British Rail Class 25 facts for kids

Quick facts for kids British Rail Class 25
Class 25 locomotive stands on Springs Branch Traction Maintenance Depot at Wigan
Power type	Diesel-electric
Builder	British Railways’ Crewe Works, Darlington Works and Derby Works; Beyer, Peacock & Co.
Build date	1961–1967
Total production	327
Configuration	Bo-Bo
UIC classification	Bo'Bo'
Gauge	4 ft 8 1⁄2 in (1,435 mm)
Wheel diameter	3 ft 9 in (1.143 m)
Minimum curve	4.5 chains (91 m)
Wheelbase	36 ft 6 in (11.125 m)
Length	50 ft 6 in (15.392 m)
Width	9 ft 1 in (2.769 m)
Height	12 ft 8 in (3.861 m)
Locomotive weight	71 long tons (72.1 t) to 76 long tons (77.2 t)
Fuel capacity	500 imp gal (2,300 L; 600 US gal)
Prime mover	Sulzer 6LDA28-B
Transmission	DC generator, DC traction motors
Multiple working	★ Blue Star
Top speed	90 mph (145 km/h)
Power output	Engine: 1,250 hp (932 kW)
Tractive effort	Maximum: 39,000 lbf (173,000 N) to 45,000 lbf (200,000 N)
Train heating	Steam generator
Locomotive brakeforce	38 long tons-force (380 kN)
Train brakes	Vacuum
Career	British Railways
Number	D5151–D5299, D7500–D7677; later 25001–25327
Nicknames	Rats
Axle load class	Route availability 4

The British Rail Class 25 diesel locomotives were originally known as British Railways Type 2. They were nicknamed Rats. 327 locomotives of this type were built between 1961 and 1967.

Images for kids

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  25047 of the 25/1 subclass outside Manchester Victoria in 1980

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  D7585 working as Derby station pilot in May 1965. The livery is BR green with small yellow warning panels.

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  25304 of the 25/3 subclass at Manchester Victoria in 1982.

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  D7612 at Tunbridge Wells West on the Spa Valley Railway

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  D5185 at Eridge on the Spa Valley Railway