The British Railways Class 41 diesel-hydraulic locomotives were built by the North British Locomotive Company in Glasgow during 1957 and 1958. Although they were withdrawn before TOPS was introduced British Rail classified them as Class 41. All were named after Royal Navy vessels hence the nameplates each bore a subtitle Warship Class.
_'Warship'_Diesel-hydraulic_on_an_Up_express._geograph-2392198-by-Ben-Brooksbank.jpg?width=300)