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North Wales Narrow Gauge “Moel Tryfan” and “Snowdon Ranger”
Great Britain | 1875 | 2 produced
“Moel Tryfan” on a works photo
“Moel Tryfan” on a works photo

The North Wales Narrow Gauge Railways, which opened in 1877, were built to the unusual one foot 11 1/2 inch gauge. Their first two locomotives were two Single Fairlies, that is, with a power bogie and a trailing bogie. In 1917 both were combined into one working locomotive due to their poor condition. From 1923 it belonged to the Welsh Highland Railway and it is unclear whether they also used it on the Furness Railway and reduced their height to do so. It was retired in 1937 and not refurbished after the Furness Railway reopened.

General
Built1875
ManufacturerVulcan
Axle config0-6-4T (Single Fairlie) 
Gauge1 ft 11 1/2 in (Narrow gauge)
Dimensions and Weights
Wheelbase14 ft 11 1/2 in
Fixed wheelbase3 ft 6 in
Service weight32,481 lbs
Adhesive weight23,521 lbs
Water capacity432 us gal
Fuel capacity1,344 lbs (coal)
Power
Power sourcesteam
Estimated power100 hp (75 kW)
Optimal speed16 mph
Starting effort4,012 lbf
Power Plant
Driver diameter30 in
Boiler pressure140 psi
Expansion typesimple
Cylinderstwo, 8 1/2 x 14 in
Boiler
Grate area6 sq ft
Firebox area37.5 sq ft
Tube heating area324.5 sq ft
Evaporative heating area362 sq ft
Total heating area362 sq ft
Calculated Values
steam locomotive
freight
passenger
narrow gauge
tank locomotive
single Fairlie
last changed: 03/2023
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