French Western Railway No. 500
France 1884 1 produced
After the compound locomotives of the Webb type were apparently successful in Great Britain, the Ouest also ordered one locomotive for trials. Like the British locomotives, it had two small outside high-pressure cylinders driving the second driving axle and one large inside low-pressure cylinder driving the first driving axle. These two axles were not coupled to each other. The number 500 was rebuilt in the meantime, but was already retired in 1901.
Technical data
General
- Built
- 1884
- Manufacturers
- Sharp, Stewart & Co.
- Wheel arrangement
- 2-2-2-0 (Webb Compound)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Service mass
- 37 t
- Adhesion mass
- 26.1 t
- Rigid wheelbase
- 2.52 m
- Axle load
- 13.4 t
Boiler
- Grate area
- 1.56 m²
- Firebox surface
- 9.3 m²
- Tube heating surface
- 89.5 m²
- Evaporative heating surface
- 98.8 m²
- Total heating surface
- 98.8 m²
Power plant
- Driver diameter
- 1,980 mm
- Boiler pressure
- 10.5 bar
- Expansion type
- compound
- Cylinders
- three, HP: 330 x 610 mm and LP: 660 x 610 mm
Power
- Power source
- steam
- Estimated power
- 350 kW (476 PS)
- Starting effort
- 35.9 kN
- Starting effort simple
- 43.1 kN
Calculated values
- Factor of adhesion
- 1 : 7.13
- Optimal speed
- 60 km/h
- Power-to-weight ratio
- 9.5 kW/t
- Heating Surface Equivalent
- 145.3 m²
- Cylinder volume/HSE
- 1 : 1,615.83
- Adhesive weight/Total
- 1 : 1.42
- Tractive force/Heating surface
- 1 : 7.60
- Grate area/Heating surface
- 1 : 63.33
- Firebox/Tube surface
- 1 : 9.62
