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Class 37

Type 3

Engine: - English Electric Twelve Cylinder 12CSVT (1750hp) except 37901 - Mirrlees 6 Cylinder MB275T (1800hp), 37905/6 - Ruston 6 Cylinder RK270T (1800hp)
Main Generator: Alternator: 37/0 - English Electric
37/4, 37/5, 37/
7 & 37/9 - Brush
Traction Motors: English Electric
Wheel Arrangement: Co-Co
Total Built: 309 (1960-66 at Vulcan Foundry & RSH)
Total : 48

The only English Electric type 3 and could be found all over the network working all types of train. 309 of the class were introduced between 1961 and 1965.  The class underwent a refurbishment program during the mid 1980's with 31 receiving ETH equipment to facilitate the replacement of steam heated trains in Scotland and others having various modifications for freight work. Many survive today in service with the various mainline rail companies with some even working in Spain and France, however most of the un-refurbished locos have been taken out of service. 
37003 37009 37023 37025 37032 37037
37075 37097 37099 37108 37109 37116
37119 37142 37146 37152 37159 37175
37188 37190 37207 37215 37216 37219
37227 37240 37248 37250 37254 37255
37263 37264 37275 37294 37308 37403
37407 37413 37418 37421 37424 37518
37674 37679 37893 37901 37905  37906