To replace steam hauled stock in the Hampshire area in 1957 eighteen two coach Diesel Electric Multiple Units to a BR standard design were built. Unlike most diesel multiple units (which have mechanical drives) the power cars on DEMUs are effectively mini diesel-electric locomotives with final drive by electric traction motors. This was the Southern's preferred form of multiple unit away from the third rail juice, governed by commonality with the EMU fleet of many components for maintenance purposes. Designated 2H (for Hampshire) they consisted of a motor brake second saloon (MBSO) and a driving trailer composite (DTC) - the DEMU equivalent of a 2 Hap. |
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Unit 1113 at Barcombe Mills on a winter service.
photograph by Keith Harwood |
A further four units were built in 1958 for use in East
Sussex and Kent. Between 1959 and 1960 the original eighteen units were
augmented to 3 car by addition of a trailer second semi-saloon (TSO) and four
more 3 car units were built. The new designation became 3H (class 205). A final
batch of seven units were built for service between Salisbury and Reading.
These were different in that they had larger guards vans and were designated
Berkshire units, although still 3H/class 205. As some branches in Hampshire
closed surplus units were drafted for use on the Oxted line.
Rebuilding of most of the non Berkshire units to create a luggage compartment in the DTC occurred between 1963 and 1964 however this work was reversed in 1975/76 on most of the units used on the Oxted line. In 1979 driving trailers from disbanded 3R Tadpole units were used to augment the remaining 2 car units to 3 car. These units were re-designated 3T (class 204). In 1979 one unit underwent an experimental refurbishment much modernising the passenger accommodation and becoming class 3H(M). This rebuilding remained an experiment and it was not repeated on the rest of the class. |
Consecutively numbered unit 1114 seen running into Isfield.
photograph by Ray Soper |
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With the electrification of lines in the Fareham area further reducing their original service requirement and prior to the introduction of Sprinter DMUs the scope of operation of these units increased to regional services working between places such as Portsmouth and Bristol. Withdrawal and reformation of units has happened during the class's later life, although until replacements arrive in 2004 the survivors are still in service working for South Central alongside the remaining class 207 units down to Uckfield or across the Kent marsh. |
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Unit 1116 pauses at Grange Road. Note the unusual 'V' painted on
the front of the brake end driving cab. As the unit ran into a station this
indicated to the staff that the luggage van was at this end of the unit.
photograph by Keith Harwood |
Unit 1106 at Quidhampton, near Salisbury, on 19th May 1973.
photograph by Dave Mant |
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Unit 1106 has now passed the photographer and is seen here going
away from Quidhampton.
photograph by Dave Mant |
Unit 1124 at Berwick during September 1985
photograph by Mark Westcott |
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Unit 1105 near Hampden Park during February 1986.
photograph by Mark Westcott |
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This page was last updated 28 December 2008