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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 superheated |
|---|---|
| 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 superheated |
|---|---|
| Wheelbase | 7.14 m |
| Rigid wheelbase | 4.65 m |
| Total wheelbase | 15.92 m |
| Service weight | 72.5 t |
| Adhesive weight | 65.5 t |
| Axle load | 17.6 t |
| Total weight | 126.3 t |
| Water capacity | 16,591 l |
| Fuel capacity | 11.2 t (coal) |
Boiler
| Property | New South Wales class D53 superheated |
|---|---|
| Grate area | 2.671 m² |
| Firebox surface | 16.202 m² |
| Tube heating surface | 147.028 m² |
| Evaporative heating surface | 163.231 m² |
| Superheater surface | 41.435 m² |
| Total heating surface | 204.7 m² |
Power plant
| Property | New South Wales class D53 superheated |
|---|---|
| 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 superheated |
|---|---|
| Power source | steam |
| Estimated power | 820 kW (1,115 PS) |
| Starting effort | 149.3 kN |
Calculated values
| Property | New South Wales class D53 superheated |
|---|---|
| Factor of adhesion | 1 : 4.30 |
| Optimal speed | 34 km/h |
| Power-to-weight ratio | 11.3 kW/t |
| Heating Surface Equivalent | 327.1 m² |
| Cylinder volume/HSE | 1 : 990.25 |
| Adhesive weight/Total | 1 : 1.11 |
| Tractive force/Heating surface | 1 : 15.23 |
| Grate area/Heating surface | 1 : 76.63 |
| Firebox/Tube surface | 1 : 9.07 |
| Total/Superheater | 1 : 3.94 |
