S Stock

  S Stock  S stock is a type of train operating on London Underground

S Stock made by bombardier transortation are in the process of replacing 177 trains on the Metropolitan, District, Hammersmith and City, and circle lines. There were 191 trains (1,395 cars) made. It is now possible for a passenger to walk from one car to the next while the train is moving, unlike older trains

The stock has 2 types S7 and S8, serving different lines, with differences in the arrangement of the seating and number of cars.



S7
The S7 stock is 1 of the 2 S stock trains. It has 7 cars. It is going is running on the Hammersmith & city line, the Circle line and the District line

Entry into service
The first trains on the hammersmith and city line started on 6th of July 2012 from hammersmith to moorgate. S7 trains are longer than those they are replacing so some station platforms are having to be lengthened before they can operate a normal service. For stations where this is has proved impossible, such as Baker street the trains have a selective-door-opening capability where the doors at the end of the train will not open.



S7 Stock entered service on the circle line on 2nd of september 2013 and completely replaced C Stock trains on 10th February 2014.

The first S7 Stock train on the District line entered service between Kensington Oyimpia and West Ham on 2nd September 2013. Since D78 Stock was refurbished in 2005-08 and C Stock has been discribed by London Underground as being "in a increasingly poor state", the older C Stock is being replaced first, with all trains planned to be replaced by the end of 2016.

S8
The S8 stock is 1 of the 2 S stock trains. It has 8 cars. It is running on the Metropolitan line.

Entry into service
By june 2011, S8 stock was running the along the whole Metropolitan line.