British Rail Class 13

British Rail Class 13

13003 at Tinsley TMD

Type and origin Power type Diesel-electric Builder British Railways Darlington Works (builder and rebuilder) Build date 1965 (rebuilt) Total produced 3

Specifications Configuration: ​  • Whyte 0-6-0+0-6-0  • AAR C-C  • UIC C+C Gauge 4 ft 8 1⁄2 in (1,435 mm) standard gauge Wheel diameter 4 ft 6 in (1.372 m) Wheelbase 42 ft 1 1⁄2 in (12.84 m) Length 60 ft 1 in (18.31 m) Width 8 ft 6 in (2.59 m) Height 12 ft 8 1⁄2 in (3.87 m) Loco weight 120 long tons (122 t; 134 short tons) Fuel capacity 1,336 imp gal (6,070 l; 1,604 US gal) Prime mover English Electric 6KT, 2 off Generator DC Traction motors EE, four off Transmission Diesel electric, double reduction gearing MU working Not fitted (except control of slave by master) Train heating None Train brakes Vacuum

Performance figures Maximum speed 20 mph (32 km/h) Power output Engine: 350 hp (261 kW) × 2 Tractive effort Maximum: 70,000 lbf (311.4 kN) Brakeforce 37 long tons-force (370 kN)

Career Operators British Railways Numbers D4500–D4502, later 13001–13003 Axle load class RA 8 Retired 1983–1986 Disposition All scrapped

Type and origin
Power type	Diesel-electric
Builder	British Railways Darlington Works (builder and rebuilder)
Build date	1965 (rebuilt)
Total produced	3

Specifications
Configuration:	​
• Whyte	0-6-0+0-6-0
• AAR	C-C
• UIC	C+C
Gauge	4 ft 8 1⁄2 in (1,435 mm) standard gauge
Wheel diameter	4 ft 6 in (1.372 m)
Wheelbase	42 ft 1 1⁄2 in (12.84 m)
Length	60 ft 1 in (18.31 m)
Width	8 ft 6 in (2.59 m)
Height	12 ft 8 1⁄2 in (3.87 m)
Loco weight	120 long tons (122 t; 134 short tons)
Fuel capacity	1,336 imp gal (6,070 l; 1,604 US gal)
Prime mover	English Electric 6KT, 2 off
Generator	DC
Traction motors	EE, four off
Transmission	Diesel electric, double reduction gearing
MU working	Not fitted (except control of slave by master)
Train heating	None
Train brakes	Vacuum

Performance figures
Maximum speed	20 mph (32 km/h)
Power output	Engine: 350 hp (261 kW) × 2
Tractive effort	Maximum: 70,000 lbf (311.4 kN)
Brakeforce	37 long tons-force (370 kN)

Career
Operators	British Railways
Numbers	D4500–D4502, later 13001–13003
Axle load class	RA 8
Retired	1983–1986
Disposition	All scrapped

The British Rail Class 13 was a type of diesel-electric shunting locomotive. The type was designed in 1965 because of the need to provide more powerful shunters for the Tinsley Marshalling Yard. Because of Tinsley's status as a hump yard, it was not possible to use a single locomotive owing to the risk of grounding. So, to achieve the required power, a pair of Class 08 shunters were permanently coupled in 'master and slave' formation, with the slave unit having had its cab removed. Both units were then ballasted to improve traction. Initially coupled cab-to-cab, it was found more practical to couple master nose to slave cab.

With the end of hump shunting at Tinsley the class became obsolete. The unique qualities of the locomotives were not required elsewhere and so withdrawal was inevitable; 13002 was withdrawn in 1983, with the remaining two locomotives going with the closure of Tinsley hump in 1985. None of this unusual class survives.

Three pairs were formed as follows:

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