As part of the overall programme for the renewal of the Central Line, London Underground is purchasing three prototype trains. These trains incorporate many new features and will form the basis for the next generation of tube rolling stock.
The trains are being bought on a main contractor basis and a complete specification was produced. The trains were ordered in May 1984 and are due for delivery this year. The major technical innovations of the trains are the use of large aluminium extrusions, solid state traction control, and materials with an improved fire performance.
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