BR Class 483

The British Rail Class 483 electric multiple units were originally built as 1938 tube stock units for London Underground. They were extensively refurbished between 1989 and 1992 by Eastleigh Works, for use on services on the Isle of Wight's Island Line. This was despite having already worked for nearly 50 years on the London Underground. The units replaced the even older and life-expired British Rail Classes 485 and 486 units, which were introduced in 1967, but were originally built as 'Standard' stock units for the London Electric Railway in 1923. The stock is 80 years old and still in service as of 2018, making it the oldest type in Great Britain to remain in regular service. The current operator, South Western Railway, currently has no plans to replace them.