London Underground 1992 Stock
The London Underground 1992 Stock is a type of rolling stock used on the Central and Waterloo & City lines of the London Underground. A total of 85 eight-car trains were built for the Central line and 5 four-car trains were built for the Waterloo & City line. Construction The 1992 Stock was built by British Rail Engineering Limited (BREL) (under ABB) for the Central line following extensive testing of the three 1986 tube stock prototype trains. Even so, the introduction of this stock was far from trouble-free and there were many technical teething problems that had to be ironed out. Eighty-five 8-car trains were ordered from BREL, each formed of four two-car units (two units had driving cabs, the others were fitted with shunting controls). Upon entering service in April 1993, the new trains gradually replaced the previous 1962 tube stock, which was completely withdrawn two years later. The trains were manufactured at the Derby Litchurch Lane Works. The propulsion for the trains was manufactured by a consortium of ABB and Brush Traction, and was one of the first examples of microprocessor-controlled traction featuring a fibre-optic network to connect the different control units. The DC traction motors of LT130