British Rail Class 24 facts for kids

Quick facts for kids British Railways Type 2 British Rail Class 24
Class 24, no. 24065 at Motherwell depot, May 1976
Power type	Diesel-electric
Builder	British Railways’ Derby Works, Darlington Works and Crewe Works
Build date	1958–1961
Total production	151
UIC classification	Bo'Bo'
Gauge	4 ft 8 1⁄2 in (1,435 mm) standard gauge
Wheel diameter	3 ft 9 in (1.143 m)
Minimum curve	4.5 chains (91 m)
Wheelbase	36 ft 6 in (11.13 m)
Length	50 ft 6 in (15.39 m)
Width	8 ft 10 in (2.69 m)
Height	12 ft 8 in (3.86 m)
Locomotive weight	Class 24/0: 79 long tons (80.3 t; 88.5 short tons) Class 24/1: 73 long tons (74.2 t; 81.8 short tons)
Fuel capacity	Class 24/0: 546 imp gal (2,480 L; 656 US gal) Class 24/1: 500 imp gal (2,300 L; 600 US gal)
Prime mover	Sulzer 6LDA28
Generator	BTH RTB15656 DC
Traction motors	BTH 137BY, DC, 4 off
Transmission	Diesel electric
Multiple working	★ Blue Star
Power output	Engine: 1,160 hp (865 kW) At rail: 843 hp (629 kW)
Tractive effort	Maximum: 42,000 lbf (186.8 kN) Continuous: 21,300 lbf (94.7 kN)
Train heating	Steam generator
Locomotive brakeforce	38 long tons-force (380 kN)
Train brakes	Vacuum
Axle load class	Class 24/0: RA 7 (6 from 1969) Class 24/1: RA 6 (5 from 1959)
Retired	1967–1980
Preserved	Four (list)

The British Rail Class 24 diesel locomotives, originally known as the British Railways Type 2, were built from 1958 to 1961. One hundred and fifty-one of these locomotives were built at Derby, Crewe and Darlington. The first twenty locomotives were part of the 1955 British Rail modernisation plan. This class was used as the basis for the more powerful Class 25 locomotives.

The final survivor, no. 24081, was withdrawn from Crewe depot in 1980.

Images for kids

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  D5054 at Manchester Exchange with an engineering train, 1968.

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  97201 at Worksop