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Saxon X V

No. 186 on a works photo when it was delivered in 1902

With increasing train weights around the turn of the century, the Saxon State Railways had to find the best design for a powerful express locomotive. The requirements included that a train of 385 tonnes had to be haul...

	Saxon X V Remove
Variant	1900 variant 1900 variant 1902 variant 1903 variant
Built	1900
Manufacturers	Hartmann
Wheel arrangement	2B1
Gauge	1435 mm
Length	19485 mm
Service mass	69300 kg
Top speed	125 km/h
Power
Engine

General

Property	Saxon X V 1900 variant 1900 variant 1902 variant 1903 variant Remove
Built	1900
Manufacturers	Hartmann
Wheel arrangement	4-4-2 (Atlantic)
Gauge	1,435 mm

Dimensions and weights

Property	Saxon X V 1900 variant 1900 variant 1902 variant 1903 variant Remove
Length	19.49 m
Wheelbase	9.15 m
Empty mass	61.9 t
Service mass	69.3 t
Adhesion mass	32 t
Total mass	112.2 t
Rigid wheelbase	2.15 m
Axle load	16 t
Water capacity	18,000 l
Fuel capacity	5 t (coal)

Boiler

Property	Saxon X V 1900 variant 1900 variant 1902 variant 1903 variant Remove
Grate area	2.41 m²
Firebox surface	13.65 m²
Tube heating surface	151.5 m²
Evaporative heating surface	165.15 m²
Total heating surface	165.2 m²

Power plant

Property	Saxon X V 1900 variant 1900 variant 1902 variant 1903 variant Remove
Driver diameter	1,980 mm
Boiler pressure	15 bar
Expansion type	compound
Cylinders	four, HP: 350 x 660 mm and LP: 555 x 660 mm

Power

Property	Saxon X V 1900 variant 1900 variant 1902 variant 1903 variant Remove
Power source	steam
Estimated power	800 kW (1,088 PS)
Top speed	125 km/h
Starting effort	74.5 kN
Starting effort simple	89.4 kN

Calculated values

Property	Saxon X V 1900 variant 1900 variant 1902 variant 1903 variant Remove
Factor of adhesion	1 : 4.21
Optimal speed	66 km/h
Power-to-weight ratio	11.5 kW/t
Heating Surface Equivalent	233.4 m²
Cylinder volume/HSE	1 : 1,228.22
Adhesive weight/Total	1 : 2.17
Tractive force/Heating surface	1 : 9.42
Grate area/Heating surface	1 : 68.53
Firebox/Tube surface	1 : 11.10

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