This replica was completed by the Air Force Museum in 2002, using some original parts and original blue-prints. First designated as MB-2 before the 1919 designation system, the NBS-1 flew for the first time on 3 Sep 1920. The NBS-1 had unique folding wings to enable it to be parked in smaller hangars. It was powered by two 420 hp V-12 Liberty engines mounted on the lower wing. Armament consisted of five .30 cal. machine guns and 2000 lbs of bombs.