Boeing XB-47 Published on December 20, 2012 in 17 December 1947Full resolution (1800 × 1160) ← Previous Next → Boeing XB-47 Stratojet 46-065, the first of two prototypes, on the ramp at Boeing Field, Seattle, 1 December 1947. (U.S. Air Force)The first Boeing XB-47 built (S/N 46-065), taken on Dec. 1, 1947, before its first flight. (U.S. Air Force photo)