Editing SR Class CW

{{Use dmy dates|date=November 2016}}
{{Use British English|date=November 2016}}
{{Ref improve|date=May 2016}}
{{No footnotes|date=May 2016}} 
{{Infobox Train
| background       = #503300;color:lightgoldenrodyellow
| name             = LB&SCR Coulsdon North & Sutton stock
| image            = 
| imagesize        = 
| caption          = 
| interiorimage    = 
| interiorcaption  = 
| service          = 1925–1929
| manufacturer     = [[Metropolitan Carriage, Wagon and Finance Company]]
| factory          = 
| family           = 
| replaced         = 
| yearconstruction = 1923–1924
| yearservice      = 
| refurbishment    = 
| yearscrapped     = 
| numberbuilt      = 101 vehicles
| numberservice    = 
| numberpreserved  = 
| numberscrapped   = 
| formation        = 5-car sets: {{abbr|DTT|Driving Trailer Third}}-{{abbr|DTC|Driving Trailer Composite}}-{{abbr|MLV|Motor Luggage Van}}-{{abbr|TC|Trailer Composite}}-DTT
| fleetnumbers     = 
| capacity         = 
| operator         = [[Southern Railway (Great Britain)|Southern Railway]]
| depots           = 
| lines            = 
| carbody          =
| trainlength      =
| carlength        = MLV: {{convert|42|ft|1|in|m|2|abbr=on}} 
| width            = 
| height           = 
| floorheight      = 
| platformheight   = 
| entrylevelorstep = 
| art-sections     = 
| doors            = 
| maxspeed         = 
| weight           = MLV: {{convert|62|LT|t ST}}
| acceleration     = 
| deceleration     = 
| traction         = 
| poweroutput      = {{convert|1000|hp|kW||abbr=on}}
| transmission     = Four [[General Electric Company plc|GEC]] traction motors of {{convert|250|hp|kW|0|abbr=on}}
| aux              = 
| powersupply      = 
| hvac             = 
| electricsystem   = 6.7 [[Volt|kV]] [[Alternating current|AC]] [[overhead line]]s
| collectionmethod = [[Bow collector]]
| uicclass         = 
| bogies           = 
| brakes           = 
| safety           = 
| coupling         = 
| multipleworking  = 
| gauge            = {{Track gauge|ussg|allk=on}}
}}
The [[Southern Railway (UK)|Southern Railway (SR)]] gave the designation '''CW''' to the fleet of AC [[electric multiple unit]]s used on the lines to [[Coulsdon]] and [[Wallington, London|Wallington]].  They were planned by the [[London, Brighton and South Coast Railway]], but were delayed by [[World War I]] and the [[Railways Act 1921|grouping]] and were introduced by the Southern Railway.

== Construction ==
The '''CW''' ('''C'''oulsdon and '''W'''allington stock) units were built in 1923–1924, as the last electric train stock for use on the [[London, Brighton and South Coast Railway|LBSCR]] AC overhead electrified lines in South London.  This stock comprised some hundred carriages, which were used in five-car formations: Driving Trailer [[Travel class#Trains|Third]] (DTT) + Driving Trailer [[Travel class#Trains|Composite]] (DTC) + Motor Luggage Van (MLV) + Trailer Composite (TC) + Driving Trailer Third (DTT).

The stock, built by the [[Metropolitan Carriage, Wagon and Finance Company]] at [[Birmingham]], was as follows:

* 21 Motor Luggage Vans
* 60 Driving Trailers
* 20 Trailers

The Motor Luggage Vans (nicknamed "Milk Vans") each had four {{convert|250|hp}} [[General Electric Company plc|GEC]] traction motors.

After the replacement of the AC overhead equipment by the 660 V DC third rail system adopted as standard by the SR, the carriages that formed these units were rebuilt accordingly, the Motor Luggage Vans becoming bogie goods train [[brake van]]s.

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==Formations==
Initial formations of these units were as follows:
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==References==
*{{cite book |last=Gould |first=David |year=1995 |title=Bogie Carriages of the London, Brighton and South Coast Railway |location=Headington, Oxford |publisher=[[The Oakwood Press]] |pages=168–190 |isbn=0-85361-470-9}}
*{{Marsden-SouthernEMU1|pages=11–13, 92}}
*{{cite book |last=Golding |first=Brian |year=2009 |title=A Pictorial Record Of Southern Electric Units |location=Corhampton, Southampton |publisher=[[Noodle Books]] |isbn=978-1-906419-34-9}}


{{British Rail EMU}}

[[Category:British Rail electric multiple units|SR CW]]
[[Category:Southern Railway (UK) electric multiple units|CW]]
[[Category:London, Brighton and South Coast Railway]]
[[Category:Train-related introductions in 1925]]

{{electric-loco-stub}}
[[Category:Metropolitan Cammell multiple units]]