Propelling control vehicle

British mail-carrying control cars

A propelling control vehicle (PCV) is a type of British railway carriage for carrying mail. They were converted from Class 307 driving trailers and have a cab at one end which allows slow-speed movement control. PCVs are unpowered but the controls allow mail trains to be reversed at low speed, using the power of the locomotive at the other end of the train. Similar BR Class 91 driving van trailer (DVT) used on the ECML differ by being fully equipped for high-speed train control.

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