Class 37 - BR Blue (Orange Cantrail) - 37140March depot's 37140 was one of the first Class 37s to gain the high visibility headlight, being so fitted in mid 1986. It also gained an orange cantrail stripe later the same year before it moved back to Stratford in May 1987. Although allocated to East Anglian infrastructure duties it was no stranger to freight or passenger work, regularly featuring on the summer dated Norwich Gt Yarmouth legs of services from London, the Midlands and the North East.