Class 37
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Introduction
The Class 37s are a mixed freight and passenger locomotive design and were built between 1960 and 1965. These locos were used all over Scotland on freight duties and were once the mainstay of passenger traction on the West Highland and Far North lines. They were also noteworthy performers on the Highland mainline and between Aberdeen and Inverness until being replaced by sprinters in the 1990s. As part of the general refurbishment program in the mid 1980s, thirty class members were additionally equipped with Electric Train Heating (ETH) equipment and renumbered in the 37/4 sub-class. These locomotives are now owned by DB Schenker who operate a small, constantly changing pool of this sub class - though many more are held in 'warm storage' and could be reinstated at short notice.
The last regular Class 37 passenger workings in Scotland were the Fort William to Edinburgh and return Caledonian Sleeper services. These services gained a large following within the enthusiast community. These services were turned over to the more reliable and economical Class 67s in 2006 - though there has been recent concern relating to problems with the newer traction's bogies and Class 37s have continued to be substituted for Class 67s on all three portions of the sleeper services.
EWS
Class 37s still see use with DB Schenker and can be seen on anything from engineering trains to substituting for failed class 67s on the Caledonian Sleeper services. The Edinburgh bnliner used to produce a class 37 but with the 5 of them mostly based down south and only coming up for specials anything in Millerhill tends to be used. They make regular trips Dead in Train (DIT) between Scotland and England and between England and Scotland for working specials and other duties.

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
Fleet List
WKBN - Network Class 37 (RETB fitted) Allocated to Toton TMD (TO)
WFMU - WFMU Fleet Management Unit Non-sector Allocated Locos Allocated to Crewe and Toton
WBSN - Sandite and RHTT Pool
WNXX - DB Schenker Stored
Below is a table of the current active DB Schenker class 37's, Just because the loco is in the pool WFMU it doesn't mean that it is stored.
| Number | Livery | Pool | Name | Status / Location |
| 37401 | EWS Red and Gold (Basic) | WKBN | Operational | |
| 37402 | Two tone Grey | WNXX | Bont Y Bermo | Stored at Toton. (Being looked at, for return to service) |
| 37410 | EWS Red and Gold | WFMU | Aluminium 100 | Part of Fleet Management Unit. At Stoke. |
| 37411 | BR Green | WNTS | Caerphilly Castle / Castell Caerffili | Tactical Stored at Eastleigh (Being prepared for return to service) |
| 37419 | DB Red | WNTS | Tactical Stored at Doncaster. | |
| 37422 | EWS Red and Gold | WNTS | Cardiff Canton | Tactical Stored at Toton (expected to return to service in October 09) |
| 37425 | BR large Logo Blue and Yellow | WKBN | Pride of the Valleys / Balchder y Cymoedd | Operational |
| 37521 | EWS Red and Gold | WNTS | Tactical Stored at Doncaster. (Being prepared for return to service) | |
| 37669 | EWS Red and Gold | WNTS | Tactical Stored at Toton (Being prepared for return to service) | |
| 37670 | DB Red | WNTS | St Blazey T&RS Depot | Tactical Stored at Warrington |
DRS

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.
Fleet List
Liveries
DR: Deep Blue with Light Blue or Dark Grey roof & DRS brandingDZ: Deep Blue with Large Turquoise bodyside panel and Green DRS Compass logo branding
| Number | Livery | Pool | Name | Status |
| 37038 | DR | XHNC | Operational | |
| 37059 | DZ | XHNC | Operational | |
| 37069 | DZ | XHNC | Operational | |
| 37087 | DR | XHNC | Keighley and Worth Valley Railway 40th Anniversary 1968 - 2008 | Operational |
| 37194 | DZ | XHNC | Operational | |
| 37197 | DZ | XHHP | Stored at Brush Loughborough | |
| 37218 | DZ | XHNC | Operational | |
| 37229 | DZ | XHNC | Jonty Jarvis 8-12-1998 to 18-3-2005 | Operational |
| 37259 | DZ | XHNC | Operational | |
| 37261 | DR | XHSS | Stored serviceable at Eastleigh | |
| 37423 | DZ | XHNC | Spirit of thre Lakes | Operational |
| 37510 | DZ | XHNC | Operational | |
| 37601 | DZ | XHNC | Opeational | |
| 37602 | DZ | XHNC | Operational | |
| 37603 | DZ | XHNC | Operational | |
| 37604 | DZ | XHNC | Operational | |
| 37605 | DR | XHSS | Stored serviceable at Eastleigh | |
| 37606 | DR | XHSS | Stored serviceable at Eastleigh | |
| 37607 | DR | XHNC | Operational | |
| 37608 | DZ | XHNC | Operational | |
| 37609 | DR | XHNC | Operational | |
| 37610 | DZ | XHNC | T.S. (Ted) Cassady 14.5.61 - 6.4.08 | Operational |
| 37611 | DZ | XHNC | Operational | |
| 37612 | DR | XHSS | Stored serviceable at Eastleigh | |
| 37667 | DZ | XHNC | Operational | |
| 37682 | DZ | XHNC | Operational | |
| 37683 | DZ | XHHP | Under overhaul at Barrow Hill | |
| 37688 | DZ | XHNC | Kingmoor TMD | Operational |
Preservation
Scotland plays host to three 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 ex-works 9th February 2009 ยป 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