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| LB&SCR Coulsdon North & Sutton stock | |
|---|---|
| In service | 1925–1929 |
| Manufacturer | Metropolitan Carriage, Wagon and Finance Company |
| Constructed | 1923–1924 |
| Number built | 101 vehicles |
| Formation | 5-car sets:DTT-DTC-MLV-TC-DTT |
| Operators | Southern Railway |
| Specifications | |
| Car length | MLV: 42 ft 1 in (12.83 m) |
| Weight | MLV: 62 long tons (63 t; 69 short tons) |
| Power output | 1,000 hp (750 kW) |
| Transmission | FourGEC traction motors of 250 hp (186 kW) |
| Electric system(s) | 6.7kVACoverhead lines |
| Current collection | Bow collector |
| Track gauge | 4 ft 8+1⁄2 in (1,435 mm)standard gauge |
TheSouthern Railway (SR) gave the designationCW to the fleet of ACelectric multiple units used on the lines toCoulsdon andWallington. They were planned by theLondon, Brighton and South Coast Railway, but were delayed byWorld War I and thegrouping and were introduced by the Southern Railway.
TheCW (Coulsdon andWallington stock) units were built in 1923–1924, as the last electric train stock for use on theLBSCR AC overhead electrified lines in South London. This stock comprised some hundred carriages, which were used in five-car formations: Driving TrailerThird (DTT) + Driving TrailerComposite (DTC) + Motor Luggage Van (MLV) + Trailer Composite (TC) + Driving Trailer Third (DTT).
The stock, built by theMetropolitan Carriage, Wagon and Finance Company atBirmingham, was as follows:
The Motor Luggage Vans (nicknamed "Milk Vans") each had four 250 horsepower (190 kW)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 trainbrake vans.
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