Armstrong Siddeley
Encyclopedia
Armstrong Siddeley was a British
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 engineering group that operated during the first half of the 20th century. It was formed in 1919 and is best known for the production of luxury motor cars
Automobile
An automobile, autocar, motor car or car is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor...

 and aircraft engine
Aircraft engine
An aircraft engine is the component of the propulsion system for an aircraft that generates mechanical power. Aircraft engines are almost always either lightweight piston engines or gas turbines...

s.

Siddeley Autocars

Siddeley Autocars, of Coventry
Coventry
Coventry is a city and metropolitan borough in the county of West Midlands in England. Coventry is the 9th largest city in England and the 11th largest in the United Kingdom. It is also the second largest city in the English Midlands, after Birmingham, with a population of 300,848, although...

, was founded by John Davenport Siddeley (1866–1953) in 1902. Its products were heavily based on Peugeot
Peugeot
Peugeot is a major French car brand, part of PSA Peugeot Citroën, the second largest carmaker based in Europe.The family business that precedes the current Peugeot company was founded in 1810, and manufactured coffee mills and bicycles. On 20 November 1858, Emile Peugeot applied for the lion...

s, using many of their parts but fitted with English-built bodies. This company merged with Wolseley
Wolseley Motor Company
The Wolseley Motor Company was a British automobile manufacturer founded in 1901. After 1935 it was incorporated into larger companies but the Wolseley name remained as an upmarket marque until 1975.-History:...

 in 1905 and made stately Wolseley-Siddeley motorcars. They were used by Queen Alexandra
Alexandra of Denmark
Alexandra of Denmark was the wife of Edward VII of the United Kingdom...

 and the Duke of York, the later King George V
George V of the United Kingdom
George V was King of the United Kingdom and the British Dominions, and Emperor of India, from 6 May 1910 through the First World War until his death in 1936....

.

Siddeley-Deasy

In 1909, J. D. Siddeley resigned from Wolseley and took over the Deasy Motor Co and the company became known as Siddeley-Deasy
Siddeley-Deasy
Siddeley-Deasy was a British automobile, engine and aircraft company based in Coventry in the early 20th century. It was central to the formation, by merger and buy-out, of the later Armstrong Sideleley Motor and Armstrong Whitworth Aircraft companies....

. In 1912 the cars used the slogan "As silent as the Sphinx" and started to sport a Sphinx
Sphinx
A sphinx is a mythical creature with a lion's body and a human head or a cat head.The sphinx, in Greek tradition, has the haunches of a lion, the wings of a great bird, and the face of a woman. She is mythicised as treacherous and merciless...

  as a bonnet ornament, a symbol become synonymous with descendent companies. During World War I
World War I
World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

 the company produced trucks, ambulances, and staff cars. In 1915 airframes and aero-engines started to be produced as well.

Armstrong-Siddeley

In 1919 Siddeley-Deasy was bought out by Armstrong Whitworth Development Company of Newcastle upon Tyne
Newcastle upon Tyne
Newcastle upon Tyne is a city and metropolitan borough of Tyne and Wear, in North East England. Historically a part of Northumberland, it is situated on the north bank of the River Tyne...

 and became the Armstrong Siddeley Motors subsidiary. In 1927, Armstrong Whitworth merged its heavy engineering interests with Vickers
Vickers Limited
Vickers Limited was a famous British engineering conglomerate that merged into Vickers-Armstrongs in 1927.-Early history:Vickers was formed in Sheffield as a steel foundry by the miller Edward Vickers and his father-in-law George Naylor in 1828. Naylor was a partner in the foundry Naylor &...

 to form Vickers-Armstrongs. At this point, J. D. Siddeley bought Armstrong Siddeley and Armstrong Whitworth Aircraft into his control. In 1928, Siddeley partnered with Walter Gordon Wilson
Walter Gordon Wilson
Major Walter Gordon Wilson was an engineer and member of the British Royal Naval Air Service. He was credited by the 1919 Royal Commission on Awards to Inventors as the co-inventor of the tank, along with Sir William Tritton....

