One of the first of the new diesels, the Class 40 locomotives, nicknamed 'whistlers' after their exhaust sound, worked the West Coast Main Line in the early 1960s with broader duties later in their career.
One of the first of the new diesels, the Class 40 locomotives, nicknamed 'whistlers' after their exhaust sound, worked the West Coast Main Line in the early 1960s with broader duties later in their career.