RailPicsGB | Class 37
BR mixed traffic type 3 locos built designed by English Electric at Vulcan Foundry and Robert Stevenson and Hawthorns at Darlington between 1960 and 1965.
Originally numbered D6700-D6999 and D6600-D6608, renumbered into the TOPS series, originally in one block as 37001 to 37309.
Modifications and rebuilding saw the following sub classes come into use.
Class 37/3 (37310 to 37326) 1986 to 1989, 12 locos allocated to Motherwell with strengthened couplings and modified brake blocks for Ravenscraig workings.
Class 37/3 (37330 to 37384) Locos modified and renumbered from 1994 with CP7 bogies and additional fuel capacity.
Class 37/4 (37401-37431) Locos modified and renumbered from 1984 with ETH fitted, CP7 bogies and main generator replaced with an alternator.
Class 37/5 (37501 to 37521, 37667 to 37699) Refurbished examples from 1986, CP7 bogies and main generator replaced with an alternator.
Class 37/6 (37601 to 37612) Class 37/5 modified for the abortive Nightstar Project from 1996.
Class 37/7 (37701 to 37719, 37796 to 37803, 37883 to 37899) Refurbished examples from 1986, CP7 bogies and main generator replaced with an alternator, ballast weights also fitted for extra adhesion when working heavy freight trains.
Class 37/9 (37901 to 37906) Refurbished examples from 1986, fitted as testbeds for Mirrlees or Ruston engines together with additional ballast weights.
Most examples now withdrawn and scrapped with a small number in use with Colas, DRS and West Coast Railway Company with more than 30 preserved.

37009

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37009

37010

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37010

37012

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37012

37013

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37013

37021

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37021

37023

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37023

37025

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37025

37026

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37026

37027

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37027

37043

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37043

37046

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37046

37055

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37055

37057

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37057

37058

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37058

37066

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37066

37075

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37075

37083

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37083

37086

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37086

37092

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37092

37095

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37095

37099

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37099

37104

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37104

37108

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37108

37109

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37109

37110

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37110

37116

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37116

37131

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37131

37142

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37142

37144

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37144

37150

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37150

37156

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37156

37158

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37158

37162

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37162

37170

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37170

37175

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37175

37184

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37184

37185

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37185

37191

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37191

37197

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37197

37216

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37216

37219

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37219

37222

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37222

37223

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37223

37230

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37230

37235

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37235

37242

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37242

37248

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37248

37251

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37251

37254

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37254

37255

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37255

37274

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37274

37278

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37278

37283

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37283

37298

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37298

37308

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37308

37331

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37331

37332

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37332

37340

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37340

37344

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37344

37350

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37350

37351

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37351

37358

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37358

37359

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37359

37372

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37372

37376

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37376

37377

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37377

37380

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37380

37383

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37383

37402

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37402

37403

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37403

37404

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37404

37405

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37405

37408

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37408

37411

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37411

37413

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37413

37416

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37416

37417

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37417

37418

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37418

37421

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37421

37422

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37422

37427

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37427

37429

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37429

37431

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37431

37505

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37505

37508

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37508

37511

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37511

37513

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37513

37515

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37515

37516

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37516

37519

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37519

37520

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37520

37521

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37521

37602

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37602

37610

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37610

37611

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37611

37668

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37668

37672

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37672

37676

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37676

37677

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37677

37683

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37683

37684

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37684

37685

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37685

37686

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37686

37688

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37688

37689

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37689

37695

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37695

37697

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37697

37698

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37698

37706

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37706

37707

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37707

37708

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37708

37710

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37710

37711

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37711

37714

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37714

37715

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37715

37718

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37718

37719

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37719

37797

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37797

37798

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37798

37803

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37803

37883

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37883

37884

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37884

37885

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37885

37886

1 photos
37886

37888

1 photos
37888

37890

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37890

37892

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37892

37893

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37893

37897

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37897

37901

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37901

37902

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37902

Unidentified Class 37

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Unidentified Class 37