The developmental Northrop Grumman B-21 Raider bomber passed its critical design review (CDR) in late November, the US Air Force (USAF) announced on 10 December.
The CDR, which took place from 28 to 30 November, followed a three-year engineering, manufacturing, and development (EMD) phase and involved a "multi-disciplined technical review" to ensure that the aircraft's design is mature and stable enough to support manufacturing and flight test.
With the programme overseen by the Air Force Rapid Capabilities Office, the B-21 is designed to be a long-range, highly survivable platform capable of penetrating and operating in future anti-access, area denial (A2/AD) environments.
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