The B-21 Raider has so far avoided ballooning costs, said Air Force Chief of Staff Gen. David Allvin.
A major predictor of training injury and attrition was reduced muscular power and lower relative peaks in explosive strength, the study found.
By Hope Hodge Seck
The Air Force is rethinking its approach to air dominance, which Northrop Grumman thinks could show whether more B-21s are in the cards.
A B-2 stealth bomber is ready to fly again after finishing its maintenance nearly 100 days ahead of schedule.
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