Salmson-Moineau S.M.1 French Reconnaissance Aircraft
The Salmson-Moineau S.M.1 was a three-seat French reconnaissance biplane of the First World War. Unusually, the engine was placed within the fuselage and drove two propellers via a gearbox and shafts. This was intended to reduced drag. However, it added complexity to the design that proved difficult to maintain while operating in the field.
Gunner in the rear and nose were armed with 37mm APX cannons. Around 150 Salmson-Moineau S.M.1 were built, entering squadron service in 1916.
A small number were operated by Russia.