The up-and-coming Northrop Grumman B-21 Raider 6th-generation stealth bomber is not a supersonic warplane; ditto for (1) its immediate predecessor, the pre-merger Northrop B-2 Spirit (the original stealth bomber), and (2) the septuagenarian B-52 “Stratosaurus” (unofficially AKA the “Stratosaurus”).
Indeed, the only member of the US Air Force’s strategic bomber triumvirate that flies in excess of Mach 1 is the B-1B Lancer (aka “the Bone“).
A second B-21 Raider, the nation’s sixth-generation stealth bomber, joins flight testing at Edwards Air Force Base, Calif., Sept.