British Rail Class 76

"Class 76" redirects here. For DRG Class 76, see Prussian T 10.

British Rail Class 76
Locomotive no. E26055 at Sheffield Victoria in 1969.
Type and origin Power type Electric Builder LNER Doncaster Works (prototype) BR Gorton Works Serial number Doncaster 1914 Gorton 1008–1064 Build date 1941 (prototype), 1950–1953 Total produced 58
Specifications Configuration: ​  • AAR B-B  • UIC Bo′Bo′  • Commonwealth Bo+Bo Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Wheel diameter 4 ft 2 in (1.270 m) Length 50 ft 4 in (15.34 m) Loco weight 87 long tons 18 hundredweight (89.3 t; 98.4 short tons) Electric system/s 1500V DC Catenary Current pickup(s) Pantograph, 2 off Traction motors Metropolitan-Vickers 186, 4 off Transmission Electric MU working Equipped Train heating Steam generator (14 locomotives) Loco brake Vacuum and Regenerative Brake Train brakes Vacuum, some later Dual Vacuum / Air Safety systems AWS
Performance figures Maximum speed 65 mph (105 km/h) Power output Continuous: 1,300 hp (969 kW) One-hour: 1,868 hp (1,393 kW) Tractive effort 45,000 lbf (200 kN) Brakeforce 72 long tons-force (717 kN)
Career Operators LNER (prototype) British Railways Numbers 26000–26055; later E26000–26057; later 76001–76057 Axle load class LNER: RA 9 BR: RA 8 Locale Manchester–Sheffield–Wath line First run 1947 (prototype) Withdrawn 1970 (prototype), 1981 Scrapped 1972 (prototype), 1981-83 Current owner National Railway Museum Disposition E26020 preserved, remainder scrapped
A cabside from 76039 Hector and a door from 76051 are also preserved

The British Rail Class 76, also known as Class EM1 (Electric Mixed-Traffic 1), is a class of 1.5 kV DC, Bo+Bo electric locomotive designed for use on the now-closed Woodhead Line in northern England.

Tommy — the prototype

Prototype LNER 6000 Tommy on loan in the Netherlands, hauling a freight train in 1949.

The prototype, LNER No. 6701, was completed at Doncaster Works in 1941 to a design by Sir Nigel Gresley, but electrification of the Woodhead Route, together with construction of 69 similar units, was delayed by the Second World War. It was tested on the few sections of 1500 V DC lines owned by the LNER, but had not worked any great distance by 1947 when it was loaned to Dutch Railways to help with their post-war shortage of locomotives. In September 1945, the LNER assigned it the classification EM1; previously, it had been unclassified.

The prototype locomotive, renumbered 6000 in June 1946, remained on Dutch Railways until 1952 when the Woodhead electrification was complete. While in the Netherlands, it gained the name Tommy after the nickname given to British soldiers and ran for the rest of its working life with a nameplate, which included an explanation of the origin: "So named by drivers of the Netherlands State Railway to whom this locomotive was loaned 1947-1952." It was renumbered to 26000 following the formation of British Railways.

When new, the locomotive had Westinghouse air brakes and dual air and vacuum brakes were provided for the train. For operations in the Netherlands, the vacuum brake equipment was disconnected. When returned to Britain, the vacuum brake was restored but the air brake for the train was removed.

26000 Tommy was used in everyday service, alongside the other EM1 locomotives equipped with train heating boilers. It was withdrawn in March 1970 and scrapped at Crewe two years later, when passenger services were withdrawn over the Woodhead route and several locomotives became surplus to requirements.

The time in the Netherlands had shown that the design did not ride well at high speed, due to the bogie design. The buffers and couplings were mounted on the bogies which were then linked together by a drawbar, a feature intended to remove stress from the superstructure. It was also felt that the cabs were too small with poor visibility.

Production locomotives

Two Class EM1 locomotives at Penistone in 1954

Between 1950 and 1953, a further 57 locomotives were built at Gorton locomotive works, Manchester, to a modified design; these were also classified EM1. There were also to have been 24 built at Darlington Works, but these were cancelled. Electrical equipment was supplied by Metropolitan-Vickers, who completed the final assembly of the locomotives at Dukinfield Works. They were later reclassified as Class 76, under the TOPS classification scheme introduced on 28 March 1968.

