Emile Salmson’s French general engineering firm entered the aircraft engine field in 1911. Its earlier engines were water cooled radials based on a Swiss Canton-Unne patent. The Société des Moteurs Salmson introduced the air cooled 9AD in 1925. Private pilots in the United States and Europe used it extensively in light sport aircraft. A French Albert TE-1 aircraft equipped with a 9AD captured a light plane altitude record in 1926 of 6,096 meters (20,000 feet).
The Aeromarine-Klemm Corporation of Keyport, New Jersey, was the American distributor for Salmson engines. U.S. and European aircraft that used the 9AD included the Aeromarine-Klemm AKL-25A, American Eaglet 231, Caudron 109, Farman 230, and Morane-Saulnier MS 180.
Gift of Charles F. Grafflin
Country of Origin: France
Diameter 63 cm (24.81 in.), Length 69.1 cm (27.188 in.)
Type: Radial, 9 cylinders, air cooled
Power rating: 30 kW (40 hp) at 2,000 rpm
Displacement: 3 L (182 cu in)
Bore and Stroke: 69.9 mm (2.75 in.) x 85.7 mm (3.375 in.)
Weight: 69.9 kg (154 lb)