B-21 Raider Stealth Aircraft Capable Of Manned and Unmanned

Document Confirms B-21 Raider Capable Of Manned and Unmanned. The USAF has kept the details surrounding their new Long-Range Strike Bomber (LRS-B), now known as the B-21 Raider, tightly under wraps even two years after the contract to build the stealth jet was officially awarded to Northrop Grumman.