New South Wales Sputnik suburban carriage stock
| New South Wales Sputnik suburban carriage stock | |
|---|---|
Preserved carriage C3702 now part of heritage set W3 at the Flemington Maintenance Depot | |
| Stock type | Electric multiple unit |
| In service | 1957–1993 |
| Manufacturer | Commonwealth Engineering |
| Built at | Granville |
| Constructed | 1956–1960 |
| Number built |
|
| Formation | 8 carriages |
| Fleet numbers |
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| Operators | |
| Depots | |
| Lines served | All Sydney suburban except Eastern Suburbs |
| Specifications | |
| Car length | 19.105 m (62 ft 8.2 in) |
| Width | 3,142 mm (10 ft 3.7 in) |
| Doors | 8 |
| Maximum speed | 70 mph (113 km/h) |
| Traction system | 4 x Metropolitan-Vickers MV222 or 4 x AEI AEI149 series-wound DC traction motors per power car, each rated at 180 hp, semi automatic electro-pneumatic resistance control |
| Transmission | 74:17 Gear ratio. Helical gears. Wheel diameter 36 inch (914mm) |
| Power supply | 120vDC |
| Electric system(s) | 1,500 V DC catenary |
| Current collector(s) | Single-pan diamond pantograph |
| Braking system(s) | Westinghouse, air |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
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The New South Wales Sputnik suburban carriage stock is a type of electric multiple unit that was operated by the New South Wales Government Railways and its successors between 1957 and 1993 and served on the Sydney rail network.
These trains, as well as other types of single-deck suburban electrics that were first manufactured in the 1920s, are known by Sydneysiders as "Red Rattlers" with the expression coming from Melbourne that referred the wooden Tait trains.