, inventor of the pre-selector gearbox, to create Improved Gears Ltd, which later became Self-Changing Gears
Self-Changing Gears
Self-Changing Gears was a British company, set up and owned equally by Walter Gordon Wilson and John Davenport Siddeley to develop and exploit the Wilson or pre-selector gearbox...

.

Armstrong Siddeley manufactured luxury cars, and later, aircraft engines. In 1935, J. D. Siddeley's interests were purchased by Hawker Aircraft
Hawker Aircraft
Hawker Aircraft Limited was a British aircraft manufacturer responsible for some of the most famous products in British aviation history.-History:...

 to form Hawker Siddeley, a famous name in British aircraft production. Armstrong Whitworth Aircraft became a subsidiary of Hawker. The aviation pioneer Thomas Octave Murdoch
Thomas Sopwith
Sir Thomas Octave Murdoch Sopwith, CBE, Hon FRAeS was an English aviation pioneer and yachtsman.-Early life:...

 - Tommy, later Sir Thomas, Sopwith - became chairman of Armstrong Siddeley Motors, a Hawker Siddeley subsidiary.

Armstrong Siddeley produced their last cars in 1960 and the aircraft engine business was merged with that of Bristol Aero Engines
Bristol Aeroplane Company
The Bristol Aeroplane Company, originally the British and Colonial Aeroplane Company, was both one of the first and one of the most important British aviation companies, designing and manufacturing both airframes and aero engines...

 to form Bristol Siddeley
Bristol Siddeley
Bristol Siddeley Engines Ltd was a British aero engine manufacturer. The company was formed in 1959 by a merger of Bristol Aero-Engines Limited and Armstrong Siddeley Motors Limited. In 1961 the company was expanded by the purchase of the de Havilland Engine Company and the engine division of...

 as part of an ongoing rationalisation of the British aerospace sector. Bristol Siddeley and Rolls-Royce
Rolls-Royce Limited
Rolls-Royce Limited was a renowned British car and, from 1914 on, aero-engine manufacturing company founded by Charles Stewart Rolls and Henry Royce on 15 March 1906 as the result of a partnership formed in 1904....

 merged in 1966, the latter name subsuming the former.

Motor cars

The first car produced from the union was a fairly massive machine, a 5-litre 30 hp; a smaller 18 appeared in 1922 and a 2-litre 14 hp was introduced in 1923. 1928 saw the company's first 15 hp six; 1929 saw the introduction of a 12 hp vehicle. This was a pioneering year for the marque, during which it first offered the Wilson
Walter Gordon Wilson
Major Walter Gordon Wilson was an engineer and member of the British Royal Naval Air Service. He was credited by the 1919 Royal Commission on Awards to Inventors as the co-inventor of the tank, along with Sir William Tritton....

 preselector gearbox
Preselector gearbox
A preselector or self-changing gearbox is a type of manual gearbox used on a variety of vehicles, most commonly in the 1930s...

 as an optional extra; it became standard issue on all cars from 1933. In 1930 the company marketed four models, of 12, 15, 20, and 30 hp, the latter costing £1450.

The company's rather staid image was endorsed during the 1930s by the introduction of a range of six-cylinder cars with ohv engines, though a four-cylinder 12 hp was kept in production until 1936. In 1933 the 5-litre six-cylinder Siddeley Special was announced, featuring a Hiduminium aluminum alloy
Hiduminium
The Hiduminium or R.R. alloys are a series of high-strength, high-temperature aluminium alloys, developed for aircraft use by Rolls-Royce before World War II. They were manufactured and later developed by High Duty Alloys Ltd....

 engine; this model cost £950. Car production continued at a reduced rate throughout 1940, and a few were assembled in 1941.

