• Source: Salmson air-cooled aero-engines

Between 1920 and 1951 the Société des Moteurs Salmson in France developed and built a series of widely used air-cooled aircraft engines.




Design and development


After their successful water-cooled radial engines, developed from 1908 to 1918, Salmson changed their focus to air-cooling to reduce weight and increase specific power (power per unit weight). The majority of the engines produced by Salmson were of radial type with a few other arrangements such as the Salmson T6.E. In common with other engines produced by this manufacturer, the air-cooled radial engines featured the unorthodox Canton-Unné internal arrangement that dispensed with a master rod in favour of a cage of epicyclic gears driving the crankpin. Production ended in 1951 with the liquidation of the manufacturing company.




British Salmson


The 3,7 and 9 cylinder Salmsons were license-built in Great Britain, during the 1920s and 1930s, by the British Salmson engine company as the British Salmson AD.3, British Salmson AC.7, British Salmson AC.9, and British Salmson AD.9.




Salmson post-WWI engines


In common with several other French aero-engine manufacturers Salmson named their engines with the number of cylinders then a series letter in capitals followed by variant letters in lower-case. Engines not included in the 1932 table which follows are listed here:

Salmson air-cooled engines available in 1932 are listed here




Applications






= Nine cylinder engines

=




= Seven cylinder engines

=




= 7AC

=
Albert A-61
Caudron C.191&2
Caudron C.220
Caudron C.270
Dewoitine D.480
Farman F.234
Farman F.280
Farman F.352
Hanriot H.411
Kellner-Béchereau 23
Morane-Saulnier MS.132
Morane-Saulnier MS.148
Potez 36/5




= Five cylinder engines

=




= 5Ap

=
Jodel D.123




= 5Aq

=
Caudron C.109.2
CFA D.7 Cricri Major




= 5AC

=
Caudron C.110
Caudron C.161
Jodel D.124
Potez 36/3




Specifications (9 Ab)


Data from Tsygulev




= General characteristics

=
Type: Nine-cylinder single-row supercharged air-cooled radial engine
Bore: 125 mm (4.92 in)
Stroke: 170 mm (6.69 in)
Displacement: 18.765 L (1,145 in³)
Length: 1,000 mm (39.37 in)
Diameter: 1,180 mm (46.46 in)
Dry weight: 265 kg (584 lb)




= Components

=
Valvetrain: Two overhead valves per cylinder
Supercharger: Single-speed centrifugal type supercharger
Fuel system: Zenith 42D carburetor
Cooling system: Air-cooled




= Performance

=
Power output: 191 kW (256 hp) at 1,780 rpm for takeoff
Specific power: 10.18 kW/L (0.22 hp/in³)
Compression ratio: 5:1
Specific fuel consumption: 328 g/(kW•h) (0.54 lb/(hp•h))
Oil consumption: 19 g/(kW•h) (0.49 oz/(hp•h))
Power-to-weight ratio: 0.72 kW/kg (0.44 hp/lb)




See also


Salmson water-cooled aero-engines
List of aircraft engines




Notes






References


Gunston, Bill (1986). World Encyclopaedia of Aero Engines. Wellingborough: Patrick Stephens. p. 152.
Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
Cuny, Jean. "Latécoère - Les Avions et Hydravions".Paris. Docavia/Editions Lariviere. 1992. ISBN 2-907051-01-6

Kata Kunci Pencarian:

• Salmson air-cooled aero-engines
• Salmson water-cooled aero-engines
• List of aircraft engines
• Salmson
• Salmson 9 AD
• Radial engine
• Salmson 9
• British Salmson AD.9
• Salmson AD.3
• Salmson B.9