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      The British Rail Class 45 or Sulzer Type 4 are diesel locomotives built by British Railways' Derby and Crewe Works between 1960 and 1962. Along with the similar Class 44 and 46 locomotives, they became known as Peaks.


      Technical details




      = Engine

      =
      The engine of the Class 45 was a marine-type, slow-revving diesel, a Sulzer 12LDA28B with a bore of 280 mm (11.024 in) (hence the 28 in the engine designation) and a stroke of 360 mm (14.173 in). This gave 22 litres (1,300 cu in) per cylinder, or 264 litres (16,100 cu in) for the whole engine. The unit was turbocharged and intercooled and gave 2,500 hp (1,900 kW) at 750 rpm. The engine was of the double bank type with two parallel banks of 6 cylinders, geared together to a single output shaft. Six-cylinder versions of the engine were fitted in the Class 25 locos (amongst others) and eight-cylinder versions in Class 33s. Class 45s were the updated versions of the Class 44 locomotives, the latter having a 2,300 hp (1,700 kW) non-intercooled version of the same engine; i.e. the 12LDA28A. The later Class 47 had a modified version of the same engine, a 12LDA28C.


      = Train heating

      =
      When initially put into service, the locomotives were fitted with multi-unit working and steam-heating boilers for passenger service. In the early 1970s, fifty were fitted with electric train supply in place of their steam-heating boilers and assigned to work services on the Midland Main Line from London St Pancras to Nottingham, Derby and Sheffield. These locomotives were renumbered as Class 45/1.


      = Locomotive auxiliary supply

      =
      The Class 45 is unusual in having a 220 volt electrical system for driving auxiliary systems and battery charging. Most British Railways diesels of the same era had 110 volt auxiliaries.


      History



      The Class 45s became the main traction on the Midland Main Line from 1962, and their introduction allowed considerable acceleration of the previous steam-powered service. The Class 45s remained the main source of power on the Midland Main Line up to 1982, when they were relegated to secondary services following introduction of HSTs on the route. From 1986 Class 45s virtually disappeared from the line. From the early 1980s until their withdrawal c. 1988, the class were regular performers on the North Trans-Pennine line working services from Liverpool Lime Street to York, Scarborough or Newcastle via Manchester Victoria, Huddersfield and Leeds. These trains were usually formed of early Mark 2 carriages, of up to seven in a typical train.


      Accidents and incidents


      On 6 December 1963 a freight train hauled by D94 passed at least two stop signals and collided with a goods train which was crossing the line at Stanton Gate railway station under clear signals. The front end of D94 was almost totally destroyed, causing the deaths of the driver and second man.
      On 26 August 1976 locomotive No; 45 149, while hauling a coal train, derailed near Winchcombe due to 'unusual' activity on the line.
      On 16 January 1982, locomotive No. 45 074 was hauling a freight train that was derailed at Chinley, Derbyshire.

      On 4 December 1984, locomotive No. 45 147 was badly damaged in the Eccles rail crash, and subsequently moved to Patricroft where it was cut up in March 1985.
      On 9 March 1986, locomotive No. 45 014 The Cheshire Regiment was one of two light engines that were hit head-on by a passenger train at Chinley due to a signalman's error. One person was killed. Lack of training and a power cut were contributory factors. The locomotive was consequently withdrawn from service and scrapped.
      On 24 April 1988, locomotive No. 45 041 split a set of points and was derailed at Edale, Derbyshire.


      Withdrawal


      The great majority of Class 45s were withdrawn between 1981 and 1988 after class 43 HSTs were introduced to their routes, and the last was withdrawn from service by 1989.


      Fleet details




      = Naming

      =
      26 Class 45s were officially named by BR after various British Army regiments and the Royal Marines. Additionally, several were unofficially named.


