This period of nationalisation saw sweeping changes in the railway network: steam traction was eliminated in favour of diesel and electric power, passengers replaced freight as the main source of business, and one third of the network was axed.
DP2 at Camden shed in Summer 1962. Built by English Electric at the Vulcan Foundry in 1962 using a Deltic bodyshell (reputed to be shell No18). The loco was fitted with an English Electric 16CSVT engine of 2700-hp. On 31 July 1967 DP2 was involved in a serious accident at Thirsk, colliding at speed with the de-railed Cliffe (Kent) to Uddingston (Glasgow) cement train and was withdrawn in Sept 1967 and scrapped in 1970.