GWR 5700 Class
||This article includes a list of references, but its sources remain unclear because it has insufficient inline citations. (March 2012)|
|Great Western Railway 5700 class|
GWR 5700 Class no. 4612, as preserved on the Bodmin & Wenford Railway.
|UIC classification||C nt|
|Gauge||4 ft 8 1⁄2 in (1,435 mm)|
|Driver diameter||4 ft 7 1⁄2 in (1.410 m)|
|Wheelbase||15 ft 6 in (4.72 m)|
|Length||31 ft 2 in (9.50 m) over buffers|
|Width||8 ft 7 in (2.62 m)|
|Height||12 ft 3 1⁄16 in (3.74 m)|
|Axle load||16 tons 15 cwt (37,500 lb or 17.0 t) full[b]|
|Locomotive weight||47 tons 10 cwt (106,400 lb or 48.3 t) full[c]|
|Fuel capacity||3 tons 6 cwt (7,400 lb or 3.4 t)[d]|
|Water capacity||1,200 imp gal (5,500 l; 1,400 US gal)[e]|
|Boiler pressure||200 lbf/in2 (1.38 MPa)|
|Firegrate area||15.3 sq ft (1.42 m2)|
|1,075.7 sq ft (99.94 m2)|
|– Firebox||102.3 sq ft (9.50 m2)|
|– Total||1,178.0 sq ft (109.44 m2)|
|Cylinder size||17.5 in × 24 in (444 mm × 610 mm)|
|Valve type||Slide valves|
|Tractive effort||22,515 lbf (100.15 kN)|
|Operator(s)||GWR » BR|
|Axle load class||GWR: Blue until 1950, then Yellow|
The Great Western Railway (GWR) 5700 Class, or 57xx class, is a class of 0-6-0 pannier tank steam locomotive, built between 1929 and 1950. 863 were built, making them the most prolific class of the GWR, and one of the most numerous classes of British steam locomotive.[g]
As a result of the 1955 Modernisation Plan, the 5700 Class was withdrawn from BR service between 1956 and 1966. Twenty withdrawn locomotives were sold to London Transport and industry, of which eleven were later preserved, along with five that were retrieved from a scrapyard.[h]
- 1 Background
- 2 Design
- 3 Production
- 4 Numbering
- 5 Accidents and incidents
- 6 Other pannier tank locomotives
- 7 Withdrawal and mileages
- 8 Use after British Railways
- 9 Preservation
- 10 In fiction
- 11 Models
- 12 See also
- 13 Notes
- 14 References
- 15 Further reading
- 16 External links
The GWR started designing and building 0-6-0 tank locomotives in 1860, and this continued into the BR era until 1956, with a total of 2,393 being built. The GWR also used 0-6-0 tank locomotives from other manufacturers' designs (from its subsidiary and absorbed railways' stock), and since 1898 it always had at least 1,000 tank locomotives in stock.
The early 0-6-0 tank engines were fitted with either saddle tanks (wrapped over the boiler) or side tanks (mounted at the side of the boiler and reaching down to the running platform). GWR first fitted pannier tanks (mounted on the side of the boiler but not reaching down to the running platform) in 1898 to nine 4-4-0 tank locomotives and, in 1901, to five 0-6-0T locomotives which were also fitted with Belpaire fireboxes. The shape of the Belpaire firebox gives a larger surface area which improves heat transfer and steam production, but their rectangular shape made them difficult to combine with saddle tanks. Locomotives fitted with pannier tanks have a lower centre of gravity than those with saddle tanks (enabling higher speeds on curves), and access for maintenance is easier than for those fitted with side tanks.
Churchward's period as Chief Mechanical Engineer (1901-21) is well known for significant improvements in locomotive design and manufacture, and the development of standard designs. However, the scope of the standard designs did not include the 0-6-0 tank locomotive, and the GWR did not introduce any new 0-6-0 tank designs from 1897 to 1928 (with exception of the GWR 1361 class of five 0-6-0 saddle tanks in 1910).
