Ffestiniog Railway No. 1 to 4 “Small England Class”
Great Britain 1863 4 produced
In 1863 and 1864 the Ffestiniog Railway received four small tank locomotives with an additional tender from George England. Up until this point, the line had been operated downhill by gravity and uphill by horses. Although initially locomotives were to be built with three driving axles, a design with only two driving axles was finally chosen. These initially had side tanks and later received a saddle tank. To distinguish them from the locomotives delivered by the same manufacturer in 1867, these are referred to as the “Small England Class”. Of these four locomotives, three are still preserved today, two of which are operational. A replica of the “Mountaineer” scrapped in 1879 is being built since 2020.
Technical data
General
- Built
- 1863-1864
- Manufacturers
- George England
- Wheel arrangement
- 0-4-0TT (Four-coupled)
- Gauge
- 597 mm
Dimensions and weights
- Wheelbase
- 1.37 m
- Service mass
- 8.1 t
- Adhesion mass
- 8.1 t
- Rigid wheelbase
- 1.37 m
- Axle load
- 4.1 t
- Water capacity
- 1,079 l
Boiler
- Grate area
- 0.372 m²
- Firebox surface
- 2.044 m²
- Tube heating surface
- 32.981 m²
- Evaporative heating surface
- 35.024 m²
- Total heating surface
- 35.0 m²
Power plant
- Driver diameter
- 610 mm
- Boiler pressure
- 9.7 bar
- Expansion type
- simple expansion
- Cylinders
- two, 203 x 305 mm
Power
- Power source
- steam
- Estimated power
- 52 kW (71 PS)
- Starting effort
- 16.9 kN
Calculated values
- Factor of adhesion
- 1 : 4.71
- Optimal speed
- 19 km/h
- Power-to-weight ratio
- 6.4 kW/t
- Heating Surface Equivalent
- 45.2 m²
- Cylinder volume/HSE
- 1 : 436.93
- Adhesive weight/Total
- 1 : 1.00
- Tractive force/Heating surface
- 1 : 10.10
- Grate area/Heating surface
- 1 : 94.15
- Firebox/Tube surface
- 1 : 16.14