The Air Force’s first B-21 Raider stealth bomber is ‘starting to look like an airplane,’ official says By Jared Keller / Aug 12, 2020
The Air Force’s secretive new B-21 stealth bomber is ready to take flight By Ellen Ioanes, Business Insider / Jul 24, 2019
Report: The Air Force Needs At Least 164 New B-21 Raider Stealth Bombers By Dave Majumdar, The National Interest / Jun 28, 2017