Data from DeGolyer, Volume 57, pp. 311+. Works number was 49411 in July 1918.
Although built to the same specification as the Russian Mallets shown in Locobase 14398, this engine was not diverted from that order once the October Revolution broke out in November 1917 (it's a Julian-Gregorian calendar discrepancy). Pursuant to Extra Order #3500, Baldwin's Extra Work Department converted the locomotive's gauge from 3 foot, 6 inch (1,067 mm) to metre gauge and the firebox and tender to handle coal.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 1 |
| Locobase ID | 14399 |
| Railroad | Minas de Castillia la Viega y Jaen |
| Country | Spain |
| Whyte | 0-6-6-0 |
| Number in Class | 1 |
| Road Numbers | 1 |
| Gauge | Metre |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1918 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.58 / 2.62 |
| Engine Wheelbase (ft / m) | 25 / 7.62 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.34 |
| Overall Wheelbase (engine & tender) (ft / m) | 44.87 / 13.68 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 110,000 / 49,895 |
| Engine Weight (lbs / kg) | 110,000 / 49,895 |
| Tender Loaded Weight (lbs / kg) | 53,000 / 24,040 |
| Total Engine and Tender Weight (lbs / kg) | 163,000 / 73,935 |
| Tender Water Capacity (gals / ML) | 2200 / 8.33 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | / 5 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 31 / 15.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44 / 1118 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 22" / 330x559 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 19" x 22" / 483x559 |
| Tractive Effort (lbs / kg) | 17,612 / 7988.68 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 6.25 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 142 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 16 / 4.88 |
| Firebox Area (sq ft / m2) | 125 / 11.61 |
| Grate Area (sq ft / m2) | 19.30 / 1.79 |
| Evaporative Heating Surface (sq ft / m2) | 1308 / 121.52 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1308 / 121.52 |
| Evaporative Heating Surface/Cylinder Volume | 387.01 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3474 |
| Same as above plus superheater percentage | 3474 |
| Same as above but substitute firebox area for grate area | 22,500 |
| Power L1 | 3534 |
| Power MT | 424.97 |