However, pannier tanks and Belpaire fireboxes became the standard for the rebuilding of various 0-6-0 tank locomotives (projected in 1902 and getting fully underway by 1910). The rebuilding program also included a number of other changes including:
- improved cab designs, eventually becoming fully enclosed
- superheating, which by 1929, had been found to have little benefit on shunting engines
- adaptation for working with autocoaches for push–pull trains (auto-working)
- increasing boiler pressures, for example, the various rebuilds of the GWR 2721 class started at 150 lbf/in2 (1.03 MPa), increasing to 165 lbf/in2 (1.14 MPa), and then to 180 lbf/in2 (1.24 MPa)
With the completion of grouping in 1923, GWR's collection of 0-6-0 tank locomotives was expanded with the stock from 28 acquired companies. The acquired tank locomotives came from different manufacturers, were a mixture of side, saddle and pannier, and varied widely by size and state of repair. In addition, GWR's stock was wearing out, and the variety of classes was problematic for maintenance and rostering. Collett had to produce a new standard design for 0-6-0 pannier tanks. The result was the 5700 class.
The first batch of 300 locomotives built between 1929 and 1931 were similar in appearance to older 0-6-0 tank engines that had been rebuilt as pannier tanks, particularly the later rebuilds of the 2721 class. The 2721 class was itself a development of the 1854 class, which in turn was based on the 645 class.
le Fleming describes the 5700 class as "an almost unaltered continuation of the 27xx rebuilds" and Holcroft describes them as "practically identical to 2721 rebuilds", but according to Nock it was "a thoroughly modern design", and Jones notes that design included "numerous detailed improvements" and reflected improved construction techniques. The main differences from the 2721 class include:
- increased boiler pressure, from 180 lbf/in2 (1.24 MPa) to 200 lbf/in2 (1.38 MPa), giving a corresponding increase in tractive effort
- improved valve settings
- longer frame, from 26 ft 9 in (8.15 m) to 27 ft 6 in (8.38 m)
- fully enclosed cab
The initial design also included a return to non-fluted coupling rods and laminated springs beneath the leading and driving axleboxes (both features harking back to the 1854 class). The locomotives were also fitted with cast iron chimneys (which had only rarely been fitted to earlier locomotives), and the whistles were fitted on top of the firebox rather than on top of the cab.
Of the first batch of 300 locomotives, most were fitted with vacuum brakes and steam heating, and some of these were also fitted with GWR's Automatic Train Control (ATC) safety system.[i]
However, the 50 locomotives of the 6700 Class, or 67xx class, were not fitted with vacuum brakes, steam heating, or ATC, and were fitted with three link couplings only, and so were limited to shunting duties and some freight working.
The 8750 Class, or 87xx class, were first built in 1933, using an updated design which included an improved cab with a higher roof, rectangular windows and grills (as opposed to the round windows, or "spectacles", of the initial design), and sliding shutters and hinged doors for more protection from the elements. The new style cab was derived from the sister 5400 class, the first of which were built in 1931. Vacuum brakes, steam heating, and ATC were fitted as standard (except for Nos. 6750–79, built between 1946 and 1950, which were fitted with steam brakes and three link couplings only).
The 9700 Class, or 97xx class, pannier tanks were a direct development of the 5700 class. The prototype for the class, No. 8700 (later No. 9700), was a rebuilt 5700 locomotive. They were specifically for working on the Metropolitan/Hammersmith & City lines between Paddington Stations and Smithfield Meat Market. They replaced Metro and 633 class locomotives.
The eleven locomotives in the class had condensing apparatus that fed the exhaust steam back into the water tanks. The tanks themselves were shortened to make room for the external exhaust pipes and were extended down to the footplate in front of the cab to increase their capacity. As condensing the steam heated the water, a reciprocating pump (Weir pump) was fitted as a boiler feedwater pump because standard injectors will not work with hot water. The pumps led to (unsuccessful) tests with these locomotives acting as fire engines during World War II.
To work over the electrified underground lines, the 9700 Class locomotives had a special type of ATC equipment that lifted clear of the centre rail and had tripcock brake valves that matched the London Transport signalling system.
From 1936 to 1942 a number of small changes were introduced to new builds:
- in 1936 a whistle shield was added to the front of the cab to deflect steam away from the cab windows
- also in 1936 pocket steps and extra railings were added to the fireman's side (left side) of the cab to improve access to the bunker
- in 1937 a drawing was issued for fitting shutters and doors to the older, pre-8750 class, locomotives
- in 1938 a larger whistle shield was fitted, which became standard for the larger cabs
- in 1942 a new type of top feed was introduced, with separate clackboxes in a taller cover, and internal delivery pipes rather than trays
All these changes were later applied to locomotives that had been built earlier.
