An improved version of the successful M.5 and designed by Alesandro Tonini only 17 were delivered to the Regia Marina when hostilities ended. Later developed into a Schneider Trophy racing plane as the M.7 bis which featured reduced span wings and an overall lighter structure resulting in a win 1921 for Giovanni di Briganti at Venice. The following year at Naples it came fourth. The boat was revised again in 1923 as the M.7 ter which featured revised fuselage wings and tail unit. The later M.7 ter AR had folding wings. Over 100 were produced and flew with not only the Italian Navy but with the Argentine Navy, the Brazilian Navy and the air forces of Paraguay and Sweden.