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The reference for locomotives and railcars

Ffestiniog Railway No. 1 to 4 “Small England Class”

Great Britain 1863 4 produced
No. 4 “Palmerston” in May 2013 Peter Trimming CC BY 2.0

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.

No. 1 "The Princess" as built with side tanks Festiniog Railway Archives / PD

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

Topics

  • steam locomotive
  • narrow gauge
  • tank locomotive
  • tank and tender
  • freight
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Last changed: 07/2023

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