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Ffestiniog Railway No. 11 “Earl of Merioneth”

Great Britain 1979 1 produced
March 2013 at Blaenau Ffestiniog, Gwynedd Peter Trimming CC BY 2.0

After the “Livingston Thompson” was the last original Ffestiniog Double Fairlie to be retired due to wear and tear in 1971, consideration was given to the continued operation of the railroad with this type of locomotive. Since rebuilding the locomotive would have required too much effort, the decision was made to completely build a new locomotive. This was one of the first times in history that a heritage railway had a steam locomotive built from scratch. Today there are several examples that follow the same pattern.

Since the locomotive, christened the “Earl of Merioneth”, had to complete everyday service on the tourist line, it was built with a few differences compared to its historical predecessors. The biggest difference was the significantly larger supplies, which should allow use without many intermediate stops. Oil was used as fuel to reduce the risk of forest fires due to sparks. Despite using refurbished bogies from older locomotives, it was able to haul trains with twelve cars and 500 passengers on a gradient of 1 in 80.

After many years in service, it was converted to coal-firing to reduce costs in view of the increased oil price. The chimneys had to be fitted with spark arrestors to further reduce the risk of fire. When the boiler ticket threatened to expire in 2018, the decision to make was similar to that in the 1970s. This time, too, the decision was made to let the ticket expire and to build a new locomotive with the name “James Spooner”. Today the “Earl of Merioneth” is on display at Boston Lodge.

Technical data

General

Built
1979
Manufacturers
Boston Lodge Works
Wheel arrangement
0-4-4-0T (Double Fairlie)
Gauge
597 mm

Dimensions and weights

Length
9.30 m
Service mass
40 t
Adhesion mass
40 t
Axle load
10 t

Power plant

Boiler pressure
10.7 bar
Expansion type
simple expansion
Cylinders
four, 229 x 356 mm

Power

Power source
steam

Calculated values

Adhesive weight/Total
1 : 1.00

Topics

  • steam locomotive
  • passenger
  • tank locomotive
  • double Fairlie
  • narrow gauge
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Last changed: 05/2022

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