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 | |
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Class | unknown |
Locobase ID | 10248 |
Railroad | Dawsholm Gasworks |
Country | Great Britain |
Whyte | 0-4-0ST |
Number in Class | 1 |
Road Numbers | |
Gauge | 2' |
Number Built | 1 |
Builder | North British |
Year | 1912 |
Valve Gear | Stephenson |
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 wheelbase | 1 |
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 Volume | 283.07 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 257 |
Same as above plus superheater percentage | 257 |
Same as above but substitute firebox area for grate area | |
Power L1 | |
Power MT |