It was delivered to the United States Army Air Corps for tests on 6 October 1934, and after modifications which included fitting with a conventional fixed landing gear, was accepted by the Air Corps.
Bomber itu disampaikan ke Amerika Serikat Army Air Corps selama tes pada 6 Oktober 1934, dan setelah modifikasi, termasuk pas undercarriage dengan tetap konvensional, diterima oleh Korps Udara.