The week that World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 ended in Europe, Armstrong Siddeley introduced its first post-war models; these were the Lancaster
Armstrong Siddeley Lancaster
The Armstrong Siddeley Lancaster was the first post-war sports saloon automobile to be made by the British company of Armstrong Siddeley. It was made from 1945 to 1952....

 four-door saloon and the Hurricane drophead coupe
Coupé
A coupé or coupe is a closed car body style , the precise definition of which varies from manufacturer to manufacturer, and over time...

. The names of these models echoed the names of aircraft
Aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.Although...

 produced by the Hawker Siddeley Group (the name adopted by the company in 1935) during the war. These cars all used a 2-litre six-cylinder engines, increased to 2.3-litre engines in 1949. From 1953 the company produced the Sapphire, with a 3.4 litre six-cylinder engine.

In 1956 the model range was expanded with the addition of the 234 (a 2.3-litre four cylinder) and the 236 (with the older 2.3 litre six-cylinder engine). The Sapphire 346 sported a bonnet mascot in the shape of a Sphinx with namesake Armstrong Siddeley Sapphire jet engines attached. The 234 and 236 Sapphires might have looked to some of marque's loyal customers like a radical departure from the traditional Armstrong Siddeley appearance. However, in truth, they were simply too conservative in a period of rapidly developing automotive design. If the "baby Sapphire" brought about the beginning of the end for Armstrong Siddeley, it was because Jaguar had launched the unitary-construction 2.4 saloon in 1955, which was quicker, significantly cheaper, and much better-looking than the lumpy and frumpy 234/236 design.

The last model produced by Armstrong Siddeley was 1958's Star Sapphire, with a 4-litre engine, and automatic transmission
Automatic transmission
An automatic transmission is one type of motor vehicle transmission that can automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears manually...

. The Armstrong Siddeley was a casualty of the 1960 merger with Bristol; the last car left the Coventry factory in 1960.

Model list

Cars produced by Armstrong Siddeley had designations that came from the Tax horsepower
Tax horsepower
The tax horsepower or taxable horsepower was an early system by which taxation rates for automobiles were reckoned in some European countries, such as Britain, Belgium, Germany, France, and Italy; some US states like Illinois charged license plate purchase and renewal fees for passenger...

 rating of their engines.
Model Name Type Engine From To No. Produced
Thirty Various 4960 cc 1919 1931 2770
Eighteen Various 2400 cc 1921 1925 2500 inc 18/50
18/50 or 18 Mk.II Various 2872 cc 1925 1926 2500 inc Eighteen
Four-Fourteen Various 1852 cc 1923 1929 13,365
Twenty Short and Long chassis 2872 cc 1926 1936 8847
Fifteen Tourer, saloon 1900 cc 1921 1925 7203 inc 15/6
Twelve Tourer, saloon, sports 1236 (1434 cc from 1931) 1929 1937 12500
15/6 Tourer, saloon, sports 1900 cc (2169 cc from 1933) 1928 1934 7206 inc Fifteen
Siddeley Special Tourer, saloon, limousine 4960 cc 1933 1937 253
Short 17 Coupe, saloon, sports saloon 2394 cc 1935 1938 4260 inc Long 17
Long 17 Saloon, tourer, Atalanta sports saloon, Limousine, landaulette 2394 cc 1935 1939 4260 inc Short 17
12 Plus & 14 Saloon, tourer 1666 cc 1936 1939 3750
20/25 Saloon, tourer, Atlanta sports saloon
Limousine, landaulette
3670 cc 1936 1940 884
16 Saloon, Sports saloon 1991 cc 1938 1941 950
Lancaster 16
Armstrong Siddeley Lancaster
The Armstrong Siddeley Lancaster was the first post-war sports saloon automobile to be made by the British company of Armstrong Siddeley. It was made from 1945 to 1952....

4 door saloon 1991 cc 1945 1952 3597 inc Lancaster 18.
Lancaster 18
Armstrong Siddeley Lancaster
The Armstrong Siddeley Lancaster was the first post-war sports saloon automobile to be made by the British company of Armstrong Siddeley. It was made from 1945 to 1952....

