British Rail Class 47 - Sub-Classes

Sub-Classes

In the early 1970s, the fleet was renumbered into the 47xxx series to conform with the computerised TOPS systems. This enabled a number of easily recognisable sub-classes to be created, depending on the differing equipment fitted. The original series were based on train heating capability and were as follows;

• Class 47/0: Locomotives with steam heating equipment
• Class 47/3: Locomotives with no train heating
• Class 47/4: Locomotives with electric train heating

However, this numbering system was later disrupted as locomotives were fitted with extra equipment and were renumbered into other sub-classes. For an overview of the renumbering see the Class 47 renumbering page. This section summarises the main sub-classes that were created.