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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.[1]

Maryse Hilsz holding the propeller of her Mauboussin M.122 with Salmson 9 Aé.RS,[2] 1935

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:

3AD
9 kW (12 hp) at 1800 rpm rated[3]
5Ac
90 kW (120 hp)[4]
5Ap-01
60 kW (80 hp)
5Aq-01
65 kW (87 hp)
6Ad
6Af
6TE
130 kW (170 hp) inline engine
6TE.S
130 kW (170 hp) inline engine
7Ac
70 kW (94 hp)
7Aq
100 kW (130 hp)
7M
7Om
8As
Argus As 10 inline engine
9Ac
30 kW (40 hp)
9AB
150 kW (200 hp) at 1500 rpm rated[3]
9ABa
210 kW (280 hp)
9ABc
170 kW (230 hp)
9Az
220 kW (300 hp) at 1500 rpm rated[3]
9A2c
180 kW (240 hp)
9M
89 kW (120 hp)
9Nd
130 kW (175 hp)
9Ne
130 kW (170 hp)
9Ng
150 kW (200 hp)
9Nh
150 kW (200 hp)
9P
70 kW (94 hp)
9Y
11B
12C
190 kW (250 hp) W-12 engine
18Z
450 kW (600 hp)
Salmson-Szydlowski SH18
18 cylinder air-cooled 2-stroke radial

Salmson air-cooled engines available in 1932 are listed here[5]

Applications

Nine cylinder engines

9AB
9AC
9AD
9AG
9AZ
9NC
9ND
9NE
9NH
9NM

Seven cylinder engines

7AC

Five cylinder engines

5Ap

5Aq

5AC

Specifications (9 Ab)

Data from Tsygulev[6]

General characteristics

Components

Performance

See also

Notes

  1. ^ Gunston 1986, p. 158.
  2. ^ "Fai Record File". Archived from the original on 2014-04-13. Retrieved 2014-04-12.
  3. ^ a b c Salmson 1927 advert
  4. ^ "Les Moteurs d'aviation Salmson". L'Aérophile: 33–34. 1–15 January 1924.
  5. ^ Hartmann, Gerard. "LA SOCIETE DES MOTEURS SALMSON" (PDF). hydroretro.net (in French). p. 13. Retrieved 11 April 2015.
  6. ^ Tsygulev (1939). Aviacionnye motory voennykh vozdushnykh sil inostrannykh gosudarstv (Авиационные моторы военных воздушных сил иностранных государств) (in Russian). Moscow: Gosudarstvennoe voennoe izdatelstvo Narkomata Oborony Soyuza SSR. Archived from the original on 2009-03-24.

References