4 door saloon 2309 cc 1945 1952 3597 inc. Lancaster 16.
Hurricane 16
Armstrong Siddeley Hurricane
The Armstrong Siddeley Hurricane was a two door, four seat drophead coupé automobile made by the British company of Armstrong Siddeley. It was made from 1946 to 1953 and based on the 1945 Armstrong Siddeley Lancaster....

Drophead coupé 1991 cc 1945 1953 2606 inc Hurricane 18.
Hurricane 18
Armstrong Siddeley Hurricane
The Armstrong Siddeley Hurricane was a two door, four seat drophead coupé automobile made by the British company of Armstrong Siddeley. It was made from 1946 to 1953 and based on the 1945 Armstrong Siddeley Lancaster....

Drophead coupé 2309 cc 1945 1953 2606 inc. Hurricane 16.
Typhoon
Armstrong Siddeley Typhoon
The Armstrong Siddeley Typhoon was a two door, four seat fixed head coupé car made by the British Armstrong Siddeley company. It was made from 1946 to 1949 and based on the 1945 Armstrong Siddeley Lancaster saloon and continued the company's theme of naming cars after Hawker Siddeley World War II...

2 door fixed head coupé
Coupé
A coupé or coupe is a closed car body style , the precise definition of which varies from manufacturer to manufacturer, and over time...

1991 cc 1946 1949 1701.
Tempest
Armstrong Siddeley Typhoon
The Armstrong Siddeley Typhoon was a two door, four seat fixed head coupé car made by the British Armstrong Siddeley company. It was made from 1946 to 1949 and based on the 1945 Armstrong Siddeley Lancaster saloon and continued the company's theme of naming cars after Hawker Siddeley World War II...

4 door fixed head coupé
Coupé
A coupé or coupe is a closed car body style , the precise definition of which varies from manufacturer to manufacturer, and over time...

1991 cc 1946 1949 6.
Whitley 18
Armstrong Siddeley Whitley 18
The Armstrong Siddeley Whitley was a large post-war sports saloon automobile and was a version of the 16/18 hp series made between 1946 and 1954 by the British company of Armstrong Siddeley...

Various 2309 cc 1949 1953 2624.
Sapphire 346 4 door saloon & Limousine 3435 cc 1952 1958 7697
Sapphire 234 4 door saloon 2290 cc 1955 1958 803
Sapphire 236 4 door saloon 2309 cc 1955 1957 603
Star Sapphire Saloon & Limousine 3990 cc 1958 1960 980
Star Sapphire Mk II Saloon & Limousine 3990 cc 1960 1960 1


A feature of many of their later cars was the option of an electrically controlled pre-selector gearbox.

Clubs


Like many British cars of the age, there are active owners' clubs supporting their continued use in numerous countries, e.g. the UK, Australia, New Zealand, the Netherlands and Germany.

Aircraft engines

Throughout the 1920s and 1930s, Armstrong Siddeley produced a range of low- and mid-power aircraft radial engine
Radial engine
The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders point outward from a central crankshaft like the spokes on a wheel...

s, all named after big cat
Big cat
The term big cat – which is not a biological classification – is used informally to distinguish the larger felid species from smaller ones. One definition of "big cat" includes the four members of the genus Panthera: the tiger, lion, jaguar, and leopard. Members of this genus are the only cats able...

s. They also produced a tiny 2-cylinder engine called the Ounce
Armstrong Siddeley Ounce
|-See also:-Bibliography:*Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9...

, another name for the snow leopard
Snow Leopard
The snow leopard is a moderately large cat native to the mountain ranges of South Asia and Central Asia...

, for ultralight aircraft.

