The B-21 Raider continues to progress in ground testing with the commencement of engine runs at Northrop Grumman’s facilities in Palmdale, Calif. (Photo Credit: Northrop Grumman)
The B-21 Raider continues to progress in ground testing with the commencement of engine runs at Northrop Grumman’s facilities in Palmdale, Calif. (Photo Credit: Northrop Grumman)