The locomotives were fitted with twin diamond-shaped pantographs. At certain points on the Woodhead Line, notably in the vicinity of steam locomotive water-columns, the electric overhead lines were as high as 20 feet above the tracks. The pantographs had to stretch to almost their full height to reach the wires at some points, as BR practice utilised both raised in normal Woodhead operation in order to maximise current collection under any weather condition.

Although mainly intended for freight working, the locomotives also regularly worked Woodhead Line passenger services – especially after the sale of the Class 77 locomotives to the Netherlands Railways in 1968. Fourteen locomotives (26020, 26046–26057) were fitted with Bastian & Allen steam heating apparatus. Thirteen of these gained classical Greek names; these were removed in 1970, after the discontinuance of passenger services in January of that year.

Named Class 76 locomotives

Loco	Name	Named
26046	Archimedes	May 1959
26047	Diomedes	September 1960
26048	Hector	March 1960
26049	Jason	August 1960
26050	Stentor	August 1960
26051	Mentor	June 1959
26052	Nestor	August 1961
26053	Perseus	October 1960
26054	Pluto	April 1961
26055	Prometheus	June 1959
26056	Triton	July 1959
26057	Ulysses	April 1960

Brief stay in Essex

An EM1 under trial in Essex in 1950

The first section of the Manchester to Sheffield Woodhead route, between Dunford Bridge and Wath, was not electrified until 4 February 1952. The lines between London Liverpool Street and Shenfield had already been electrified in September 1949, using the same 1500 V DC system. On 27 October 1950, the first two locomotives to be completed, nos. 26001 and 26002, were sent to Ilford depot in Essex for trials; these were joined by 26003–26010 in early 1951. The trials involved a variety of trains, passenger and freight, including tests of the regenerative braking system on Brentwood bank, which has a gradient of 1:103 (0.97%). In June 1951, the ten locomotives were sent north to Wath, where the overhead lines had recently been energised, for further trials.

Brakes and controls

The locomotives were fitted with air brakes and regenerative braking; the latter, which could only be used at speeds between 16 and 55 mph (26 and 89 km/h), caused current to be fed back into the wires during the long descents on both sides of the Woodhead Tunnel and so assisting any train which was ascending at the time. Rheostatic braking was also fitted several years later as an additional safety precaution; this was effective below 20 mph (32 km/h). Train brakes were operated by vacuum. From November 1968, thirty of the locomotives were modified for multiple unit (M.U.) control. This became particularly important from January 1970 with the introduction of Merry-Go-Round coal trains from South Yorkshire to Fiddlers Ferry power station near Widnes, operated by two Class 76s (and banked by two extra locomotives up the Worsborough incline between Wombwell and Silkstone). Such trains became the mainstay of the Woodhead Line in the 1970s. Locomotives fitted with M.U. control were also given train air brakes; the last nine conversions had their train vacuum brakes removed at the same time. A Clearcall intercom system was fitted, allowing communication between the drivers of the leading pair and the banking pair of locomotives via the overhead line. An early version of this system had been tried on six of the locomotives in the late 1950s, but had been abandoned as unsatisfactory following tests concluding 26 May 1960. Beyond the Woodhead Line, the trains to Fiddlers Ferry were diesel-hauled west of Manchester.

Liveries

Class 76s at Reddish depot in 1981, shortly before their withdrawal

As delivered, the locomotives were painted black. From the late 1950s onwards, Brunswick green was adopted, with small yellow warning panels on the cab ends. From the late 1960s and until withdrawal, the Class 76s started to appear in British Rail monastral blue with yellow cab ends.

Withdrawal

The disposition of the Class 76 was inextricably tied to the fate of the Woodhead Line. The reduction of the freight traffic on the line, along with the ending of passenger services, resulted in the early withdrawal of several locomotives.

By the late 1970s, the locomotives were amongst the oldest in service and yet one of the most reliable classes, on account of robust design on British Rail; their replacement would ultimately become necessary. However, in July 1981, the closure of the Woodhead Line, between Hadfield in the west and Penistone in the east, resulted in the withdrawal of the entire fleet. The final service was operated in the early hours of 18 July 1981 by 76006 and 76014, hauling freight to Manchester.

