The Drive : Five B-21 Raider Stealth Bombers Are Now In Final Assembly Five B-21 Raider Stealth Bombers Are Now In Final AssemblyThe fact that three more B-21s are now being assembled is a major indication of how fast the high-stakes bomber program is progressing. full article attached Download Five_B-21_Raider_Stealth_Bombers_Are_Now_In_Final_Assembly.pdf