A small number of 5700s were adapted for specific tasks:
- in 1937, 1938 and during World War II thirteen 5700s were fitted with spark arresting chimneys for work on industrial and military sites with significant fire risks[j]
- in 1958 No. 3711 was converted to oil burning by Robert Stephenson and Hawthorns[k]
- in 1946 No. 7722 was fitted with winding gear to work the Pwllyrhebog Colliery incline on the former Taff Vale Railway
- Armstrong Whitworth – 7775–7799 (25)
- W. G. Bagnall – 6700–6724, 8725–8749 (50)
- Beyer, Peacock & Co. – 8700–8724 (25)
- Kerr Stuart - 7700–7724 (25)
- North British – 5700–5749, 7725–7774 (100)
- Yorkshire Engine Co. – 6725–6749 (25)
The size of the class demanded that the 5700 class locomotives were spread across several series of numbers.
- 3600 - 3699
- 3700 - 3799
- 4600 - 4699
- 5700 - 5799
- 6700 - 6779
- 7700 - 7799
- 8700 - 8799
- 9600 - 9682
- 9701 - 9799
Accidents and incidents
- On 7 December 1961, a locomotive of the class was in collision with a freight train at Bodmin General station, Cornwall due to a faulty signal failing to give a clear danger aspect.
Other pannier tank locomotives
There were numerous other classes of pannier tanks built by the GWR. They fundamentally belonged to only two "families" of "large" and "small" designs, excluding some absorbed stock and even a few conversions of tender locos. The two groups were:-
- "Large" group originally featuring saddle tanks (or in a few cases side tanks), 4'6" driving wheels and double frames e.g. 1076 Class or inside frames GWR 645 Class, culminating in the 94xx
- "Small" group originally built at Wolverhampton Works with saddle tanks and driving wheels of 4 ft commencing with the GWR 850 Class and culminating in the BR 16xx
For example within the "small" group, the GWR 5400 Class locomotives were derived from the William Dean -designed GWR 2021 Class (an enlargement of the 850 Class), with larger wheels for higher top speed and fitted with autotrain apparatus ('auto-fitted') for push-pull passenger work. The GWR 6400 Class were similar to the 5400 Class, also being auto-fitted, but having the same size wheels as the 5700. The GWR 7400 Class were very similar to the 6400 Class, but were not auto-fitted and had a higher boiler pressure.
Within the "large" group, the GWR 9400 Class was the post-war updated design of the 8750 variant of the 57xx: heavier and longer, but nominally no more powerful, using the same taper boiler as the GWR 2251 Class.
For a list of classes, see GWR 0-6-0PT.
Withdrawal and mileages
Withdrawal from service with BR started in 1956 and was completed in 1964. Twenty locomotives were sold and continued in use until 1971 (London Transport) and 1975 (National Coal Board).
le Fleming noted that the mileages of those withdrawn between March 1956 and March 1958 ranged "between 500,000 and 556,000". Some other known mileages are shown below.
|3650||Dec 1939||Sep 1963||493,100 mi (793,600 km)|
|3738 ||Sep 1937||Jul 1963||~500,000 mi (800,000 km)|
|4612 ||Feb 1942||Jul 1965||427,707 mi (688,328 km)|
|5764 ||Jun 1929||(Dec 1963)[i]||668,771 mi (1,076,283 km)|
|7714 ||Apr 1930||Jan 1959||520,259 mi (837,276 km)|
|9629 ||Dec 1945||(Sep 1961)[ii]||385,188 mi (619,900 km)|
|9682 ||May 1949||Aug 1965||over 250,000 mi (400,000 km)|
- withdrawn from BR May 1960. Mileage from later LT records.
- Date of last Heavy General Overhaul (H/G). Withdrawn Oct 1964.
Use after British Railways
Thirteen 5700s were bought by London Transport (from 1956 to 1963) and used on the London underground network.
The first locomotive, No. 7711, underwent trials from January to April 1956, first running between Finchley Road and Baker Street. Modifications were needed to the cab for clearance and the tripcock brake valves after problems were found when running in reverse. Curtains were also fitted to the cab to reduce smoke and fumes in tunnels. In May, the 5700s became the standard for engineering trains on London Transport when they bought No. 7711 (for £3,160), decided to buy another (No. 5752), and planned to buy more over the coming years.
