Class 253
High Speed Train

 

Further to the testing of the prototype Class 252 High Speed Train the production units were soon being built and the first of the Class 253's entered service in 1976. The most obvious change was the design of the power car cab, which, after much deliberation with the trade unions, was changed to include both driver and secondmans seats, and side windows. Gone also were the visible buffers, replaced by a hidden centre buffer and drawgear in a panel below the marker lights. Livery for the MK111 coaching stock reverted back to standard rail blue with grey windows, however the power cars received a striking yellow body with rail blue centre section. (It is interesting to note that the blue centre area was originally intended to be black, and the first power car produced, 43002, was painted in this colour, but changed before entry into service.) The Class 253's originally ran as 9 car units (7 trailers + 2 power cars). Albeit accident damaged examples, all remain in service with the various operating companies today.

Engine: Paxman Valenta 12cyl 12RP200L V-type of 2250bhp (1680kw)

Numbers: Originally the Class 253's were identified as complete units 253 001 - 253 059. This was later changed to individual power car (43002 - 43198, Classes 253 & 254) and coaching stock (various, according to type) identification.
Units 253 001 - 253 059: Power cars W43002 - 55, W43124 - W43152, W43161 - 198 (intended for NE/SW services). Power cars W43120 & W43121 were used as spare units.

The Class 253 HST Power Car Fleet - Click Here