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New South Wales class D53
The class D53, originally designated TF939, was a 2-8-0 freight locomotive introduced in 1912. It was a development of the D50, initially known as T524. It had the same driver diameter of four feet and three inches (1...
General
| Property | New South Wales class D53 saturated |
|---|---|
| Built | 1912-1917 |
| Manufacturers | Clyde Engineering, Eveleigh |
| Wheel arrangement | 2-8-0 (Consolidation) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | New South Wales class D53 saturated |
|---|---|
| Wheelbase | 7.14 m |
| Rigid wheelbase | 4.65 m |
| Total wheelbase | 15.91 m |
| Service weight | 72.1 t |
| Adhesive weight | 65.1 t |
| Axle load | 16.7 t |
| Total weight | 114.5 t |
| Water capacity | 16,591 l |
| Fuel capacity | 6.1 t (coal) |
Boiler
| Property | New South Wales class D53 saturated |
|---|---|
| Grate area | 2.671 m² |
| Firebox surface | 16.19 m² |
| Tube heating surface | 189.962 m² |
| Evaporative heating surface | 206.152 m² |
| Total heating surface | 206.2 m² |
Power plant
| Property | New South Wales class D53 saturated |
|---|---|
| Driver diameter | 1,295 mm |
| Boiler pressure | 11 bar |
| Expansion type | simple expansion |
| Cylinders | two, 559 x 660 mm |
Power
| Property | New South Wales class D53 saturated |
|---|---|
| Power source | steam |
| Estimated power | 708 kW (963 PS) |
| Starting effort | 149.3 kN |
Calculated values
| Property | New South Wales class D53 saturated |
|---|---|
| Factor of adhesion | 1 : 4.28 |
| Optimal speed | 29 km/h |
| Power-to-weight ratio | 9.8 kW/t |
| Heating Surface Equivalent | 287.1 m² |
| Cylinder volume/HSE | 1 : 1,128.25 |
| Adhesive weight/Total | 1 : 1.11 |
| Tractive force/Heating surface | 1 : 15.12 |
| Grate area/Heating surface | 1 : 77.18 |
| Firebox/Tube surface | 1 : 11.73 |