They were numbered L89 to L99 and were allocated to the depots at Lillie Bridge (Kensington) and Neasden. Only eleven were running at any one time, the original L90 and L91 were withdrawn for repairs but scrapped instead and replaced by other locomotives which carried the same number.
They replaced older LT steam locomotives on permanent way trains and were never used on normal passenger services. Main line running included trips between depots, to Acton Works and runs out to Croxley Tip, near Watford.
Three of the LT 5700s lasted until the end of steam on London Transport in 1971 and were the last steam locomotives used for regular mainline working in the UK.[l] Three diesel-hydraulic locomotives were bought to carry out the shunting duties from then on.
|LT Number||BR No.||Date Built||Date to LT||Withdrawn by LT||Notes|
|L89||5775||1929||1963||1969||Sold to Keighley and Worth Valley Railway[m]|
|L90 (II)||7760||1930||1961||1971||Sold to Tyseley Steam Centre[n]|
|L92||5786||1930||1958||1969||Sold to Worcester Locomotive Society[o]|
|L94||7752||1930||1959||1971||Sold to Tyseley Steam Centre[n]|
|L95||5764||1929||1960||1971||Sold to Severn Valley Railway[p]|
|L99||7715||1930||1963||1969||Sold to Quainton Railway Society[q]|
National Coal Board
Between 1959 and 1965 the National Coal Board (NCB) bought five 5700s from BR for use at pits in South Wales, continuing a tradition of the GWR selling withdrawn pannier tank locomotives to the NCB. The engines retained their BR numbers. The NCB locomotives did not receive maintenance to match GWR standards and were run into the ground, saving the cost of expensive overhauls.
One of the NCB 5700s, No. 7754, was the last in industrial service, and after working at various collieries was moved to Deep Duffryn Colliery at Mountain Ash in 1970, where an ex-GWR fitter kept it working until 1975 when a loose piston resulted in a blown cylinder cover. No. 7754 could still be seen on shed in 1980. The NCB donated No. 7754 to the National Museum Wales, who placed it on permanent loan to the Llangollen Railway. It is now owned by the Llangollen Railway Trust.
|BR No.||Date Built||Date to NCB||Location||Notes|
|3663||1940||1962||Nine Mile Point||Scrapped 1966|
|7714||1930||1959||Penallta||Sold to Severn Valley Railway[p]|
|7754||1930||1959||Mountain Ash||Donated by NCB to the National Museum Wales|
|9600||1945||1965||Merthyr Vale||Sold to Tyseley Steam Centre.[n]|
No. 3650 was withdraw in 1963 and then sold to P.D. Fuels, a division of Stephenson Clarke Ltd., and was used to move spoil to slag heaps at Gwaen-Caer-Gurwen colliery near Ammanford, Carmarthenshire. It was later bought and restored by members of the Great Western Society and became operational in 2009.
No. 9642 was withdrawn in 1964 and sent to Hayes Scrapyard, near Bridgend. Rather than being scrapped, it was used to shunt other locomotives being scrapped. It was due to be scrapped in 1967, but a last minute intervention resulted in its being bought (1968) and restored by the South Wales Pannier Group, becoming the first of the class to be preserved.
Sixteen 5700 class locomotives have been preserved, of which 8 are currently operational, with 2 of these being certified to run on Network Rail. Of the 12 engines that went to Barry Scrapyard, 5 were saved for preservation and 1 (No. 3612) was bought for spares by the Severn Valley Railway.
As the oldest locomotives were the first to be withdrawn and sold for further use, they form the majority of preserved examples. A number of those bought from London Transport were still in running order and were used on preserved lines with minimal work. Interestingly, No. 5764 (ex-LT L95) was steamed the day it arrived at Bridgnorth on the Severn Valley Railway, being lit-up before it had been removed from the low-loader on which it was delivered.
