| New South Wales 81 class |
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| Type and origin |
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| Power type | Diesel-electric |
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| Builder | Clyde Engineering, Kelso |
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| Serial number | 82-1020 to 82-1034
83-1035 to 83-1058
84-1059 to 84-1082
85-1083 to 85-1099
91-1278 to 91-1281 |
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| Model | EMD JT26C-2SS |
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| Build date | 1982–1985, 1991 |
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| Total produced | 84 |
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| Specifications |
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Configuration:
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| • UIC | Co-Co |
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| Gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
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| Wheel diameter | 1,016 mm (40 in) |
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| Length | Over headstocks:
19.760 m (64 ft 10 in),
Over coupler pulling faces:
21.156 m (69 ft 4+7⁄8 in) |
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| Width | 2,968 mm (9 ft 8+7⁄8 in) |
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| Height | 4,267 mm (14 ft 0 in) |
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| Axle load | 21.5 t
(21.2 long tons; 23.7 short tons) |
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| Loco weight | 129 t
(127.0 long tons; 142.2 short tons) |
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| Fuel type | Diesel |
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| Fuel capacity | 6,600 L
(1,450 imp gal; 1,740 US gal) |
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| Lubricant cap. | 920 L (202 imp gal; 243 US gal) |
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| Coolant cap. | 1,117 L
(246 imp gal; 295 US gal) |
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| Sandbox cap. | 0.475 m3 (16.8 cu ft) |
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| Prime mover | EMD 16-645E3B |
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| RPM range | 318–904 |
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| Engine type | Two-stroke V16 diesel |
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| Aspiration | Turbocharged |
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| Alternator | EMD AR16 |
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| Traction motors | EMD D77, 6 of |
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| Cylinders | 16 |
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| Cylinder size | 229 mm × 254 mm
(9.0 in × 10.0 in) |
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| Transmission | Electric |
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| MU working | Equipped |
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| Loco brake | Air And Dynamic Brake |
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| Train brakes | Air |
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| Safety systems | Deadman Switch |
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| Performance figures |
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| Maximum speed | 115 km/h (71 mph) |
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| Power output | Gross:
2,460 kW (3,300 hp)
For traction:
2,240 kW (3,000 hp) |
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| Tractive effort | Continuous:
337.00 kN (75,761 lbf)
at 19.2 km/h (11.9 mph) |
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The 81 class are a class of diesel locomotives built by Clyde Engineering, Kelso for the State Rail Authority.
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