Armstrong Siddeley Serval

The Armstrong Siddeley Serval was a British ten-cylinder aero engine developed by Armstrong Siddeley in the late 1920s. Following company tradition, the engine was named for the serval.

Serval/Double Mongoose
Type Radial engine
National origin United Kingdom
Manufacturer Armstrong Siddeley
First run 1928
Major applications Armstrong Whitworth Atalanta
Saro Cloud

Design and development

The Serval was a ten-cylinder, double-row, air-cooled radial piston engine. It was developed from the Armstrong Siddeley Mongoose and was, more or less, two Mongooses built around a single crankcase. In fact, it first appeared as the Double Mongoose in May 1928.[1]

Built in several variants, power output was about 340 hp (254 kW).

Variants

Serval I initially Double Mongoose

(1931) 340 hp.
Serval III
(1932)
Serval IIIB
(1932) 310 hp.
Serval IV
310 hp.
Serval V
(1933) 340 hp.

Applications

Specifications (Serval I)

Data from Lumsden.[2]

General characteristics

  • Type: 10-cylinder double-row radial
  • Bore: 5 in (127 mm)
  • Stroke: 5.5 in (139.7 mm)
  • Displacement: 1,080 cu in (17.7 L)
  • Length: 54.25 in (1,378 mm)
  • Diameter: 45.6 in (1,158 mm)
  • Dry weight: 714 lb (324 kg)

Components

Performance

See also

Related development

Related lists

References

Notes

  1. Gunston 1989, p.17.
  2. Lumsden 2003, p.77.

Bibliography

  • Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
  • Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
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