The Stearman Model X-100 was a competitor in an United States Army Air Corps competition for a twin-engined attack aircraft which (after redesigns) led to the Douglas A-20 Havoc Martin A-22 Maryland and North American B-25 Mitchell.
This page contains content from the copyrighted Wikipedia article "Stearman XA-21"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.