Societe D’emboutissage et de Constructions Mecaniques / SECM

Founded 1916 by Felix Amiot. During First World War built Morane, Breguet and Sopwith types. After war repaired Breguets, and from 1921 helped in construction of early Dewoitine monoplane fighters. Specialized in metal stamping and press-work. Lutace of 1921 was side-by-side two-seater biplane using special form of steel-tube construction of SECM design. SECM 12 was two-seat single-engined night bomber (developed as SECM-Amiot 120B.N.2); 22 was trainer for French competition of 1923; 23 was 3- seat tourer; 24 an elementary trainer. Firm also made Lorraine-Dietrich aero engines, as fitted in Amiot-SECM (or Amiot) 122 series of late 1920s.

Societe Anonyme Pour La Realisation D’avions Prototypes / S.R.A.P.

Established at Billancourt in 1926 to build aircraft to the design of Louis Becherau, formerly with Deperdussin and SPAD. First production design was the C.2, a two-seat monoplane powered by a 500hp Salmson engine.

The Paris-based S.R.A.P. is often listed as the ‘Société pour la Réalisation d’Appareils’. Flight truncated the name as ‘Société pour la Réalisation d’Avions’. However, ‘Prototypes’ seems important as it suggests that S.R.A.P. did not intend to manufacture aircraft designs in series.