The Morane-Saulnier MS.138 was a military trainer aircraft produced in France in the late 1920s the major production version of a family that also included the MS.137 and MS.139. The design was derived from the MS.35 first flown during World War I modernised to feature a wing that now included slight sweepback and a redesigned fuselage of rounder cross-section.
Made by Morane-Saulnier.