Data from the Tyne and Wear Archives at [], last accessed 4 November 2018.. Works numbers were 2866-2868
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Huaral |
| Locobase ID | 20484 |
| Railroad | North Peru |
| Country | Peru |
| Whyte | 0-6-0T |
| Number in Class | 3 |
| Road Numbers | |
| Gauge | 3' |
| Number Built | 3 |
| Builder | Hawthorn Leslie |
| Year | 1910 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.50 / 2.59 |
| Engine Wheelbase (ft / m) | 8.50 / 2.59 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 8.50 / 2.59 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 54,589 / 24,761 |
| Engine Weight (lbs / kg) | 54,589 / 24,761 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 720 / 2.73 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 30 / 15 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 36.50 / 927 |
| Boiler Pressure (psi / kPa) | 165 / 1140 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12.5" x 18" / 318x457 |
| Tractive Effort (lbs / kg) | 10,807 / 4901.98 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.05 |
| 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) | 8 / 0.74 |
| Evaporative Heating Surface (sq ft / m2) | 456 / 42.36 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 456 / 42.36 |
| Evaporative Heating Surface/Cylinder Volume | 178.36 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1320 |
| Same as above plus superheater percentage | 1320 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |