Fairlie locomotive

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David Lloyd George of the Ffestiniog Railway David lloyd george.jpg
David Lloyd George of the Ffestiniog Railway
Diagram of a Fairlie locomotive Fairlie.png
Diagram of a Fairlie locomotive

A Fairlie locomotive is a type of articulated steam locomotive that has the driving wheels on bogies. The locomotive may be double-ended (a double Fairlie) or single ended (a single Fairlie). Most double-ended Fairlies had wheel arrangements of 0-4-4-0T or 0-6-6-0T.

Contents

While the Fairlie locomotives are now used only on heritage railways, the vast majority of diesel and electric locomotives in the world today follow a form not very different from the Fairlie — two power trucks with all axles driven, and many also follow the Fairlie's double-ended concept, capable of being driven equally well in both directions.

Development of the design

Fairlie locomotive with two separate boilers built for Burma Railways by the Vulcan Foundry Vulcan Fairlie.jpg
Fairlie locomotive with two separate boilers built for Burma Railways by the Vulcan Foundry

The Scottish engineer Robert Francis Fairlie patented his design in 1864. He had become convinced that the conventional pattern of locomotive was seriously deficient; they wasted weight on unpowered wheels (the maximum tractive effort a locomotive can exert is a function of the weight on its driving wheels) and on a tender that did nothing but carry fuel and water without contributing to the locomotive's adhesive weight. Furthermore, the standard locomotive had a front and back, and was not intended for prolonged driving in reverse, thus requiring a turntable or wye at every terminus.

Double Fairlie Merddyn Emrys at Porthmadog Double Fairlie Porthmadog - 4722059455.jpg
Double Fairlie Merddyn Emrys at Porthmadog

Fairlie's answer was a double-ended steam locomotive, carrying all its fuel and water aboard the locomotive and with every axle driven. It had a double-ended boiler, with one firebox in the centre and a smokebox at each end.

Predecessors

Fairlie was not the first engineer to design and build a double-engine. In 1850, the Belgian company John Cockerill & Co built a double-boiler locomotive called Seraing which featured two independently articulated driving bogies. It had several differences from Fairlie's design, notably the buffers were fixed to the carrying frame, not the bogies, and the bogies were attached to the frame using four carrying pins, which restricted the degree of articulation. Seraing was a failure and Robert Fairlie was likely unaware of it when he produced his design in the 1860s. [1] In the early 1860s, Archibald Sturrock, the locomotive superintendent of the Great Northern Railway, experimented with powered bogies under the tenders of GNR steam locomotives. While these were not ultimately successful, Fairlie was influenced by Sturrock's work, and by the use of back-to-back locomotives on the Bhor Ghat incline on the Great Indian Peninsula Railway starting in 1856. [2]

Firebox

Mountaineer built in 1866 by James Cross and Company for the Neath and Brecon Railway Mountaineer 0-4+4-0 locomotive.png
Mountaineer built in 1866 by James Cross and Company for the Neath and Brecon Railway

The first locomotive was The Progress, built in 1865 by James Cross and Company for the Neath and Brecon Railway. [3] However, having the draught from both halves of the boiler through one firebox was unsuccessful. There was a tendency for most of the hot gases from the fire to go through one half of the boiler, so the other half made little contribution to steam-raising and was inefficient. The first, Festiniog Railway Little Wonder, had separate fireboxes with a water jacket between them and proved far more successful.

Controls

The locomotive driver (US: engineer) worked on one side of the locomotive, and the fireman on the other; the fireboxes separated them. The regulators for both power bogies were located above the centre of the fireboxes, with the steam brake valve at one end.

Power bogies

Underneath, the locomotive was supported on two swivelling powered bogies (US: trucks), with all wheels driven; smaller locomotives had four-wheel bogies, while larger had six-wheel. The cylinders on each power bogie pointed outward, towards the locomotive ends. Couplers and buffers (where fitted) were mounted on the bogies, not on the locomotive frame, so that they swivelled with the curvature of the track.

Steam supply

Steam was delivered to the cylinders via flexible tubing. Initially, this was a coiled copper tube but this would fracture after a period of use. Later locomotives had rigid connecting tubes with the necessary flexibility provided by metal ball-and-socket joints similar to those used in laboratory glassware.

Fuel and water

Fuel and water were carried on the locomotive, in side tanks beside each boiler for the water, and bunkers for the fuel above them.

Examples in use

Armed with the success of Little Wonder on the Ffestiniog, Fairlie staged a series of very successful demonstrations on the Ffestiniog line in February 1870 to high-powered delegations from the many parts of the world. This sold his invention (and the concept of the narrow gauge railway on which it was based) around the world.

Locomotives were built for many British colonies, for the Russian Empire, and even one example for the United States.

In 1879, the first government railway line in Western Australia from Geraldton to Northampton utilised two double Fairlies as its third and fourth items of motive power, respectively, but without much success. The only really successful uses of the Fairlie locomotive, other than on the Ffestiniog Railway, were in Mexico, New Zealand, and Russia (on the Transcaucasian Railway).

Wales

David Lloyd George built in 1992 for the Ffestiniog Railway DavidLloydGeorge-P6031714.JPG
David Lloyd George built in 1992 for the Ffestiniog Railway

In 1869, Robert Fairlie's company built a locomotive named Little Wonder for the Ffestiniog Railway, a narrow gauge slate railway in North Wales. The Ffestiniog was the first 1 ft 11+12 in (597 mm) gauge railway to use locomotives. The Fairlie design meant that the fireboxes and ashpans were not restricted by frame or track width, but only by the overall loading gauge. Little Wonder was such a success that Fairlie gave the Festiniog Railway Company a perpetual licence to use his locomotive patent without restriction, in return for using the line and the success of its Fairlie locomotives in his publicity. During its original operation, the Ffestiniog owned a total of five Fairlie locomotives, one of which is now part of the UK National Collection. Since the reopening of the railway in presentation, their Boston Lodge workshops have built three new Double Fairlies, the most recent being James Spooner II which entered service in 2023 to replace Earl of Merioneth. [4] [5]

United States

Mason Janus built in 1877 Mason Janus 1877.jpg
Mason Janus built in 1877

The locomotive sold in the US was ordered for the newly built Denver and Rio Grande Railroad in 1872, and was named "Mountaineer". It was the only Double Fairlie to operate on an American narrow gauge railway. This was a smaller locomotive with four-wheel bogies, giving it a 0-4-4-0 T configuration. [6] The railroad's experience with the locomotive was typical, and an indication of the fact that, though Fairlie had eliminated several problems of the conventional locomotive, he had introduced new ones of his own. At least one double Fairlie 0-6-6-0 T Janus (pictured) was built by the Mason Machine Works in Taunton, Massachusetts and worked on the Lehigh Valley Railroad.

Canada

Toronto and Nipissing Fairlie 0-6-6-0 No. 9 Shedden built by the Avonside Engine Company in 1871 TNFairSCol.jpg
Toronto and Nipissing Fairlie 0-6-6-0 No. 9 Shedden built by the Avonside Engine Company in 1871

Five narrow-gauge Fairlie Patent locomotives were built by the Avonside Engine Company, Bristol in the early 1870s for use by Canadian railways.

The Toronto and Nipissing Railway used a single 3 ft 6 in (1,067 mm) gauge Fairlie from 1871 until the line was converted to 4 ft 8+12 in (1,435 mm) standard gauge in 1883.

The Toronto, Grey and Bruce Railway of Ontario also used one 3 ft 6 in (1,067 mm) gauge Fairlie locomotive, delivered in 1872.

In Cape Breton Island, three 3 ft (914 mm) gauge Fairlie Patent locomotives built by Bristol's Avonside Company were used to haul coal between Sydney and Reserve Mines from 1872 until 1902. Herb MacDonald's book "Cape Breton Railways: An Illustrated History" (Cape Breton University Press, 2012) states that "a railway industry journal published early in 1903 stated that 'the old double-end locomotives... have recently been taken apart at the Reserve, and will be disposed of as old junk. The machinists who took them apart say it was the hardest job they ever tackled, as the engines were very strongly built and the parts mostly forge-made'."

Mexico

Locomotora de Montana Fairlie, Veracruz, circa 1903. Locomotora de montana Fairlie.jpg
Locomotora de Montaña Fairlie, Veracruz, circa 1903.

In Mexico, the Ferrocarril Mexicano (FCM) used Fairlies on a mountainous stretch of line between Mexico City and Veracruz, where 49 enormous 0-6-6-0 T Fairlies weighing about 125 short tons (112 long tons; 113 t) apiece were imported from England. The largest and most powerful locomotives built there up to then, they were used until the line was electrified in the 1920s. The tractive effort figures (see table below) are notably high compared to relatively modern locomotives (such as the BR Standard Class 9F).

Rolt [7] wrote:

"...it was the Mexican Railway that became Fairlie's most devoted adherent. Three twelve-wheeled Avonside Fairlies were built for this Company in 1871 to work traffic on the steeply graded section of the main line between Cordoba and the 7,923 ft (2,415 m). Boca del Monte, Mexico summit in the Orizaba mountains, a distance of 108 miles (174 km). So successful were they that they were the forerunners of no less than fifty Fairlies supplied to Mexico by Avonside and other British builders over a period of forty years."

Durrant [8] took a more sceptical view:

"The largest Fairlies built were...102-short-ton (91-long-ton; 93 t) examples for the Mexicano Railway...Despite their impressive proportions, these engines were devoid of superheaters or modern valve arrangements and were soon replaced by electrification."

This table shows brief details of the locomotives. Detailed specifications can be found at steamlocomotive.com [9]

ClassRoad numbersDateBuilderT.E. (lb or kg)Weight (lb or kg))Notes
n/kn/k1871 Avonside n/kn/k3 locomotives
n/kn/kn/kn/kn/kn/k19 locomotives
R-1159-1701889 Neilson 39,893 lb or 18,095 kg216,994 lb or 98,427 kg-
R-1171-1801902 North British 37,614 lb or 17,061 kg222,656 lb or 100,995 kg-
R-2181-1821907North British46,059 lb or 20,892 kg269,024 lb or 122,027 kg-
R-3183-1851911 Vulcan Foundry 59,133 lb or 26,822 kg309,120 lb or 140,210 kg-

Key:

Durrant shows a photograph (credited to English Electric) of FCM number 184, built by Vulcan Foundry (VF) in 1911. This is of typically British appearance apart from the sanding dome which, curiously, is provided at one end only. This photograph of FCM number 183 Archived 11 July 2011 at the Wayback Machine shows a locomotive of distinctly American appearance. If it is one of the VF engines, it has certainly been heavily re-built.

The VF engines were almost certainly built as oil-fired. The photograph in Durrant's book looks like a works photograph showing the engine in new condition and there are rectangular tanks on top of the boilers, which was the usual arrangement on oil-fired Fairlies. Heat from the boilers kept the oil warm and prevented it from becoming too viscous in cold weather.

Ireland

New Zealand

In New Zealand, the R class and S class single Fairlies and the B class and E class double Fairlies were ordered in the 1870s for use on the narrow gauge (3 ft 6 in or 1,067 mm) system built under Julius Vogel's 1870 "Great Public Works" programme to open up the country. Three of the S class Fairlies were sold to Western Australian Government Railways in 1891. [12]

Russia

Russian F series oil-fired Fairlie built under licence in 1884 Parovoz Ferly.jpg
Russian F series oil-fired Fairlie built under licence in 1884

In Russia, Fairlies were used on a line between Tambov and Saratov (1871–1887) and on Surami Pass of the Transcaucasian Railway (since 1872). These locomotives, like the ones used in Mexico were an 0-6-6-0 T configuration. The first of them were built in England (Avonside Engine Company, Yorkshire Engine Company and Sharp, Stewart and Company), the second tranche were made by German factories (1879), the last – 17 for the Russian State Railways by the Kolomensky Works, Kolomna (1884) under licence. The largest locomotives weighed 90 tons and were oil-fired. In 1912 all Fairlies in Russia were included in series F and used until 1934, when the line through Surami pass was electrified.

India and Burma

In 1879, the Avonside Engine Company built 25 Double Fairlies intended for service in the Third Anglo-Afghan War. The order was cancelled in 1880, but 17 locomotives had already been built and they were purchased by India, though one was lost at sea during transit to India. The remaining locomotives worked on the Bolān Pass Railway but were not successful and were put into storage in 1887. Ten went to Burma in 1896 and four others were sent to the Nilgiri Mountain Railway in 1907. The Nilgiri locomotives worked there until at least 1914. [13] [14]

Problems with the design

Fuel and water

Capacity for fuel and water is limited by the layout of the locomotive. Fairlie's design has less room for fuel supplies than a normal tank locomotive, that can be fitted with a bunker at the back of the cab. Solid fuel can't be carried in a tender because there is no access from the central cab. As was later the case with Bulleid's Leader class locomotives, limited fuel supplies would not have been a problem if fuel oil had been used instead of coal. Some of the large Fairlies for Mexico (see above) were oil-fired and oil-firing has, in recent times, been used on the Ffestiniog Railway.

Ffestiniog Railway's Earl of Merioneth (later Livingston Thompson) at Porthmadog, summer 1967 Ffestioniog Railway Earl of Merioneth at Porthmadog.jpg
Ffestiniog Railway's Earl of Merioneth (later Livingston Thompson) at Porthmadog, summer 1967

Steam pipes

The flexible steam pipes to and from the cylinders of each swivelling engine were prone to leakage which wasted power. These problems were partially solved. It is recorded by Rolt that difficulties encountered in 1909 with the design and construction of steam-tight flexible steam connections for the Garratt locomotive were solved by Beyer, Peacock & Company's designers after studying the spherical steam joints on a Fairlie locomotive built for the Ffestiniog Railway. [15]

Power bogies

Unpowered wheels on a steam locomotive reduce its tendency to wander or 'hunt' when rolling on straight track, and lead the locomotive into curves, thereby reducing derailments. Early Fairlies had a tendency to be rough on the track, and more prone to derailment than they should have been. The Festiniog Railway's first Fairlie Little Wonder was worn out after less than twenty years' use. To a large extent the problem was not the use of power bogies but faults in their design and especially the absence of weights on the trailing ends of the bogies to counterbalance the cylinders. [16] Subsequent FR engines were much easier on the track. All FR Fairlies have had a reputation for a smooth footplate ride when compared with the original George England and Co. built 0-4-0 engines.

Visibility

David Lloyd George cab at Blaenau Ffestiniog FR David Lloyd George Blaenau Ffestiniog 1 2009-05-31.jpg
David Lloyd George cab at Blaenau Ffestiniog

The driver is on one side of the firebox and the fireman on the other. As a result, the locomotive is left-hand drive going in one direction and right-hand drive in the other. This potentially reduces the visibility of signals.

Single Fairlie locomotive

Swindon Marlborough & Andover Railway Single Fairlie 0-4-4T of 1878 SM&AR Single Fairlie 1878.jpg
Swindon Marlborough & Andover Railway Single Fairlie 0-4-4 T of 1878
FR Taliesin works photograph 1876 FR Taliesin works photograph 1876.jpg
FR Taliesin works photograph 1876
Single Fairlie Gowrie works photo of 1908 Gowrie works photo.jpg
Single Fairlie Gowrie works photo of 1908
Mason Bogie steam locomotive "Wm. Mason". Builder's photo from 1874 Wm Mason1.jpg
Mason Bogie steam locomotive "Wm. Mason". Builder's photo from 1874

A variation of the Fairlie that enjoyed some popularity, especially in the United States, was the single Fairlie, essentially half a double Fairlie, with one boiler, a cab at one end, and a single articulated power bogie combined with an unpowered bogie under the cab, maintaining the ability to negotiate sharp turns. This design abandoned the bidirectional nature of the double Fairlie but gained back the ability to have a large bunker and water tank behind the cab, and the possibility of using a trailing tender if necessary. The single conventional boiler made maintenance cheaper and did away with the crew's separation.

The first Single Fairlie locomotive was an 0-4-4 T designed and constructed by Alexander McDonnell for the Great Southern & Western Railway in 1869. [17]

The design was especially popular with William Mason, Fairlie's licensee in the United States, who built 146 or so Mason Bogie locomotives, which were a variant on this design. In the UK, a single Fairlie 0-4-4 T was used by the Swindon, Marlborough and Andover Railway and three 0-6-4 T s by the North Wales Narrow Gauge Railways. As well as their iconic double Fairlies, the Ffestiniog railway also has a 0-4-4 T single Fairlie loco, the power bogie of which is essentially the same as those used by their double Fairlies.

