As the war progressed, the evolution of plane designs was moving rapidly. A plane that was modern in 1915 could prove to be a liability in 1917. The development of the Salmson 2 took place during the war. The first planes were delivered in April 1918 and 3200 planes were manufactured. These planes were capable of carrying a crew of two, several machine guns and a wireless set. Its top speed was 187kph (116mph).
It was widely used in June 1918 by the USAS, the Air Service of the United States Army.