The class had served well, having been built to a sound design and well-maintained by the maintenance teams of Reddish and Wath. Most were still entirely serviceable when withdrawn. However, the Netherlands Railways were interested in their purchase for their heavy freight trains mainly from the North Sea Europoort inland, following a good service record of the prototype 6000 Tommy.

Controversy regarding the closure of the Woodhead Line, BR and government policies, plus BR's intention to avoid embarrassment regarding a sale for further use (thus discrediting their claims of expired working life from their traction policies, as had happened with the sale of the Class 77s) as well the greater age of the Class 76s compared with the Class 77s back in 1968, ultimately cancelled the sale. Accordingly, the remaining locomotives were scrapped, many at the yards of Booths of Rotherham, apart from a single preserved example now in the National Railway Museum in York.

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  The drivers controls of a Class 76
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  Controls and gauges in a Class 76 cab
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  Coupling between bogies on a Class 76

Preservation

One locomotive has been preserved by the National Railway Museum in York; no. 26020, later 76020, was specially chosen because it was built with stainless steel handrails and had been exhibited at the Festival of Britain. Later, it was the locomotive that pulled the opening day train through the Woodhead Tunnel. It retains the stainless steel handrails, although they are currently painted over.

One cab from another locomotive, 76039 Hector, which was formerly displayed at the Science and Industry Museum in Manchester, is now at the South Yorkshire Transport Museum in Aldwarke, Rotherham.

A complete cabside and a driver's door from 76051 Mentor are preserved, in their original condition, at Barrow Hill Roundhouse, near Chesterfield.

• 
  26020 at the National Railway Museum in York
• 
  A cab of 76039 at the Science and Industry Museum in Manchester
• 
  Cabside and a door from 76051 at Barrow Hill, near Chesterfield

Models

Trix Twin Railway produced an H0 scale model of E26010 in black livery in 1959 and in green livery in 1960.

Heljan produces 00 scale models of E26051, in BR Green with half yellow panels, and 76014 in BR Blue.

Class 76 is being made as a kit and a ready-to-run model in OO gauge by Silver Fox Models.

See also

• British Rail Class 77
• New South Wales 46 class locomotive

References

Sources

• Boddy, M.G.; Fry, E.V.; Hennigan, W.; Hoole, Ken; Mallaband, Peter; Neve, E.; Price, J.H.; Proud, P.; Yeadon, W.B. (April 1990). Fry, E.V. (ed.). Locomotives of the L.N.E.R., part 10B: Railcars and Electric Stock. Lincoln: RCTS. ISBN 0-901115-66-5.
• Strickland, David C. (September 1983). Locomotive Directory: Every Single One There Has Ever Been. Camberley: Diesel and Electric Group. ISBN 978-0-906375-10-5. OCLC 16601890. OL 27959920M. Wikidata Q105978499.
• BR Main Line Gradient Profiles: The Age of Steam. Hersham: Ian Allan. January 2003 [1966]. ISBN 0-7110-0875-2. 0301/A.
• Vickers, R.L. (1986). DC Electric Trains and Locomotives in the British Isles. Newton Abbot: David and Charles. ISBN 0715386743. OCLC 839555538.

Further reading

• Hooper, John (2014). EM1 & EM2: An Illustrated Historical Review of the Manchester, Sheffield, Wath, Electric Locomotives - 76s & 77s. Book Law Publications. ISBN 9781909625198. OCLC 922549032.
• McManus, Michael. Ultimate Allocations, British Railways Locomotives 1948 - 1968. Wirral. Michael McManus.
• Bellass, Eddie (May 1983). "Reddish convoys roll". Rail Enthusiast. EMAP National Publications. p. 17. ISSN 0262-561X. OCLC 49957965.
• Clough, David N. (June 1983). "The dream that faded". Rail Enthusiast. EMAP National Publications. pp. 30–35. ISSN 0262-561X. OCLC 49957965.
• Green-Hughes, Evan (March 2012). "The British Rail EM1 electrics". Hornby Magazine. No. 57. Hersham: Ian Allan Publishing. pp. 88–91. ISSN 1753-2469. OCLC 226087101.

External links

• EM1s: The Locomotives The Woodhead Site
• The LNER Electric Bo-Bo Class EM1 (BR Class 76) Locomotives LNER Encyclopedia
• Electric Locomotive Equipment for the Manchester-Sheffield-Wath Line - British Railways Railways Archive