North Wales Narrow Gauge Railways 2-6-2 Locomotives in Great_Britain

Class Details by Steve Llanso of Sweat House Media

Class Russell (Locobase 4822)

Data from "New Locomotives on the North Wales Narrow Gauge Railway", The Locomotive Magazine, Vol XV (15 January 1909), p. 17.

Bought by the Portmadoc, Beddgelert & South Snowdon Railway to run on the NWNGR, this engine replaced the 0-6-4ST Beddgelert. Alun Turner's account of the NWNGR and its successor the Welsh Highland Railway (found on []..) It's a smaller engine than the Beddgelert, but with smaller drivers it put out the most tractive effort of any of the NWNGR engines. Unlike the others of this railway, the Russell still runs.

[] shows a cylinder size of 11" x 15", but a lower TE at 85%.

See [] (23 May 2004) for an account of Russell's origins and career.

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID4822
RailroadNorth Wales Narrow Gauge Railways
CountryGreat Britain
Number in Class1
Road Numbers
Gauge60 cm
Number Built1
BuilderHunslet Engine Co
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 5.50 / 1.68
Engine Wheelbase (ft / m)15.50 / 4.72
Ratio of driving wheelbase to overall engine wheelbase 0.35
Overall Wheelbase (engine & tender) (ft / m)15.50 / 4.72
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)44,800 / 20,321
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)44,800 / 20,321
Tender Water Capacity (gals / ML)528 / 2
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) / 7
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)28 / 711
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)10.75" x 15" / 273x381
Tractive Effort (lbs / kg)8420 / 3819.25
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)97 - 1.625" / 41
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)36 / 3.35
Grate Area (sq ft / m2) 6.25 / 0.58
Evaporative Heating Surface (sq ft / m2)381 / 35.41
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)381 / 35.41
Evaporative Heating Surface/Cylinder Volume241.79
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1000
Same as above plus superheater percentage1000
Same as above but substitute firebox area for grate area5760
Power L12658
Power MT

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