Northrop YB-49 Video - Newsreel
More Northrop YB-49 Videos 1 2 3 4 - Northrop YB-49 Pictures
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Northrop YB-49 Video - Newsreel clip
Northrop YB-49 Video - 1940 films of Northrop flying wing prototypes
Flying Wing YB-35 and XB-49 - History Channel
Living Warbirds: The best warbirds DVD series.
Source: WikiPedia
