The English Electric Class 37/4 Diesel Locomotivesseeks to show this adaptability by detailing the reason for their initial creation and the various roles played by the class over the years. The advent of privatisation saw an increased demand for their ‘go-anywhere do anything’ ability which is also displayed by the range of photographs.
Once withdrawn from service some class members were purchased for preservation and – such was their adaptability – that preserved examples were hired by train operators to cover duties that no other class of diesel locomotive was capable of achieving.