In both the UK and the USA, single Fairlies were the first locomotives in each country to use the European Walschaerts valve gear. The Stephenson link gear, which was usual at the time, used multiple eccentrics between the frames but the Walschaerts gear was mounted outboard of the frames and connecting rods. This was advantageous because the Fairlie system required this space between the frames for the bogie pivot.

Péchot-Bourdon locomotive

Baldwin-built Pechot-Bourdon locomotive, driver's side Pechot-Bourdon Baldwin 0-4-4-0.jpg
Baldwin-built Péchot-Bourdon locomotive, driver's side
Baldwin-built Pechot-Bourdon locomotive, fireman's side Baldwin Pechot Bourdon.jpg
Baldwin-built Péchot-Bourdon locomotive, fireman's side

The Péchot-Bourdon locomotive was the final development of the Fairlie type. The Péchot-Bourdon was developed by Captain Péchot of the French artillery to operate on 600 mm (1 ft 11+58 in) gauge railways associated with field artillery and fortresses. The design was chosen with the belief that if one boiler or set of valve gear was damaged by enemy fire, the loco could continue to operate.[ citation needed ] The primary difference between a Fairlie and the Péchot-Bourdon is that the latter only had one steam dome. Only one design was constructed, an 0-4-4-0 T . About fifty examples were constructed in 1906, and a further 280 were constructed during World War I, some by the American Baldwin Locomotive Works.

Preservation

Two examples are preserved, one in Frankfurter Feldbahnmuseum on loan from Dresden Transport Museum, Germany, [18] and one in Serbia at Pozega Railway Museum. [19]

Models

A 1:32 scale model of the Péchot-Bourdon locomotive is produced by Scalelink. [20]

Modified Fairlie locomotive

Builder's works picture of South African Class FC Modified Fairlie no. 2310 Class FC no. 2310 a.jpg
Builder’s works picture of South African Class FC Modified Fairlie no. 2310

The Modified Fairlie was introduced by the North British Locomotive Company to the South African Railways in 1924. It was similar in appearance to a Garratt locomotive but the boiler, fuel and water tanks were all mounted on a single frame which was pivoted on the power bogies. This arrangement differs from the Garratt in which the fuel and water tanks are mounted directly on the power bogies.

Fairlies today

Single Fairlie Taliesin (nearest camera) Taliesin and Blanche at Tan-y-Bwlch.jpg
Single Fairlie Taliesin (nearest camera)

Operational

The Ffestiniog Railway in Wales still uses Fairlie locomotives. It has three double Fairlies in running condition. The most recent of these, James Spooner, was built in 2023 in the Ffestiniog's Boston Lodge works on the 153th anniversary of Little Wonder's trials of 1870. Merddin Emrys of 1879 was the first engine to be built at Boston Lodge. The Ffestiniog also owned and operated Taliesin, a single Fairlie, from 1876 to 1927. It was scrapped in 1935 but a replica was built at Boston Lodge in 1999.

The Fairlies on the Ffestiniog Railway were designed to burn coal. Following trials in 1971, in common with most other Ffestiniog engines, they were modified to burn oil. In 2005, Earl of Merioneth was converted to coal having been built as an oil burner. [21] The success of this conversion resulted in Merddin Emrys, the oldest of the FR Fairlies, being converted back to coal burning in 2007. [22]

The oldest Fairlie still in operation is a Mason Bogie preserved at the Henry Ford Museum in Dearborn, Michigan. The 0-6-4 T locomotive was built in 1873 and still hauls passengers on a tourist train during the summer season.

