Английская Википедия:Armstrong Siddeley Jaguar
Шаблон:Short description Шаблон:Use dmy dates Шаблон:Use British English
The Armstrong Siddeley Jaguar is an aircraft engine developed by Armstrong Siddeley. The Jaguar was a petrol-fuelled air-cooled 14-cylinder two-row radial engine design. The Jaguar III was first used in 1923, followed in 1925 by the Jaguar IV and in 1927 by the Jaguar VI. In 1925 the Jaguar became the first production aero engine incorporating a geared supercharger.[1]
Design and development
The Jaguar was developed from the Royal Aircraft Factory RAF.8 design proposal of 1916. The RAF.8 was the work of a design team lead by F.M. Green, and incorporated the findings of research into aluminium air-cooled cylinders by Samuel D. Heron and Professor A. H. Gibson.Шаблон:Sfnp Disillusioned by political and press criticism of the Royal Air Factory, Green and his design team, including Heron, left the Factory in January 1917 and took up positions with the Siddeley-Deasy company. There they were required by official policy to suspend work on the RAF.8 and focus efforts to get the unreliable Siddeley Puma into effective service, an engine that had been ordered in large numbers despite a lack of testing.Шаблон:Sfnp As a result, the RAF.8 design, then known as the Jaguar, was not run until 21 June 1922.
Initial performance was not as expected; as a result the stroke was increased to 5.5 in (139.7 mm) on all variants after the Jaguar I. By that time, the engine had been fitted with a gear-driven supercharger. Throughout its career the Jaguar suffered from vibration due to the lack of a crankshaft centre bearing.Шаблон:Sfnp The most powerful version of the engine, the Jaguar VIC, produced a maximum of 490 hp (365 kW) on takeoff at 1,950 rpm and weighed 910 lb (413 kg).Шаблон:Sfnp The later Lynx was designed using one row of Jaguar cylinders.Шаблон:Sfnp
Variants
- Jaguar I
- 1922, 300 hp.
- Jaguar II
- 1923, 385 hp, increased stroke, capacity 1,512 cu in (24.8 L).
- Jaguar III
- 1923, 385 hp.
- Jaguar IIIA
- 1923, 380 hp.
- Jaguar IV
- 1925, 385 hp, twin carburettors
- Jaguar IVA
- 420 hp, Geared propeller drive.
- Jaguar IVC
- 1928, 400 hp, revised connecting rod design, enclosed valve gear.
- Jaguar IV(S)
- 1925, 365 hp, fully supercharged.[nb 1]
- Jaguar V
- 1928.
- Jaguar VI
- 1927.
- Jaguar VI(S)
- 1928, supercharged version of Jaguar VI.
- Jaguar VIC
- 1927, 470 hp, geared propeller drive version of Jaguar VI.
- Jaguar VID
- 1928.
- Jaguar VIIA
- 1929, 400 hp, fully supercharged.
- Jaguar VIII
- 1928, 405 hp, fully supercharged, geared propeller drive
Applications
- Airco DH.4
- Airco DH.9
- Armstrong Whitworth Ajax
- Armstrong Whitworth Aries
- Armstrong Whitworth Argosy
- Armstrong Whitworth Atlas
- Armstrong Whitworth Siskin
- Armstrong Whitworth Starling
- Armstrong Whitworth Wolf
- Avro 642
- Blackburn Airedale
- Blackburn C.A.15C
- Blackburn Turcock
- Boulton Paul P.71
- De Havilland Dormouse
- De Havilland DH.50
- De Havilland Giant Moth
- De Havilland Hyena
- Fairey Ferret
- Fairey Flycatcher
- Fokker C.V
- Fokker D.XVI
- Gloster Gnatsnapper
- Gloster Grebe
- Handley Page Hampstead
- Hawker Danecock
- Hawker Hawfinch
- Hawker Hoopoe
- Hawker Woodcock
- Larkin Lascowl
- Martinsyde ADC 1
- Nieuport Nighthawk
- Parnall Plover
- RAAF Experimental Section Warrigal II
- Supermarine Air Yacht
- Supermarine Nanok
- Supermarine Southampton
- Svenska Aero Jaktfalken (SA-11)
- Vickers Vellore
- Vickers Vespa
- Vickers Viastra
- Vickers Vimy Trainer (Type 156)
- Westland Wapiti
- Westland Weasel
Engines on display
A preserved Armstrong Siddeley Jaguar is on public display at the Science Museum (London).
Specifications (Jaguar I)
See also
References
Notes
Citations
Bibliography
External links
- Virtual aviation museum
- The Siddeley "Jaguar"s' 17,000 Miles - a 1926 Flight article on the Jaguar's endurance during an London-Cape Town-London flight by Alan Cobham
Шаблон:ASaeroengines Шаблон:Royal Aircraft Factory aeroengines
- ↑ "World Encyclopedia of Aero Engines – 5th edition" by Bill Gunston, Sutton Publishing, 2006. p.13
- ↑ Шаблон:Cite web
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