London Underground 1986 Stock

The London Underground 1986 Tube Stock consisted of three prototype electric multiple units built for London Underground in 1986 and 1987 that led to the development of the 1992 Stock. London Transport ordered three different prototype trains in 1984 to test new materials, construction methods and seating layouts, and two of them were built by Metro-Cammell at its Washwood Heath works. The public consultation favoured the green prototype, which provided the core design basis for the 1992 Stock built for the Central line and for the Class 482 built for the Waterloo and City line. After being stored for seven years, all cars except one green driving motor were scrapped in 1996.