The Boeing XB-15 (Boeing 294) was a United States bomber aircraft designed in 1934 as a test for the United States Army Air Corps (USAAC) to see if it...

The Boeing XB-55 (company designation Model 474) was a proposed Boeing aircraft designed to be a strategic bomber. The XB-55 was intended to be a replacement...

The Boeing Y1B-20 (Boeing 316) was designed as an improvement on the Boeing XB-15. It was slightly larger than its predecessor, and was intended to use...

variants Boeing B-47 Stratojet Boeing B-50 Superfortress Boeing B-52 Stratofortress Boeing B-54 Boeing XB-55 Boeing XB-56 Boeing XB-59 Boeing TB – torpedo...

cross the Atlantic and Pacific oceans. For its wing, Boeing re-used the design from the earlier XB-15 bomber prototype. Twelve Clippers were built, nine...

would fill the role intended for the XB-16. The XB-16 was canceled for essentially the same reason that the Boeing XB-15 project was, as it was not fast enough...

and production models from 1943 to 1946. Section source: Baugher The XB-29, Boeing Model 345, was the first accepted prototype or experimental model delivered...

Aviation portal Aircraft of comparable role, configuration, and era Boeing XB-15 Boeing Y1B-20 Convair B-36 Related lists List of bomber aircraft List of...

four-engined designs (to become B-45 and XB-46), while Boeing and Martin were to build six-engined aircraft (the B-47 and XB-48). The powerplant was to be General...

Bowers, Peter M. (1989). Boeing aircraft since 1916 (3rd ed.). London: Putnam. pp. 345–352. ISBN 0851778046. "Boeing/Pratt & Whitney XB-44 factsheet." Archived...