The company started work on their first gas turbine
Gas turbine
A gas turbine, also called a combustion turbine, is a type of internal combustion engine. It has an upstream rotating compressor coupled to a downstream turbine, and a combustion chamber in-between....

 engine in 1939, following the design pioneered at the Royal Aircraft Establishment
Royal Aircraft Establishment
The Royal Aircraft Establishment , was a British research establishment, known by several different names during its history, that eventually came under the aegis of the UK Ministry of Defence , before finally losing its identity in mergers with other institutions.The first site was at Farnborough...

 by Alan Arnold Griffith
Alan Arnold Griffith
Alan Arnold Griffith was an English engineer, who, among many other contributions, is best known for his work on stress and fracture in metals that is now known as metal fatigue, as well as being one of the first to develop a strong theoretical basis for the jet engine.-Early work:A. A...

. Known as the "ASX" for "Armstrong Siddeley eXperimental", the original pure-turbojet design was later adapted to drive a propeller, resulting in the "ASP". From then on, AS turbine engines were named after snake
Snake
Snakes are elongate, legless, carnivorous reptiles of the suborder Serpentes that can be distinguished from legless lizards by their lack of eyelids and external ears. Like all squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales...

s. The Mamba and Double Mamba were turboprop
Turboprop
A turboprop engine is a type of turbine engine which drives an aircraft propeller using a reduction gear.The gas turbine is designed specifically for this application, with almost all of its output being used to drive the propeller...

 engines, the latter being a complex piece of engineering with two side-by-side Mambas driving through a common gearbox, and could be found on the Fairey Gannet
Fairey Gannet
The Fairey Gannet was a British carrier-borne anti-submarine warfare and airborne early warning aircraft of the post-Second World War era developed for the Royal Navy's Fleet Air Arm by the Fairey Aviation Company...

. The Python turboprop powered the Westland Wyvern
Westland Wyvern
The Westland Wyvern was a British single-seat carrier-based multi-role strike aircraft built by Westland Aircraft that served in the 1950s, seeing active service in the 1956 Suez Crisis...

 strike aircraft. Further development of the Mamba removed the reduction gearbox
Transmission (mechanics)
A machine consists of a power source and a power transmission system, which provides controlled application of the power. Merriam-Webster defines transmission as: an assembly of parts including the speed-changing gears and the propeller shaft by which the power is transmitted from an engine to a...

 to give the Adder turbojet.

Another pioneer in the production of the RAE engine design was Metrovick
Metropolitan-Vickers
Metropolitan-Vickers, Metrovick, or Metrovicks, was a British heavy electrical engineering company of the early-to-mid 20th century formerly known as British Westinghouse. Highly diversified, they were particularly well known for their industrial electrical equipment such as generators, steam...

, who started with a design known as the Metrovick F.2
Metrovick F.2
The Metropolitan-Vickers F.2 was an early turbojet engine and the first British design to be based on an axial-flow compressor. It was considered too unreliable for use during the war, and never entered production...

. This engine never entered production, and Metrovick turned to a larger design, the Beryl, and then to an even larger design, the Sapphire. Armstrong Siddeley later took over the Sapphire design, and it went on to be one of the most successful 2nd generation jet engines, competing with the better-known Rolls-Royce Avon
Rolls-Royce Avon
|-See also:-Bibliography:* Gunston, Bill. World Encyclopaedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9-External links:**** a 1955 Flight article on the development of the Avon...

.

The company went on to develop an engine - originally for unmanned Jindivik target drone
Unmanned aerial vehicle
An unmanned aerial vehicle , also known as a unmanned aircraft system , remotely piloted aircraft or unmanned aircraft, is a machine which functions either by the remote control of a navigator or pilot or autonomously, that is, as a self-directing entity...

s - called the Viper. This product was further developed by Bristol Siddeley and, later, Rolls-Royce and was sold in great numbers over many years. A range of rocket motors were also produced, including the Snarler
Armstrong Siddeley Snarler
The Armstrong Siddeley Snarler was a small rocket engine used for combined-power experiments with an early turbojet engine. It was the first British liquid-fuelled rocket engine to fly Unlike other rocket British projects that used hydrogen peroxide, Armstrong Siddeley's used liquid oxygen...

 and Stentor
Armstrong Siddeley Stentor
The Armstrong Siddeley Stentor was a two-chamber rocket engine used to power the Blue Steel stand-off missile carried by Britain's V-bomber force...

