Keywords: Martin XB-48 on April 11, 1947, after roll-out during ground testing leading up to its first flight. 061025-F-1234S-009.jpg Martin XB-48 on April 11 1947 after roll-out during ground testing leading up to its first flight http //www nationalmuseum af mil/factsheets/factsheet_media asp fsID 2661 direct link to the picture http //www nationalmuseum af mil/shared/media/photodb/photos/061025-F-1234S-009 jpg 1947-04-11 US Goverment Original work of the US Federal Government - public domain PD-USGov Martin XB-48 |