B-21 modernization already underway before bomber enters service
B-21 Raider stealth bomber | USAFDefenseB-21 modernization already underway before bomber enters service Northrop Grumman says sustainment and upgrade work have begun while the Raider remains in flight testingRicardo MeierOctober 21, 2026 14:42Northrop Grumman has already begun modernization work on the B-21 Raider, even though the…