. The rocket development complemented that of Bristol, and Bristol Siddeley would become the leading British manufacturer of rocket engines for missiles.
Aero and rocket engines
year type
Armstrong Siddeley Cheetah radial
Armstrong Siddeley Civet
Armstrong Siddeley Genet Major
|-See also:-Bibliography:* Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6....

7 cylinder radial
Armstrong Siddeley Cougar
Armstrong Siddeley Cougar
|-See also:-Bibliography:* Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6....

1945 radial
Armstrong Siddeley Deerhound
Armstrong Siddeley Deerhound
|-See also:-Bibliography:*Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9...

1935 21 cylinder 3 row radial
Armstrong Siddeley Genet
Armstrong Siddeley Genet
-Bibliography:* Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.-External links:*...

Armstrong Siddeley Genet Major
Armstrong Siddeley Genet Major
|-See also:-Bibliography:* Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6....

1928 radial
Armstrong Siddeley Hyena
Armstrong Siddeley Hyena
|-See also:-Bibliography:* Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6....

15 cylinder 3 row radial
Armstrong Siddeley Jaguar
Armstrong Siddeley Leopard
Armstrong Siddeley Leopard
|-See also:-Bibliography:* Smith, Herschel. Aircraft Piston Engines. New York, New York: McGraw-Hill, 1981. ISBN 0-07-058472-9.* Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6....

Armstrong Siddeley Lynx 1920 radial
Armstrong Siddeley Mongoose
Armstrong Siddeley Mongoose
|-See also:-Bibliography:* Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.-External links:*...

Armstrong Siddeley Ounce
Armstrong Siddeley Ounce
|-See also:-Bibliography:*Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9...

1920 2 cylinder opposed
Armstrong Siddeley Panther
Armstrong Siddeley Panther
|-See also:-Bibliography:* Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6....

Armstrong Siddeley Serval
Armstrong Siddeley Serval
|-See also:-Bibliography:* Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9...

Armstrong Siddeley Tiger
Armstrong Siddeley Tiger
-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.-External links:*...

Armstrong Siddeley ASP turbojet
Armstrong Siddeley Double Mamba Two Mamba linked by gearbox
Armstrong Siddeley Mamba turboprop
Armstrong Siddeley Python turboprop
Armstrong Siddeley ASX turbojet
Armstrong Siddeley Sapphire 1948 turbojet
Armstrong Siddeley Adder 1948 turbojet
Armstrong Siddeley Viper
Armstrong Siddeley Snarler
Armstrong Siddeley Snarler
The Armstrong Siddeley Snarler was a small rocket engine used for combined-power experiments with an early turbojet engine. It was the first British liquid-fuelled rocket engine to fly Unlike other rocket British projects that used hydrogen peroxide, Armstrong Siddeley's used liquid oxygen...

rocket

Diesel engines

Between 1930 and 1955, Armstrong Siddeley produced the 'AS' range of medium-speed diesel engine
Diesel engine
A diesel engine is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber...

s, with a top speed of 1500 rpm. These air-cooled engines were intended for industrial and marine use, producing 10 horsepower (7.4 kW) per cylinder, and each cylinder had a capacity of 988cc (60.2 cubic inches). 1-, 2- and 3-cylinder engines were produced, designated the AS1, AS2 and AS3 respectively. The engines were often used in barges and narrowboat
Narrowboat
A narrowboat or narrow boat is a boat of a distinctive design, made to fit the narrow canals of Great Britain.In the context of British Inland Waterways, "narrow boat" refers to the original working boats built in the 18th, 19th, and 20th centuries for carrying goods on the narrow canals...

s on British canal
Canal
Canals are man-made channels for water. There are two types of canal:#Waterways: navigable transportation canals used for carrying ships and boats shipping goods and conveying people, further subdivided into two kinds:...

s, as well as in domestic and light industrial electric generator sets.

See also


Armstrong Siddeley rocket engines
Armstrong Siddeley aircraft engines

External links

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