Manufacturer catalogue image - please note that pre-release images may be CAD renders or CGI/AI images rather than photographs
Prototype Eras
Era 9 (1995 to 2004) Initial Privatisation
Era 10 (2005 to 2015) Rebuilding of the Railways
Era 11 (2016 to 2026) The Last Days of Privatisation
Entering service as the English Electric Type 3, the British Rail Class 37 diesel locomotives were built at the Vulcan Foundry in Newton-le-Willows in a Co-Co configuration, based on locomotive designs for export markets. Built to undertake both freight and passenger work across all BR sectors, these engines proved highly reliable and, after overhaul, many survived in service across the network into the 1990s.
British Rail first placed an order for forty-two Class 37 locomotives in January 1959, the first of which was delivered in November 1960, entering service on 2 December with the last of this original batch complete by mid-1962, by which time subsequent orders had been placed. The last of the 309 locomotives built was delivered to the Western Region on 9 November 1965, originally numbered in the range D6700-D6999 and D6600-D6608.
Many Class 37 Locomotives were refurbished in the 1980s, extending their life. As a result, the Class 37 remains in service to this day as one of the longest serving classes on British railways. Second-hand locomotives have been exported to railways in France and Spain whilst in the UK many locomotives no longer required to work have been preserved.
Network Rail possesses 5 Class 37 locomotives. One of these, No. 37217, is in storage whilst the other four have undergone extensive refurbishment. The refurbished locomotives have been reclassified Class 97/3, with the Class 97 designation reserved for departmental locomotives under the TOPS system. These four were used by Network rail as part of the European Rail Traffic Management System (ERTMS) trial project on the Cambrian Line. The class was chosen because of its original fitment with both air and vacuum braking, a feature which will allow them to pull both modern freight trains as well as steam specials.

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* Class names often change over the lifespan of a locomotive, so this is not necessarily the class name used by the operator in the period modelled.
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Hornby
R30041TTS
RailRoad Plus Colas Rail, Class 37, Co-Co, 37421 - Era 11
Hornby
R30047
RailRoad Plus ROG, Class 37, Co-Co, 37884 ‘Cepheus’ - Era 11
Hornby
R3914
Network Rail, Class 37, Co-Co, 97304 'John Tiley' - Era 11
Hornby
R30185
RailRoad Plus BR, Class 37, Co-Co, 37116 'Comet'- Era 8
Hornby
R30188
RailRoad Plus Loadhaul, Class 37, Co-Co, 37710 - Era 8
Hornby
R30436
RailRoad - Loram - Class 37 - 'An Comunn Gaidhealach' 37418
Hornby
R30435TXS
RailRoad: BR - Class 37 - '37093' Police Livery (DCC Sound Fitted)
Hornby
R30437TXS
RailRoad - DRS - Class 37 - 'Carl Haviland' 37419 (DCC Sound Fitted)
Hornby
R30436TXS
RailRoad - Loram - Class 37 - 'An Comunn Gaidhealach' 37418 (DCC Sound Fitted)
Hornby
R30437
RailRoad - DRS - Class 37 - 'Carl Haviland' 37419
Hornby
R30545
RailRoad: British Steel - Class 37 - 'Teesside Steelmaster' 37501
Hornby
R30544
RailRoad: Rail Services - Class 37 - 'Pegasus' 37422
Hornby
R30544TXS
RailRoad: Rail Services - Class 37 - 'Pegasus' 37422 (DCC Sound Fitted)
Hornby
R30545TXS
RailRoad: British Steel - Class 37 - 'Teesside Steelmaster' 37501 (DCC Sound Fitted)
Hornby
R30180
RailRoad Plus BR InterCity, Class 37, Co-Co, 37251 'The Northern Lights' - Era 8
Hornby
R3583TTS
Class 37/0 37040 in Railfreight triple grey - Railroad Range - TTS Sound fitted
Hornby
R3289TTS
Class 97 97301 in Network Rail livery with TTS Sound - Railroad range
Hornby
R2775
Class 37 37414 in Regional Railways livery - Railroad Range