Martin B-10

The Martin B-10 is a bomber aircraft designed by the Glenn L. Martin Company. Entering service in June 1934, it was the first all-metal monoplane bomber to be regularly used by the United States Army Air Corps. It was also the first mass-produced bomber whose performance was superior to that of the Army's pursuitaircraft of the time.

The B-10 served as the airframe for the B-12, B-13, B-14, A-15, and O-45 designations – using Pratt & Whitney engines instead of Wright Cyclones. A total of 348 of all versions were built. The largest users were the US, with 166, and the Netherlands, with 121.