Dawsholm Gasworks 0-4-0 Locomotives in Great_Britain


Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 10248)

Data from the Industrial Railways Record correspondence file ([], last accessed 24 April 2009).

The author wrote to comment on a previous article on narrow-gauge gasworks locomotives and noted that the engine shown in Record 45 on p. 305 had also appeared in NBL's 1912 catalogue of narrow-gauge engines. His impulse in writing seems not just to offer additional information, but also to record the very tiny dimensions of a design that may have had the smallest water supply of any.

Locobase cannot establish positively that this was a saddle-tank, but the configuration was produced by NBL for industrial sites.

Principal Dimensions by Steve Llanso of Sweat House Media

Classunknown
Locobase ID10248
RailroadDawsholm Gasworks
CountryGreat Britain
Whyte0-4-0ST
Number in Class1
Road Numbers
Gauge2'
Number Built1
BuilderNorth British
Year1912
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 2.59 / 0.79
Engine Wheelbase (ft / m) 2.59 / 0.79
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m) 2.59 / 0.79
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)6777 / 3074
Engine Weight (lbs / kg)6777 / 3074
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)6777 / 3074
Tender Water Capacity (gals / ML)26 / 0.10
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)6 / 3
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)20 / 508
Boiler Pressure (psi / kPa)140.70 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)5.98" x 9.02" / 152x229
Tractive Effort (lbs / kg)1929 / 874.98
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.51
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2) 1.83 / 0.17
Evaporative Heating Surface (sq ft / m2)83 / 7.71
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)83 / 7.71
Evaporative Heating Surface/Cylinder Volume283.07
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation257
Same as above plus superheater percentage257
Same as above but substitute firebox area for grate area
Power L1
Power MT

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