Armstrong Siddeley Lynx

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Lynx

Armstrong Siddeley Lynx fitted to the Shuttleworth Collection's airworthy Avro Tutor
Type	Radial aero engine
National origin	United Kingdom
Manufacturer	Armstrong Siddeley
First run	1920
Number built	6,000
Developed from	Armstrong Siddeley Jaguar
Developed into	Armstrong Siddeley Cheetah

The Armstrong Siddeley Lynx is a British seven-cylinder aero engine developed by Armstrong Siddeley. Testing began in 1920 and 6,000 had been produced by 1939. In Italy Alfa Romeo built a 200 horsepower (150 kW) licensed version of this engine named the Alfa Romeo Lynx.^[1]

Contents

1 Variants
2 Applications
- 2.1 Alfa Romeo Lynx
3 Survivors
4 Specifications (Lynx IV)
5 See also
6 References
- 6.1 Notes
- 6.2 Bibliography

Variants

Lynx I: 1920, 150 hp.
Lynx II: 1920, 184 hp.
Lynx III: 1924, 200 hp.
Lynx IV: 1929, 180 hp.
Lynx IVA: 1930, 188 hp.
Lynx IVC: 1929, 208/225 hp.
Lynx IV(G): 1929, Geared propellor drive.
Lynx IV(MOD): 1929, 188 hp, reconditioned and modified Lynx IV.
Lynx IV(S): 1928, 200 hp, Fully supercharged.
Lynx V (Lynx Major)

Main article: Armstrong Siddeley Cheetah

1930, increased bore and stroke, name changed from Lynx V to Lynx Major then Cheetah. Effectively half a Panther^[2]

Applications

Preserved Lynx fitted to an Avro 504N

Alfa Romeo Lynx

Survivors

Avro Tutor, K3215, powered by a Lynx IV flies regularly at the Shuttleworth Collection and can be viewed in the museum at other times.^[3]

Specifications (Lynx IV)

Armstrong Siddeley Lynx 7-cylinder radial from the Avro 618 Ten aircraft, Southern Cloud

Data from Lumsden^[4]

General characteristics

Type: 7-cylinder air-cooled radial engine
Bore: 5.0 in (127 mm )
Stroke: 5.5 in (140 mm)
Displacement: 756 cu in (12.4 L)
Length: 45.6 in (1,158 mm)
Diameter: 42 in (1,067 mm)
Dry weight: 525 lb (238 kg )

Components

Valvetrain: Overhead valve, 2 valves per cylinder
Fuel system: Carburettor
Cooling system: Air-cooled

Performance

Power output: 187 hp (139 kW) at 1,700 rpm cruise / 215 hp (160 kW) at 1,900 rpm max
Power-to-weight ratio: 0.35 hp/lb (0.6 kW/kg)

References

Wikimedia Commons has media related to: Armstrong Siddeley Lynx

Notes

^ "Alfa Aero Engines". aroca-qld.com. http://www.aroca-qld.com/library_articles/alfa_romeo_aero_engines.php. Retrieved 2007-08-25.
^ Lumsden 2003, p.74.
^ The Shuttleworth Collection - Avro Tutor Retrieved: 11 February 2009
^ Lumsden 2003, p.66-67.

Bibliography

Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.

v t e Armstrong Siddeley aero engines

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Armstrong Siddeley Lynx