Matches in DBpedia 2015-10 for { ?s ?p "The North American XB-28 (NA-63) Dragon was an aircraft proposed by the North American Aviation to fill a strong need in the United States Army Air Corps for a high-altitude medium bomber. It never entered into full production, with only two prototypes being built."@en }
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- North_American_XB-28_Dragon abstract "The North American XB-28 (NA-63) Dragon was an aircraft proposed by the North American Aviation to fill a strong need in the United States Army Air Corps for a high-altitude medium bomber. It never entered into full production, with only two prototypes being built.".
- North_American_XB-28_Dragon comment "The North American XB-28 (NA-63) Dragon was an aircraft proposed by the North American Aviation to fill a strong need in the United States Army Air Corps for a high-altitude medium bomber. It never entered into full production, with only two prototypes being built.".