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IntroductionThe Class 37s are 1750hp diesel locomotives and were built by English Electric between 1960 and 1965.
Class 37s were first allocated to Scottish Region depots in 1966 and for the next 14 years were mostly used on freight trains in the Central belt. However, in the early 1970s, class 37s were occasionally used as substitutes for class 27s on the Edinburgh - Glasgow Push-pull service; air brake fitted locomotives being in short supply. During the early 1980s steam heat fitted examples replaced class 27s and class 26s on passenger trains on the West Highland and Far North Lines.
As part of the general refurbishment program in the mid 1980s, thirty-one class members were additionally equipped with Electric Train Heating (ETH) equipment and renumbered in the 37/4 sub-class. This facilitated the end of steam heating, and brought to an end the use of ETHELs on the Fort William sleeper.
The 37s were largely replaced on the West Highland and Far North Lines by class 156 DMUs in 1989, but continued to see use on Summer services into the mid 1990s, when they also featured on Inverness - Edinburgh / Aberdeen routes. From 1992 to 1995 pairs of class 37s (with a generator coach for ETH) were used on the Intercity Sleeper trains north of Edinburgh to Inverness and Aberdeen.
At privatisation of BR, the majority of the Class 37 fleet passed to EWS, including all the Scottish based locos, then concentrated at Motherwell depot. The introduction by EWS of class 66 locomotives meant a drastic reduction in the requirement for class 37s on freight and engineers trains. Class 37/4s continued to haul the Fort William portion of the Caledonian sleepers until replaced by class 67 locomotives in 2006. Today class 37's are mainly operated by Direct Rail services and West Coast Railway company with a few on preserved lines.
DRS Class 37, 37229, pauses at Stirling with a railtour for Inverness. Photo by Ewan Tait
DRS Class 37s make regular trips to Scotland on the Nuclear flask trains to Hunterston and Torness but these duties can also be covered by Class 66s or Class 20s.
LiveriesDR: Deep Blue with Light Blue or Dark Grey roof & DRS branding
DZ: Deep Blue with Large Turquoise bodyside panel and Green DRS Compass logo branding
|37401||BR Blue Logo||XHAC||Operational|
|37402||BR Blue Logo||XHAC||Operational|
|37403||BR Blue Logo||XHAC||Operational - on long term loan from Bo'ness|
|37407||BR Blue Logo||XHSS||Under overhaul at Loram Derby|
|37409||DZ||XHSS||Lord Hinton||Stored at Loram Derby|
|37419||DZ||XHAC||Carl Haviland 1954-2012||Operational|
|37423||DX||XHAC||Spirit of the Lakes||Operational|
|37424||BR Blue Logo||XHAC||Operational|
|37425||DZ||XHAC||Sir Robert McAlpine/Concrete Bob||Operational|
|37603||DZ||XHSS||Stored at Loram Derby|
|37604||DZ||XHSS||Stored at Loram Derby|
|37703||DX||XHHP||Stored at the Bo'ness & Kinneil Railway|
West Coast RailwaysWCR operate a small number of Class 37 locomotives
LiveriesWCR:West Coast Railway Company - All over Maroon with Yellow ends and WCRC branding.
Pool codesAWCA:West Coast railway company operational diesel locos
AWCX:West Coast railway company non operational diesel locos
A regular duty in recent years has been as second locomotive on the Royal Scotsman Western tour.
The locomotives also see use on charter trains, particularly on routes not cleared for class 47s, such as Crianlarich to Oban.
In 2014, Colas Rail purchased a number of class 37s from preservation. The following locos currently in service/under repairs are:
37025 (on loan from the Bo'ness and kinneil railway), 37057, 37099, 37116, 37175, 37219, 37254, 37421
DBSDB Schenker (formerly EWS) retained a small number of locomotives for use on engineering and charter trains to Oban, Mallaig, and Kyle where other DBS locomotives where not permitted to operate due to low Route Availability.
They also seen use during the winter months on Snow Plough duties out-based at Inverness and Aberdeen, but reliability during 2009/10 was a major problem.
The remaining operational locomotives were based at Toton, and when required in Scotland were usually moved north 'dead in train' on regular freight trains.
As of 2011, DBS no longer own any 37/4s. they are now with DRS.
37406 passes Barry Links with 6A30 Mossend to Aberdeen on 24th August 2006. Photo by Jim Ramsay
At the start of 2008 DB Schenker won a contract to move potatoes from Elgin to Laurencekirk, this train has run twice so far and both times it has produced a class 37
37422 pauses at Aberdeen whilst working 6A67 0955 Elgin to Laurencekirk tattie train on the 3rd March 2008. Photo by Bruce Kitchener
PreservationScotland plays host to several preserved Class 37s.
37025 Inverness TMD is located at the Bo'ness & Kinneil Railway and has recently undergone restoration. The locomotive made its first passenger runs in preservation at the Bo'ness Diesel Gala on Saturday 29th September 2007
37097 is located at the Caledonian Railway (Brechin). It has been operational since 2006 and recently received a repaint into BR blue. It was named Old Fettercairn at the CR's 'Sulzerfest' diesel gala on the 6th of May 2007 - the name comes from a local distillery's brand of whisky. The Fettercairn distillery provided sponsorship for the restoration of the loco.
37175 is located at the Bo'ness & Kinneil Railway and after being purchased from EWS (now DB Schenker) in 2006 has recently been made operational. The locomotive deputised for the unavailable 37025 at the Keighley & Worth Valley Diesel Gala in June 2007, making its first passenger runs in preservation. It then moved to the East Lancs Railway for three months and arrived at Bo'ness in September 2007 in readiness for the diesel gala. It is now a resident loco at Bo'ness and is currently undergoing a full power unit overhaul and return to mainline certification. 37175 has now been sold to Colas Rail in 2014.
37175 ex-works 9th February 2009 » After almost a year of bodywork repairs 37175 was finally outshopped in a fresh coat of BR Blue at Boness on 9th February 2009. The loco was last seen in this Eastfield livery in 1985 prior to it being repainted into large logo. Photo by Matt Stoddon