The B-21 Raider long-range stealth bomber, under development by Northrop Grumman for the U.S. Air Force, has passed its preliminary design review, according to a recent report in DefenseNews. “It’s making great progress, and we’re pleased with the way it’s headed,” said Gen. Stephen Wilson, the Air Force’s vice chief of staff, at a recent House Armed Services Committee hearing. Northrop Grumman has been working on the project since October 2015.
Source: avwebB-21 Bomber Passes Design Milestone