Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 16, p. 205. Works number was 11625-11626 in February 1891.
This pair of tanks was almost certainly exported to the Agua Santa Nitrate & Railway.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 11721 |
| Railroad | Hemenway & Browne |
| Country | Chile |
| Whyte | 2-4-2ST |
| Number in Class | 2 |
| Road Numbers | |
| Gauge | Metre |
| Number Built | 2 |
| Builder | Burnham, Williams & Co |
| Year | 1891 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5 / 1.52 |
| Engine Wheelbase (ft / m) | 18.17 / 5.54 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.28 |
| Overall Wheelbase (engine & tender) (ft / m) | 18.17 / 5.54 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 30,000 / 13,608 |
| Engine Weight (lbs / kg) | 44,800 / 20,321 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 25 / 12.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 37 / 940 |
| Boiler Pressure (psi / kPa) | 130 / 900 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 11" x 16" / 279x406 |
| Tractive Effort (lbs / kg) | 5782 / 2622.67 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.19 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 96 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9 / 2.74 |
| Firebox Area (sq ft / m2) | 38 / 3.53 |
| Grate Area (sq ft / m2) | 8.70 / 0.81 |
| Evaporative Heating Surface (sq ft / m2) | 377 / 35.04 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 377 / 35.04 |
| Evaporative Heating Surface/Cylinder Volume | 214.22 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1131 |
| Same as above plus superheater percentage | 1131 |
| Same as above but substitute firebox area for grate area | 4940 |
| Power L1 | 2583 |
| Power MT | 379.64 |