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Class 115 Derby 4-car DMUs

Introduced: 1960
Coupling code: Blue Square
Underframe: 64ft 6in
Engines: Albion 230hp
Transmission: Mechanical

Class 115

These 41 high density sets operated the outer-suburban services from Marylebone to Aylesbury, High Wycombe and Banbury, which were known as the Chiltern Lines. Strangely, these were under Table 115 in the timetable!

Based on the basic Derby high density design, some sets also worked between Liverpool and Manchester in the early years, and from Tyseley in the later years.

The Marylebone sets, which were later transferred to Bletchley but remained on Chiltern Line duties, were declared surplus after the introduction of Class 165s, from '91 onwards. While at Bletchley depot the class was also used on the Barking to Gospel Oak line, units being formed as power twins. They were in turn replaced on this line by class 117 power twins.

The final Class 115 working out of Marylebone was in July '92. The Tyseley sets survived a bit longer until Feb '94. Many vehicles were preserved.


Details about preserved Class 115s can be found here.

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