British Rail Class 13

The British Railways 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 wasn’t 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.
==Withdrawal==
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 The unique qualities of the locomotives were not required elsewhere and so withdrawal was inevitable; 13002 was withdrawn in 1983, with the remaining two locomotives going with the closure of Tinsley hump in 1985.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.
==Units==
Three pairs were formed as follows:
Unit number	Unit number	Master unit	Slave unit	Withdrawn 	Fate 	Notes
Original 	TOPS 	Master unit	Slave unit	Withdrawn 	Fate 	Notes
D4501 	13001 	D4190 	D4189 	January 1985	Scrapped at BREL Swindon, May 1985 	[2]
D4502 	13002 	D4187 	D3697 	June 1981 	Scrapped at BREL Swindon, October 1982 	[3]
D4500 	13003 	D4188 	D3698 	January 1985	Scrapped at BREL Doncaster, September 1986	[4]
== Gallery ==
File:Hump Shunter.jpg
File:Maxresdefaultbr13.jpeg
File:5643878786 00e5ab63e8 b.jpg
File:13002a-L.jpg
File:BR Class 13 picture.jpg
==Media==
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