The Air Force has conducted not one, but two, preliminary design reviews of its planned new bomber, the B-21 Raider, an unorthodox level of scrutiny for a new major weapon system that included one assessment during the technology development phase that concluded in 2015 and one recently as part of the engineering and manufacturing development phase of the new program. A spokesman for the Air Force Rapid Capability Office overseeing development of the largely classified new bomber program said the...
