Britain's DMUs: 1966-1985

Diesel trains had been introduced even before the announcement of the British Railways modernisation plan in 1955. The first was the BR Derby Lightweight design of 1954, followed by the Metro-Cammell trains in 1955. The Derby units were placed in service in the West Riding of Yorkshire on many services around Leeds and Bradford. They were an instant success, these new cleaner and faster trains inc...