London Underground 1972 Stock

The London Underground 1972 Stock is a type of rolling stock used on the London Underground, built as 63 seven-car trains in two batches. Metro-Cammell built 441 cars at Washwood Heath: the 1972 Mark I Stock had 90 driving motors, 90 trailers and 30 uncoupling non-driving motors to form 30 seven-car trains, and the Mark II Stock was 33 seven-car trains. The stock originally ran on the Northern line until 1999 to make up the shortfall in 1959 Tube Stock, and then moved to the Bakerloo line when the 1995 Stock displaced it. After the 1938 Stock-based Class 483 left the Isle of Wight in 2021, the 1972 Stock became the oldest trains in regular passenger service in the United Kingdom.