The initial MS.600, powered by a 75 hp (56 kW) Mathis G-4F piston engine, was a fixed gear, low-winged monoplane of mixed construction, with a single fin and the tailplane set just above the fuselage and a clear perspex canopy over a side-by-side cockpit for two persons.

[1] A parallel development, the MS.602, powered by a 75 hp (56 kW) Minie 4DA piston engine, was similar in most respects to the MS.600 and flew on 24 June 1947.

[3] The tailplane was also moved to a high set position on the fin and supported by struts.

Initially registered F-WCZU in the experimental series, and re-registered F-PHQY in the amateur-operated series, the MS.602 was owned by Messieurs Gambi and Chanson and based at Saint-Cyr-l'École airfield to the west of Paris.

By 1963 it was operated by M. Jean Forster, based at Guyancourt airfield,[5] but was withdrawn from use by 2006 when it was stored at the Musee de l'Aviation du Mas Palegry - (Mas Palegry Aviation Museum) near Perpignan.