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British Rail Class 13 facts for kids

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British Rail Class 13
Power type Diesel-electric
Builder British Railways’ Darlington Works (builder and rebuilder)
Build date 1965 (rebuilt)
Total production 3
Configuration 0-6-0+0-6-0
UIC classification C+C
Gauge 4 ft 8 12 in (1,435 mm)
Wheel diameter 4 ft 6 in (1.372 m)
Wheelbase 42 ft 1+12 in (12.84 m)
Length 60 ft 1 in (18.31 m)
Width 8 ft 6 in (2.59 m)
Height 12 ft 8+12 in (3.87 m)
Locomotive weight 120 long tons (122 t)
Fuel capacity 1,336 imp gal (6,070 L; 1,604 US gal)
Prime mover English Electric 6KT, 2 off
Traction motors EE, four off
Transmission DC generators, DC traction motors, double reduction gearing
Multiple working Not fitted (except control of slave by master)
Top speed 20 mph (32 km/h)
Power output Engine: 350 hp (261 kW) × 2
Tractive effort Maximum: 70,000 lbf (311.4 kN)
Train heating None
Locomotive brakeforce 37 long tons-force (370 kN)
Train brakes Vacuum
Career British Railways
Number D4500–D4502, later 13001–13003
Axle load class RA 8
Retired 1983–1986

The British Rail Class 13 was formed in 1965. The Tinsley Marshalling Yard needed more powerful shunters to move vehicles around. This was provided by permanently coupling together two Class 08 shunters as a ‘master and slave’ (or ‘cow and calf’) unit. The second of the two units had its cab taken off. Both units were ballasted to improve traction. At first the units were coupled cab-to-cab but it was easier to couple Master nose to Slave cab. The thinking behind adopting this dual locomotive design is that a larger, rigid locomotive could not be used due to the risk of grounding on the hump.

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