Data from Record of Recent Construction #54 (Baldwin Locomotive Works, 1905), p. 26-27. See also DeGolyer, Volume 27, p. 279. Works numbers were 25997 and 26016 in July 1905.
According to Baldwin, this pair of six-coupled radial tanks (to use the British terminology) were intended for switching duties. Each was named - #1 as shown in the specs, #2 as Jose Ignacio Vergara. The design had an oversized cab and the firebox located behind the last driver; the trailing axle sat under the cab.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Jose Manuel Balmaceda |
| Locobase ID | 10986 |
| Railroad | FC Transandino Por Antuco (Chile) |
| Country | Argentina |
| Whyte | 0-6-2T |
| Number in Class | 12 |
| Road Numbers | 1-2 |
| Gauge | Metre |
| Number Built | 12 |
| Builder | Burnham, Williams & Co |
| Year | 1905 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.67 / 2.64 |
| Engine Wheelbase (ft / m) | 16.25 / 4.95 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.53 |
| Overall Wheelbase (engine & tender) (ft / m) | 16.25 / 4.95 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 41,000 / 18,597 |
| Engine Weight (lbs / kg) | 47,000 / 21,319 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 600 / 2.27 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 23 / 11.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44 / 1118 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12" x 18" / 305x457 |
| Tractive Effort (lbs / kg) | 8012 / 3634.19 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.12 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 62 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 12 / 3.66 |
| Firebox Area (sq ft / m2) | 52.80 / 4.91 |
| Grate Area (sq ft / m2) | 7.80 / 0.72 |
| Evaporative Heating Surface (sq ft / m2) | 439 / 40.80 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 439 / 40.80 |
| Evaporative Heating Surface/Cylinder Volume | 186.32 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1248 |
| Same as above plus superheater percentage | 1248 |
| Same as above but substitute firebox area for grate area | 8448 |
| Power L1 | 3501 |
| Power MT | 564.76 |