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Victorian Railways class D[h]D[/h]

D[h]D[/h] No. 5902 on a factory photo

The class D[h]D[/h] express locomotive marked the change from the 4-4-0 to the 4-6-0 wheel arrangement for the Victorian Railways. It was the railway's first locomotive, which they developed themselves in 1902 and whi...

	Victorian Railways class D[h]D[/h]Remove
Variant	D[h]D[/h][t]E[/t] D[h]D[/h] rebuilt D[h]2[/h] D[h]D[/h][t]E[/t]
Built	ab 1908
Manufacturers	Newport
Wheel arrangement	2C1 t
Gauge	1600 mm
Length	12760 mm
Service mass	70107 kg
Top speed
Power
Engine

General

Property	Victorian Railways class D[h]D[/h] D[h]D[/h][t]E[/t] D[h]D[/h] rebuilt D[h]2[/h] D[h]D[/h][t]E[/t] Remove
Built	ab 1908
Manufacturers	Newport
Wheel arrangement	4-6-2T (Pacific)
Gauge	1,600 mm

Dimensions and weights

Property	Victorian Railways class D[h]D[/h] D[h]D[/h][t]E[/t] D[h]D[/h] rebuilt D[h]2[/h] D[h]D[/h][t]E[/t] Remove
Length	12.76 m
Wheelbase	9.56 m
Service mass	70.1 t
Adhesion mass	44 t
Rigid wheelbase	3.91 m
Axle load	14.7 t
Water capacity	19,147 l
Fuel capacity	5.1 t (coal)

Boiler

Property	Victorian Railways class D[h]D[/h] D[h]D[/h][t]E[/t] D[h]D[/h] rebuilt D[h]2[/h] D[h]D[/h][t]E[/t] Remove
Grate area	2.09 m²
Firebox surface	11.148 m²
Tube heating surface	119.659 m²
Evaporative heating surface	130.808 m²
Total heating surface	130.8 m²

Power plant

Property	Victorian Railways class D[h]D[/h] D[h]D[/h][t]E[/t] D[h]D[/h] rebuilt D[h]2[/h] D[h]D[/h][t]E[/t] Remove
Driver diameter	1,549 mm
Boiler pressure	12.8 bar
Expansion type	simple expansion
Cylinders	two, 483 x 660 mm

Power

Property	Victorian Railways class D[h]D[/h] D[h]D[/h][t]E[/t] D[h]D[/h] rebuilt D[h]2[/h] D[h]D[/h][t]E[/t] Remove
Power source	steam
Estimated power	559 kW (760 PS)
Starting effort	107.6 kN

Calculated values

Property	Victorian Railways class D[h]D[/h] D[h]D[/h][t]E[/t] D[h]D[/h] rebuilt D[h]2[/h] D[h]D[/h][t]E[/t] Remove
Factor of adhesion	1 : 4.01
Optimal speed	32 km/h
Power-to-weight ratio	8.0 kW/t
Heating Surface Equivalent	186.5 m²
Cylinder volume/HSE	1 : 1,295.13
Adhesive weight/Total	1 : 1.59
Tractive force/Heating surface	1 : 17.18
Grate area/Heating surface	1 : 62.59
Firebox/Tube surface	1 : 10.73

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