London Underground F Stock

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F Stock
Manufacturer Met Cammell
In service 1920–1963
Length per car 49 ft 2 in (14.99 m)
Width 9 ft 6 1516 in (2,919 mm)
Height 12 ft 4 12 in (3,772 mm)
Weight DM 39.64 long tons (40.28 t; 44.40 short tons)
DM 44.50 long tons (45.21 t; 49.84 short tons)
CT 24.84 long tons (25.24 t; 27.82 short tons)
T 24.50 long tons (24.89 t; 27.44 short tons)
T 34.50 long tons (35.05 t; 38.64 short tons)
Seating DM 40
CT 44
T 48
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The F Stock was built in 1920 and 1921 for the Metropolitan District Railway (later the London Underground District line). 100 steel-bodied cars were built: 40 driving motors, 12 control trailers and 48 trailers. They had non-standard equipment that precluded multiple-unit operation with any other type of train and had significantly more powerful motors than earlier rolling stock, leading to some initial operating difficulties. As built, the stark interiors proved unpopular and were soon refurbished. The front ends of driving cabs had two distinctive oval windows separated by the centre door.

Between 1939 and 1940, the control trailers were all rebuilt into driving motor cars.

The cars were built with manually operated sliding doors but between 1939 and 1940 these were converted to air operation. In 1950 and 1951, the F Stock was transferred to the Metropolitan line where it operated services between Uxbridge and London, even working the occasional service to Amersham and Watford.

The F Stock was replaced by A60 and A62 Stock in the early 1960s. A few units continued on the East London Line until 1963. None survived into preservation.

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