Data from "Nasmyth's Centenary", Engineer, Volume 106 (25 September 1908), pp. 316.
The Engineer report included a photograph showing 30 years of progress in metre-gauge locomotive design. This was the earlier, quite small, tank engine. Some of the class were still in service in 1908, one of which headed passenger trains on the Rohilkund and Kumaon branch line to Lucknow.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 20886 |
| Railroad | North Western Province |
| Country | India |
| Whyte | 0-4-2T |
| Number in Class | |
| Road Numbers | |
| Gauge | Metre |
| Number Built | |
| Builder | Nasmyth Wilson |
| Year | 1875 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | 11 / 3.35 |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | 11 / 3.35 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 22,400 / 10,160 |
| Engine Weight (lbs / kg) | 30,576 / 13,869 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 30,576 / 13,869 |
| Tender Water Capacity (gals / ML) | 360 / 1.36 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 19 / 9.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 30 / 762 |
| Boiler Pressure (psi / kPa) | 140 / 970 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 9" x 14" / 229x356 |
| Tractive Effort (lbs / kg) | 4498 / 2040.26 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.98 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 70 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9 / 2.74 |
| Firebox Area (sq ft / m2) | 25.40 / 2.36 |
| Grate Area (sq ft / m2) | 5.80 / 0.54 |
| Evaporative Heating Surface (sq ft / m2) | 273 / 25.36 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 273 / 25.36 |
| Evaporative Heating Surface/Cylinder Volume | 264.83 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 812 |
| Same as above plus superheater percentage | 812 |
| Same as above but substitute firebox area for grate area | 3556 |
| Power L1 | 2716 |
| Power MT | 534.62 |