Tube geek (31)This is the age of the train Some of the tube trains we travel on every day are brand new, whereas others are half a century old. Here's a chronological line-by-line list, most ancient first. Metropolitan (A stock, 1960) The oldest trains on the network, slowly being replaced by air-conditioned S Stock(2010). Victoria (1967 stock) Driverless trains from the 1960s, slowly being replaced by gleaming (but tetchy) 2009 stock. Circle, Hammersmith & City, District (C stock, 1969 & 1977) The trains with the fewest seats, to be replaced (from 2011) by S Stock (with even fewer seats). Bakerloo (1972 stock) Squat rumbly trains, with disturbingly brown seating throughout. Piccadilly (1973 stock) Trains with Heathrow-sized luggage spaces, due to be replaced in 2014 (but on hold due to lack of funds). District (D stock, 1980) Serve the entire line except for Edgware Road to Wimbledon. Recently refurbished, and due for replacement from 2013 (S stock again). Central, Waterloo & City (1992 stock) Relatively modern beasts, replacing delightfully bog-standard trains from 1962. Northern (1995 stock) Replacements for trains from 1959 and 1972 (and now too long to fit in certain platforms). Jubilee (1996 stock) Whining, wheezing millennial trains.