British Rail Class 503
|British Rail Class 503|
A British Rail Class 503 train on the Liverpool Loop and Link underground system. This train was one of the original batch built by the LMS in 1938.
|Manufacturer||London, Midland and Scottish Railway, British Railways|
|Formation||power car + trailer + driving trailer|
|Operator(s)||LMS and British Railways|
|Car length||58ft 0in|
|Height||11ft 10 1/4in|
|Maximum speed||70mph (110 km/h)|
|Weight||Total - 77 tons|
|Power output||4 x 135 hp traction motors
total 540 hp (403 kW)
|Electric system(s)||650V dc third rail|
|Track gauge||standard gauge|
British Rail Class 503 trains were 70mph (110km/h) electric multiple units. They were introduced in two batches — in 1938 by the London, Midland and Scottish Railway (LMS) with a further batch (built to a similar design) in 1956 by the then nationalised British Railways (BR).