The S.E. 2300 Two/Three-seat Cabin Monoplane (140 h.p. Renault Bengali 4 Pei engine).

The S.E. 2310 Three-seat Cabin Monoplane, a tricycle version of the S.E. 2300.

The third prototype, all-metal , 3-seat Sud-Est S.E.2310 of 1946 vintage is still flying but now has a la mode wing fences plus dorsal D/F loop bulge. Power: 170-h.p. SNECMA-Regnier 4LO-2 inline. Maximum speed 140 m.p.h.