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D3/11 sentinels

Class 37s
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The Class 37 Gallery at the Bristol Railway Archive.
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Class 37/0 Details:
Introduced: 1961-65
Engine: English Electric 12 cyl 12CSVT of 1750 b.h.p. at 850 rpm.
Weight: 105 tons
Brake Force: 50 tons
Maximum Tractive Effort: 55500lb
Transmission: Six English Electric axle-hung nose-suspended traction motors
Driving Wheel Diameter: 3'7"
Route Availability: 5
Maximum Speed: 90mph
Coupling Code: Blue Star
37001-119 were built with split box headcodes while the rest were built with central headcodes. Split boxes were removed on refurbishment or after accident damage.
Class 37/3 Details:
Unrefurbished locos fitted with regeared CP7 bogies.
Class 37/4 Details:
Refurbished locos fitted with electric train heat. Main generator replaced by alternator. Regeared CP7 bogies.
Maximum Tractive Effort: 56000lb
Class 37/5 Details:
Refurbished locos. Main generator replaced by alternator. Regeared CP7 bogies.
Class 37/6 Details:
Originally refurbished for Nightstar services. Main generator replaced by alternator, re-geared bogies and UIC jumpers.
Class 37/7 Details:
Refurbished locos. Main generator replaced by alternator. Regeared CP7 bogies. Ballast weights added. Maximum Tractive Effort: 62000lb
Class 37/9 Details:
Refurbished locos. Fitted with Mirrlees MB275T of 1800 b.h.p. at 1000 rpm or Ruston RK270T of 1800 b.h.p at 900 rpm.
Weight: 120 tons
Route Availabilty: 7

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