type system to augment and possibly to a limited degree replace the U.S. Air Force's aging bomber fleet. On 24 June 2010 Lt. Gen. Philip M.