Non-operational

Ffestiniog locomotive Livingston Thompson at the National Railway Museum, York Ffestiniog locomotive Livingston Thompson at NRM York - DSC07774.JPG
Ffestiniog locomotive Livingston Thompson at the National Railway Museum, York

Double Fairlie locomotive The Earl of Merioneth is now preserved, at Boston Lodge works where it was built in 1979. It was withdrawn from service on the 8 April 2018. [23] [ unreliable source ] Double Fairlie Josephine (Dunedin & Port Chalmers Railway #2, NZR E 175, PWD #504) is preserved at Dunedin, New Zealand's, Otago Settlers' Museum, and R 28 a single Fairlie, at Reefton. R 28 is the only original British Single Fairlie to have survived, the Festinog's Taliesin is a replica built in 1999. The remains of another, R class number 271, was dumped at Oamaru to protect the railway yards against coastal erosion in 1930, and has since passed into the ownership of the Oamaru Steam & Rail Restoration Society. Two more R class boilers, and two power bogies from one each B and E class double Fairlies are held by the Canterbury Railway Society at its Ferrymead Railway in Christchurch.

A double Fairlie tramway type engine is also preserved in Eastern Germany, and one of the original Festiniog locomotives, Livingston Thompson of 1885, is in the National Railway Museum in York.

In fiction

In the children's television series Thomas & Friends , based on the Rev. W. Awdry's The Railway Series , Mighty Mac is a double Fairlie on the narrow-gauge Skarloey Railway.

See also

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Under the Whyte notation for the classification of steam locomotives, 0-6-6 represents the wheel arrangement of no leading wheels, six powered and coupled driving wheels on three axles and six trailing wheels on three axles. All locomotives with this wheel arrangement were tank locomotives; no 0-6-6 tender locomotives were recorded.

References

  1. "The Fairlie System". Engineering: 395–398. 14 November 1873.
  2. "Robert Francis Fairlie". George England, Robert Fairlie and The Hatcham Iron Works. Maybrey Reliance. January 2017.
  3. "James Cross and Co". www.gracesguide.co.uk.
  4. "James Spooner rides again". Archived from the original on 5 June 2016. Retrieved 22 May 2016.
  5. Johnson, Peter (30 April 2017). Festiniog Railway: The Spooner Era and After 1830 - 1920. Pen & Sword.
  6. Vulcan Foundry #672 built in 1873, Vulcan Foundry Photographic Loco List, 10 February 2013. The web site includes two photos of this engine.
  7. Rolt, L T C (1964). A Hunslet Hundred. David & Charles. pp. 108–109. ISBN   978-0-7153-4038-7.
  8. Durrant, A E (1987). Garratt Locomotives of the World. Bracken Books, London. pp. 12–13. ISBN   978-1-85170-141-4.
  9. "Articulated Locomotive Specifications". Archived from the original on 5 July 2008.
  10. Abbott, Rowland A.S. (1975). The Fairlie Locomotive. Newton Abbot: David & Charles. ISBN   978-0-7153-6972-2.
  11. "Narrow Gauge Railways Versus Broad Gauge". The Argus (Melbourne, Vic. : 1848 - 1956) . Melbourne, Vic.: National Library of Australia. 20 April 1871. p. 7. Retrieved 23 October 2011.
  12. Stewart 1974, p. 26.
  13. The Engineer. Vol. 290. Morgan-Grampian (Publishers). 1960. p. 384.
  14. Locomotive, Railway Carriage and Wagon Review. Locomotive Publishing Company. 1914. pp. 288–290.
  15. Rolt L.T.C., A Hunslet Hundred David & Charles, Dawlish, 1964, (page 66) quoted by Tom Rolt from Edgar Alcock regarding his time at Beyer Peacock's.
  16. Boyd J.I.C., The Festiniog Railway Oakwood, 1960 Vol 1 (page 144)
  17. "Double Bogie Tank Locomotive". Engineering. 18 March 1870. p. 180.
  18. "True Articulated Steam Locomotives Part 2". Internationalsteam.co.uk. Retrieved 6 September 2013.
  19. "Pozega Railway Museum". Internationalsteam.co.uk. Retrieved 6 September 2013.
  20. "Narrow Gauge (60cm) Railway". Scalelink.co.uk. Retrieved 6 September 2013.
  21. "Earl of Merioneth". Ffestiniog Railway web site. Archived from the original on 16 July 2011.
  22. "Merddin Emrys". Ffestiniog Railway web site. Archived from the original on 29 September 2011.
  23. http://www.festrail.co.uk/content/publish/news/557.shtml.{{cite web}}: Missing or empty |title= (help)

Bibliography