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Finnish Railway series G3, G5, G10 and G11 “Mummo”

No. 400 in the Finnish Railway Museum

The class Sk3 that was created in 1942 consisted of 88 locomotives which had been built by four different manufacturers, but were largely similar. All were 2-6-0 two-cylinder cross compound 2-6-0 locomotives for mixed...

Finnish Railway series G3, G5, G10 and G11 “Mummo”Remove
Variant
G3
Built 1892, 1898
Manufacturers SLM
Wheel arrangement 1C
Gauge 1520 mm
Length 14070 mm
Service mass 34500 kg
Top speed 60 km/h
Power
Engine

General

Property Finnish Railway series G3, G5, G10 and G11 “Mummo”
G3
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Built 1892, 1898
Manufacturers SLM
Wheel arrangement 2-6-0 (Mogul)
Gauge 1,520 mm

Dimensions and weights

Property Finnish Railway series G3, G5, G10 and G11 “Mummo”
G3
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Length 14.07 m
Empty mass 31.5 t
Service mass 34.5 t
Axle load 10.6 t
Water capacity 7,900 l
Fuel capacity 4.7 t (coal)

Boiler

Property Finnish Railway series G3, G5, G10 and G11 “Mummo”
G3
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Grate area 1.38 m²
Evaporative heating surface 87.2 m²
Total heating surface 87.2 m²

Power plant

Property Finnish Railway series G3, G5, G10 and G11 “Mummo”
G3
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Driver diameter 1,245 mm
Boiler pressure 12 bar
Expansion type compound
Cylinders two, HP: 400 x 600 mm and LP: 580 x 600 mm

Power

Property Finnish Railway series G3, G5, G10 and G11 “Mummo”
G3
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Power source steam
Estimated power 275 kW (374 PS)
Top speed 60 km/h
Starting effort 53.3 kN
Starting effort simple 64.0 kN

Calculated values

Property Finnish Railway series G3, G5, G10 and G11 “Mummo”
G3
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Optimal speed 32 km/h
Power-to-weight ratio 8.0 kW/t
Tractive force/Heating surface 1 : 12.77
Grate area/Heating surface 1 : 63.19
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