D5705

   D5705  D5705 is BoCo's brother, who was only mentioned in an annual. In another annual, BoCo claimed to have a twin called "CoBo" in order to play a trick on Bill and Ben. D5705 is in fact a real Diesel engine preserved at the East Lancashire Railway.
 * Class: BR Class 28
 * Number: D5705
 * Designer: Metropolitan Vickers
 * Builder: Bowesfield Works
 * Configuration: Co-Bo

Preservation
D5705 survived by historical accident as a technical services engine and then carriage heating unit TDB968006 before being preserved in 1980. The Class 15 Preservation Society has signed an agreement with the owners of D5705 to become its custodians during its restoration and operation for the next ten years, although funding will remain separate.

Livery
D5705 is painted in the green livery of British Railways with yellow warning panels.