New South Wales U set
| U set | |
|---|---|
Preserved driving car CF 5003 at Junee Roundhouse Railway Museum  | |
Interior  | |
| 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 | 12 motor cars, 18 trailer cars (as of 2018) | 
| Formation | 4 car sets (6, 8 and 10 Car sets in peak hours) | 
| Fleet numbers | 
  | 
| Operators | |
| Depots | 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(s) | 1,500 V DC catenary | 
| Current collector(s) | Single-pan diamond pantograph | 
| Braking system(s) | 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 were a class of electric multiple unit (EMU) operated by the New South Wales Government Railways and its successors between September 1958 and November 1996. They were colloquially nicknamed U-boats.