British Salmson aero-engines refers to a series of small French designed, air-cooled radial aero engine 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.3Three cylinder license production of the Salmson 3 Ad 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 of 73 mm and increased compression ratio (6:1) (3239cc / 197.7cuin). AD.9NG, increased bore and stroke. (100 x 140 mm, 9896cc (603.9cuin) capacity).
Applications AD.9 Angus Aquila BA Swallow Comper Swift Boulton Paul P.41 Phoenix General Aircraft Monospar Hafner Revoplane Hinkler Ibis Parmentier Wee Mite AD.9R Arpin A-1 AD.9NG Cierva C.40
Specifications (AD.9)
See also
References
Notes
Bibliography
Flight magazine, 25 July 1929. Flight magazine, 22 November 1929. Flight magazine, April 4, 1930.