Several preserved locomotives have run in London Transport (LT) colours but No. 7715/L99 has been consistently so painted. At present, No. 7752/L94 has been painted in LT colours and has now returned to service at Tyseley. No. 5786 has also recently been repainted into London transport guise as L.92 and runs as such in service at the South Devon Railway.
|GWR 5700s in Preservation|
|GWR No.||Image||Date Built||Built by||Current Location /
|3650||1939||Swindon||Didcot Railway Centre - Operational.||Ex-Stephenson Clarke|
|3738||1937||Swindon||Didcot Railway Centre - static display due to firebox repair and a boiler crack||Ex-Barry Scrapyard|
|4612||1942||Swindon||Bodmin and Wenford Railway - Operational.||Ex-Barry Scrapyard|
|5764||1929||Swindon||Severn Valley Railway
– Out of service pending static display.
|5775||1929||Swindon||National Railway Museum Shildon - Static Display.||Ex-LT L89|
|5786||1930||Swindon||South Devon Railway
– Operational as L92.
|7714||1930||Kerr Stuart||Severn Valley Railway
– Undergoing Overhaul.
|7715||1930||Kerr Stuart||Buckinghamshire Railway Centre
- Static Display
|7752||1930||North British Loco||Tyseley - Operational (Main Line Certified) as L94.||Ex-LT L94|
|7754||1930||North British Loco||Llangollen Railway - Undergoing Overhaul.||Ex-NCB|
|7760||1930||North British Loco||Tyseley - For Sale. Awaiting Overhaul.||Ex-LT L90|
– Operational (Main Line Certified).
|9629||1945||Swindon||Pontypool - Undergoing restoration.||Ex-Barry Scrapyard|
|9642||1946||Swindon||Gloucestershire Warwickshire Railway - Undergoing overhaul.||Ex-Hayes Scrapyard|
|9681||1949||Swindon||Dean Forest Railway - Awaiting overhaul.||Ex-Barry Scrapyard|
|9682||1949||Swindon||Chinnor & Princes Risborough - Undergoing overhaul.||Ex-Barry Scrapyard|
No. 5775 on the Keighley and Worth Valley Railway featured in the film The Railway Children painted brown and lettered with GN&SR (Great Northern and Southern Railway). In May 2014, No. 5775 was moved to Locomotion, the National Railway Museum at Shildon, for cosmetic restoration back to the livery used in the film.
No. 5775 also featured in the Full Steam Behind episode of Last of the Summer Wine (series 5), in its LT livery (number L89) but with "LONDON TRANSPORT" replaced with "KWVR" (Keighley and Worth Valley Railway) on the side of the tank.
Bachmann Branchline has made OO gauge models of the 5700 and 8750 classes in various GWR and BR liveries, and also in the liveries of LT, NCB, Stephenson Clarke, and even GNSR (the fictional railway company in The Railway Children).
Just Like The Real Thing make an O gauge kit for the 5700 and 8750 classes.
- GWR 0-6-0PT – list of classes of GWR 0-6-0 pannier tank, including table of preserved locomotives
- LMS Fowler Class 3F - the London, Midland and Scottish Railway's standard shunter
- LNER Class J50 - the London and North Eastern Railway's standard shunter
- 6700-49 had a minimum curve of 4 chains (260 ft; 80 m) (normal) and 3 1⁄2 chains (230 ft; 70 m) (slow), and also an increased axle clearance.
- Axle load: 8750 class – 17 tons 0 cwt (38,100 lb or 17.3 t), 9700 class – 17 tons 4 cwt (38,500 lb or 17.5 t).
- Weight: 8750 class – 49 tons 0 cwt (109,800 lb or 49.8 t), and 9700 class – 50 tons 15 cwt (113,700 lb or 51.6 t).
- Coal capacity: 9700 class – 2 tons 16 cwt (6,300 lb or 2.9 t).
- Water capacity: 9700 class – 1,230 imp gal (5,600 l; 1,480 US gal).
- 6700-79 were built for shunting only and were not fitted with ATC, vacuum braking, and steam heating.
- Le Fleming mentions LNWR DX (943 built) and LMS Class 5 4-6-0 (Stanier) (842 built) among other numerous classes of British steam locomotives. Surprisingly, he does not mention the WD Austerity 2-8-0 (935 built), possibly because all but 3 were transported to mainland Europe after D-Day for use by the British Army, and only 733 of the class later returned to mainline use in the UK.
- Another locomotive (No. 3612) was also retrieved for spares by the Severn Valley Railway.
- Apart from the locomotives built specifically for shunting, the fitting of vacuum brakes, steam heating, and ATC became standard for the class, and was added to earlier locomotives within a few years of building. For locomotives build by outside contractors, the ATC equipment was added on arrival at Swindon.
- The modified chimney was sometimes referred to as a 'Busby' or a 'bird cage'.
- GWR had experimented with converting steam locomotives to oil burning in 1946–50 but the 5700s had not been included.
