British Rail Class 08

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Image:D3312 - kings cross - 1963.jpg Image:08910 - carlisle - 1975.jpg Image:08798 - 31-7-04 - Wembley Yard.jpg Image:08804 Didcot Parkway 4Aug 05.JPG Image:British Rail Class 08 Shunter - 08911 - National Railway Museum - York - 2005-10-15.jpg The British Rail Class 08 is a class of diesel locomotive designed for shunting. It was the standard BR diesel-electric shunter, based on the LMS 12033 series (later TOPS Class 11). Production started in 1953 and when it finished in 1962, the class had become the most numerous of all British classes, numbering 1193 in total. A few remain in service today.

1 Overview
2 Design variations
3 CLASS 08/9
4 Technical details
5 In fiction

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Overview

The locomotives were built at the BR Works of Crewe, Darlington, Derby and Doncaster.

The Class became sub-class 08/0, when locomotives from the class were given cut-down cabs for use on the Cwm Mawr Line, and became Class 08/9.

The engine is an English Electric (EE) 6 cylinder, 4-stroke, 6KT. Traction motors are 2 x EE 506 motors with double reduction gear drive. The main generator is an EE 801.

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Design variations

There were variations on the basic design, which were given the following TOPS design codes:

TOPS design code	Electrical system	Max speed	Power	Brakes	Route availability	Notes
08-0AV	90V	20 mph	49.8 te (496 kN)	vacuum	5
08-0BX	110V	20 mph	50.4 te (502 kN)	dual	5
08-0CA	90V	20 mph	49.6 te (494 kN)	air	5
08-0DV	90V	15 mph	49.8 te (496 kN)	vacuum	5
08-0BX	90V	15 mph	50.4 te (502 kN)	dual	5
08-0FA	90V	15 mph	49.6 te (494 kN)	air	5
08-0KX	110V	15 mph	50.4 te (502 kN)	dual	5
08-0LX	110V	15 mph	50.4 te (502 kN)	dual	5	Scharfenberg adapter fitted
08-0MA	110V	15 mph	49.8 te (496 kN)	air	5
08-0NA	90V	15 mph	49.8 te (496 kN)	air	5	fitted with knuckle couplings
08-0PA	90V	15 mph	51 te (508 kN)	air	6	fitted with knuckle couplings
08-0QA	90V	15 mph	51 te (508 kN)	air	6	fitted with knuckle couplings
08-0RA	110V	15 mph	51 te (508 kN)	air	6	fitted with knuckle couplings
08-0SA	110V	15 mph	49 te (488 kN)	air	6

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CLASS 08/9

Class 08/9 locomotives were modified from the standard class by being given headlights and cut-down cabs in which the overall height was reduced to 11’ 10” (3.61 m), for use on the Cwm Mawr line.

08-9AV 90 V electrical system, 15 mph, 49.8 te (496 kN), vacuum brakes
08-9CX 90 V electrical system, 15 mph, 50.4 te (502 kN), dual brakes
08-9DA 90 V electrical system, 15 mph, 49.6 te (494 kN), air brakes

08 991 was converted from 08 203; design code: 08-9AV
08 992 was converted from 08 259; design code: 08-9CX
08 993 was converted from 08 592; design code: 08-9CX
08 994 was converted from 08 462; design code: 08-9DA
08 995 was converted from 08 687; design code: 08-9DA

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Technical details

BR Class 08/0
TOPS numbers	08 001-08 958
Early numbers	13000-13116, 13127-13136, 13167-13365; later: D3000-D3116; D3127-D3136; D3167-D3438; D3454-D3472; D3503-D3611; D3652-D3664; D3672-D3718; D3722-D4048; D4095-D4098; D4115-D4192
Builder	British Railways
Introduced	1953-62
Wheel Arrangement	0-6-0
Weight	49.6 to 51 long tons	50.4 to 51.8 t
Height	12 ft 8 5/8 in	3.877 m
Width	8 ft 6 in	2.59 m
Length	29 ft 3 in	8.92 m
Wheel Dia.	4 ft 6 in	1.37 m
Wheel Base	5 ft 9 in + 5 ft 9 in	1.75 + 1.75 m
Minimum radius
Maximum speed	15 to 20 mph	24 to 32 km/h
Engine output	350 hp	260 kW
Max. Tractive Effort	35,000 lbf	156 kN
Cont. Tractive Effort	11,100 lbf at 8.8 mph	49 kN at 14 km/h
Brake type	Vacuum
Brake force	19 te	189 kN
Route availability	5 (6 see notes)
Fuel Tank	668 imp gal	3.04 m³
Heating type	None