      = Fleet list

      =


      Preservation



      Eleven locomotives survive in preservation with examples from both batches. The majority of the preserved engines were built at Crewe Works but two, including the spares donor engine, were built at Derby Works. A summary of these follows:

      45041 – In operational condition at the Nene Valley Railway
      45060 – Undergoing engine overhaul at Barrow Hill Engine Shed
      45105 – Undergoing restoration at Barrow Hill Engine Shed
      45108 – In operational condition on loan at the East Lancashire Railway
      45112 – Stored at Nemesis Rail, Burton upon Trent
      45118 – Under overhaul at Crewe Diesel TMD
      45125 – In operational condition at the Great Central Railway
      45132 – Under overhaul at the Epping Ongar Railway
      45133 – Under overhaul at the Midland Railway – Butterley
      45135 – Under heavy repair at the East Lancashire Railway
      45149 – In operational condition at the Gloucestershire Warwickshire Railway
      A twelfth example, 45015, was also sold into preservation, but not restored. Withdrawn in March 1986 with a seized traction motor, for which repair was not authorised, 45015 was heavily cannibalised for spares to keep other Class 45s working. It remained at Toton, its home shed, until at least 1999. The locomotive was moved to Shackerstone, on the Battlefield Line Railway, in 2002, still with the intention of restoration to mainline standard, despite requiring a replacement engine to be found. In 2010 the host railway gave notice to the locomotive's owner that the still unrestored 45015 needed to move to a new site. Having failed to find a buyer, 45015 was scrapped.


      Model railways


      Mainline Railways introduced OO gauge Class 45s in 1983; D49 The Manchester Regiment and D100 Sherwood Forester in BR green and 45048 The Royal Marines in BR blue.


      References




      Further reading


      Buck, Martin (1988). 'Peaks' - In Retrospect. Pathfinder. ISBN 9780906025703. OCLC 862583032.
      Chalcraft, John (1983). Named Diesel and Electric Locomotives of British Rail Part 4: The Peaks British Rail Class 44, 45 & 46 Diesel Electrics. Rail Photoprints. ISBN 9780906883044. OCLC 16598805.
      Derrick, Kevin (2014). Looking back at Peaks. Strathwood. ISBN 9781905276479.
      Marsden, Colin J.; Fenn, Graham B. (1988). British Rail Main Line Diesel Locomotives. Sparkford: Haynes. pp. 188–195. ISBN 9780860933182. OCLC 17916362.
      Montague, Keith (1978). The Power of the Peaks. OPC. ISBN 9780902888999. OCLC 5196338.
      Morrison, Gavin (2005). The Heyday of the Peaks. Ian Allan. ISBN 9780711030572. OCLC 57575548.
      Preedy, Norman E. (1982). Book of the Peaks. Peter Watts. ISBN 9780906025314. OCLC 810796496.
      Vehicle Diagram Book No. 100 for Main Line Diesel Locomotives (PDF). Derby: British Railways Board. October 1984. pp. 25–26, 37, 106–107 (per pdf) – via Barrowmore MRG.
      Webb, Brian (1978). Sulzer Diesel Locomotives of British Rail. David & Charles. ISBN 0715375148.
      Whiteley, J.S; Morrison, G.W. (1983). Profile of the Peaks. OPC. ISBN 9780860931652. OCLC 10727331.
      Whitehouse, Alan (June 1982). "'Peak' performance". Rail Enthusiast. EMAP National Publications. pp. 22–25. ISSN 0262-561X. OCLC 49957965.
      Bishop, Donald J. (February 1983). "The noble art of 'Peak'-bashing". Rail Enthusiast. EMAP National Publications. pp. 38–41. ISSN 0262-561X. OCLC 49957965.
      Preedy, Norman (April 1983). "Another 'Peak' chapter ends". Rail Enthusiast. EMAP National Publications. p. 47. ISSN 0262-561X. OCLC 49957965.
      Roughley, Malcolm (May 1984). "'Peak' across the Pennines". Rail Enthusiast. EMAP National Publications. pp. 51–54. ISSN 0262-561X. OCLC 49957965.
      "D100 condemned as 45/0s dwindle". Rail Enthusiast. No. 53. EMAP National Publications. February 1986. p. 23. ISSN 0262-561X. OCLC 49957965.


      External links



      www.45133.co.uk

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