- Steam locomotives are now often seen on british mainline railways, but only as specials. Ferris also mentions the WT class 2-6-4Ts operated by Northern Ireland Railways as being amongst the last steam locomotives in regular use, but although withdrawn in 1971, they were last steamed in 1970.
- Moved to the railway in January 1970 and within a few months was used in filming for The Railway Children.
- Now operated by Vintage Trains, a charitable trust (previously known as Birmingham Railway Museum Trust). The Trust is the custodian of the Tyseley Collection (held at Tyseley Locomotive Works) which belongs to 7029 Clun Castle Ltd, a registered educational charity.
- Now based at the South Devon Railway.
- Three 5700s were bought by the SVR Pannier Tank Fund: No. 5764, No. 7714, and No. 3612 which was bought for spares and not restored.
- The Quainton Railway Society now operates as the Buckinghamshire Railway Centre.
- le Fleming 1958, pp. E77-78.
- Whitehurst 1973, p. 101.
- le Fleming 1958, p. E77.
- Whitehurst 1973, p. 146.
- le Fleming 1958, p. E78.
- le Fleming 1958, p. E79.
- Jones 2014, p. 43.
- Jones 2014, p. 21.
- Jones 2014, p. 39.
- Jones 2014, p. 10.
- Jones 2014, p. 68.
- Whitehurst 1973, pp. 82-83.
- Jones 2014, p. 139.
- le Fleming 1958, p. E12.
- le Fleming 1958, p. E4.
- Whitehurst 1973, pp. 7-13.
- le Fleming 1958, p. E7.
- Jones 2014, p. 12.
- Holcroft 1957, p. 82.
- Holcroft 1957, pp. 81-82.
- Chacksfield 2002, p. 24.
- Chacksfield 2002, p. 89.
- Holcroft 1957, pp. 127-8.
- le Fleming 1958, p. E10.
- le Fleming 1958, pp. E68,E69.
- Jones 2014, pp. 20-21.
- Chacksfield 2002, p. 87.
- Holcroft 1957, p. 147.
- Nock 1971, p. nn.
- Jones 2014, p. 36.
- Chacksfield 2002, p. 88.
- le Fleming 1958, p. E69.
- Whitehurst 1973, p. 155.
- Jones 2014, p. 44.
- Jones 2014, p. 46.
- Whitehurst 1973, p. 98.
- Whitehurst 1973, pp. 32–34, 41–42, 51–52, 59–60, 67–68, 71–72, 74–76.
- Earnshaw 1993.
- le Fleming 1958, p. E80.
- Jones 2014, p. 140.
- Jones 2014, p. 145.
- Jones 2014, p. 150.
- Jones 2014, p. 151.
- Jones 2014, pp. 165-166.
- P & B Loco Group - 9629's History.
- Jones 2014, p. 186.
- Whitehurst 1973, p. 82.
- Jones 2014, p. 88.
- Ferris 1995, p. 23.
- Casserley 1979, p. 95.
- Jones 2014, p. 89.
- Jones 2014, p. 96.
- Heavyside 1996, p. 7.
- Vintage Trains.
- Jones 2014, p. 156.
- Ferris 1995, p. 29.
- Jones 2014, p. 74.
- Jones 2014, p. 170.
- Jones 2014, p. 76.
- Jones 2014, p. 180.
- Jones 2014, p. 179.
- Jones 2014, p. 183.
- Jones 2014, p. 153–155.
- Heritage Railway, p. 11.
- Jones 2014, p. 187–189.
- Jones 2014, p. 152.
- Whalley 2013a, pp. 8–9.
- Whalley 2013b, pp. 13, 18.
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- Sixsmith, Ian; Derry, Richard (2011). The Pannier Papers No.2 The 57XX Engines 36XX, 37XX, 46XX. Bedford, UK: The Irwell Press. ISBN 978-1-906919-33-7.
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- Sixsmith, Ian; Derry, Richard (2012). The Pannier Papers No.4 The 57XX Engines 87XX, 96XX, 97XX. Bedford, UK: The Irwell Press. ISBN 978-1-906919-48-1.
|Wikimedia Commons has media related to GWR 5700 Class.|
- 5700 Tank Class Introduction
- Guide to GWR Pannier Tank Classes
- Steam Locos in Profile - The GWR 5700 Pannier Tanks - a 15 minute YouTube documentary