New South Wales U set
| U set | |
|---|---|
Set U3A at Emu Plains, 1971 | |
Interior of preserved motor car CF5003 | |
| Stock type | Electric Multiple Unit |
| In service | 15 September 1958 – 1 November 1996 |
| Manufacturer | Commonwealth Engineering |
| Built at | Granville |
| Constructed | 1957–1960 |
| Entered service | September 1958 – March 1960 |
| Number built |
|
| Number preserved | 60 carriages (29 in original condition as of 2017, 31 recycled for structural purposes) |
| Number scrapped | 20 carriages |
| Formation | 4 car sets (6, 8 and 10 Car sets in peak hours) |
| Fleet numbers |
|
| Operators | |
| Depot | Flemington Maintenance Depot |
| Lines served | |
| Specifications | |
| Car length | 20.57 m (67 ft 5+7⁄8 in) |
| Width | 2,950 mm (9 ft 8+1⁄8 in) |
| Height | 3,920 mm (12 ft 10+3⁄8 in) |
| Maximum speed | 70 mph (113 km/h) |
| Weight | 49 long tons 8 cwt (110,700 lb or 50.2 t) |
| Traction system | 4 Metropolitan-Vickers MV222 series-wound DC traction motors per motor coach, 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 | 1,500 V DC catenary |
| Current collection | Single-pan diamond pantograph |
| Braking systems | Westinghouse Brake & Signal Co electro-pneumatic and automatic air brakes, brake blocks active on all wheels |
| Coupling system | automatic coupling |
| Multiple working | MU capable in various formations |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
The U sets are a class of electric multiple unit (EMU) that were operated by the New South Wales Government Railways and its successors between September 1958 and November 1996. They were colloquially nicknamed "U Boats" after the German Submarine of the same name.