Summary and Key Points: The B-21 Raider, developed by Northrop Grumman, is set to replace the aging B-1B Lancer and B-2 Spirit bombers. Building on the B-2's flying wing design and stealth capabilities, the B-21 promises to enhance radar evasion with advanced technology, some of which remains classified.
-Designed for the 21st century, it incorporates lessons from the F-117, B-2, F-22, and F-35. Cost-effectiveness is a priority, with an open systems architecture allowing for rapid updates.