British Salmson aero-engines refers to a series of small

French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...

designed, air-cooled radial

aero engine An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and in recent years many ...

that were produced by British Salmson Aero Engines Ltd, under license from Société des Moteurs Salmson, in Great Britain during the late 1920s and 1930s. Because the relatively low power was divided among several cylinders, the running of the engines was particularly smooth, and the torque was very even.Salmson
in ''Flight'' magazine, April 4, 1930. Adding to the smooth running of these engines was the use of the Canton-Unne system of planetary gears in a cage connecting pistons to crank-pin.

Variants

;AD.3:Three cylinder license production of the

Salmson 3 Ad The Salmson AD.3 or Salmson 3 Ad was a French designed, three-cylinder, air-cooled radial aero engine. It was also produced by British Salmson in Great Britain during the 1920s. Applications (3 Ad) * Adaridi AD 3 *Farman Aviette * Peyret-Nessler ...

;AC.7: seven cylinder radial, capacity ;AC.9: nine cylinder radial, capacity ;AD.9: at 2000 rpm (normal power) or at 2200 rpm (maximum power). Bore of 70 mm. ;AD.9R:, geared version of AD.9 with increased

bore Bore or Bores often refer to: *Boredom * Drill Relating to holes * Boring (manufacturing), a machining process that enlarges a hole ** Bore (engine), the diameter of a cylinder in a piston engine or a steam locomotive ** Bore (wind instruments), ...

of 73 mm and increased

compression ratio The compression ratio is the ratio between the volume of the cylinder and combustion chamber in an internal combustion engine at their maximum and minimum values. A fundamental specification for such engines, it is measured two ways: the stati ...

(6:1) (3239cc / 197.7cuin). ;AD.9NG:, increased bore and

stroke A stroke is a medical condition in which poor blood flow to the brain causes cell death. There are two main types of stroke: ischemic, due to lack of blood flow, and hemorrhagic, due to bleeding. Both cause parts of the brain to stop functionin ...

. (100 x 140 mm, 9896cc (603.9cuin) capacity).

Applications

;AD.9 *

Angus Aquila __NOTOC__ The Angus Aquila was a 1930s British single-seat low-wing monoplane designed and built by Arthur Leighton Angus. It had an open cockpit and was powered by a Salmson AD.9 radial engine. The Aquila was registered ''G-ABIK'' and test ...

* BA Swallow * Comper Swift * Boulton Paul P.41 Phoenix * General Aircraft Monospar *

Hafner Revoplane Hafner may refer to: Surname *Anton Hafner (born 1918), German former Luftwaffe fighter ace * Benjamin Hafner (1821–1899), American locomotive engineer *Christian Hafner (born 1972), Italian luger *Dorinda Hafner, optician, nurse, storyteller, ...

Hinkler Ibis __NOTOC__ The Hinkler Ibis was a British two-seat wooden amphibian monoplane designed and built by the Australian aviator Bert Hinkler while working in the United Kingdom.UK Civil Aviation AuthorityG-AAIS registration Design and development H ...

Parmentier Wee Mite The Parmentier Wee Mite (sometimes Noel Wee Mite) was a British two-seat, parasol monoplane designed by Cecil Noel and first flown in Guernsey in 1933.Ellis 1979, p, 102 Design and development The Wee Mite was a parasol monoplane with a welded s ...

;AD.9R *

Arpin A-1 __NOTOC__ The Arpin A-1 was a two-seat low-wing monoplane which was powered by a single radial engine in pusher configuration, mounted behind the cabin between twin booms that carried the tail. An unconventional fixed tricycle undercarriage wa ...

;AD.9NG *

Cierva C.40 The Cierva C.40 was a British autogyro designed by G.B.L. Ellis, Otto Reder, and Dr. J.A.J Bennett and was assembled by the British Aircraft Manufacturing Company at London Air Park, Hanworth. Development The C.40 was the last autogiro pro ...

Specifications (AD.9)

References

Notes

Bibliography