London Underground S7 and S8 Stock

The S Stock is a type of electric multiple unit owned by Transport for London (TfL), for use on the on the sub-surface lines of the London Underground. The current status of useage is as follows:
Metropolitan line. _  S Stock (Replaces A Stock.)                                              
Circle line.  _ C Stock (due to replaced later this year)
Hammersmith & City line. _ S Stock (Replaces C Stock)
District Line. _ D Stock(due to be replaced in 2016)]
==History==
The S Stock was designed to cope with the increasing strain on the older sub-surface lines of the tube network.
Unlike other trains, it has air conditioning and articulated middles, meaning you can walk beetween carriages freely.
==Trivia==
The S Stock, the newest train on the network, shares its style with the 2009 Stock, both being part of Bombardier's "Movia" family
Category:London Underground
Category:Electric trainsets
Category:United Kingdom
Category:Bombardier locomotives
Category:Unfinished articles
Category:Article stubs
Category:Bulit in 2010
Category:Built in 2013
Category:Locomotives
Category:Passenger locomotives