Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 65, p. 379. Works number was 54329 in January 1921.
This oil-burning plantation Consolidation was ordered for stock by the Foreign Orders Departement at Baldwin. Its likely destination was one of the many plantations in Cuba or Central America. Instead, the engine went to work for a metals processor in Nuevo Leon State in Mexico. The railway's profile didn't offer a significant challenge, its steepest grade of 2% ran for at most 300 metres (984 feet) and curves didn't exceed 8 degrees (minimum radii of 717 feet/219 metres)
According to Gene Connelly's list, the 2102 was taken into the Nacional de Mexico system in 1926 and given a new class ID (GR-26) and new number. Locobase cannot identify a later superheated locomotive in the NdeM that is quite as small as was the 2102. The only saturated-boiler locomotive that comes near to filling the bill was a single G-21, but that had a bigger boiler, firebox, and grate and pistons with 2" longer stroke.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 2102 |
| Locobase ID | 14988 |
| Railroad | Monterrey Iron & Steel (Acero Monterrey) |
| Country | Mexico |
| Whyte | 2-8-0 |
| Number in Class | 1 |
| Road Numbers | 2102 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1921 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 14.50 / 4.42 |
| Engine Wheelbase (ft / m) | 22 / 6.71 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.66 |
| Overall Wheelbase (engine & tender) (ft / m) | 51.75 / 15.77 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 119,300 / 54,114 |
| Engine Weight (lbs / kg) | 132,000 / 59,874 |
| Tender Loaded Weight (lbs / kg) | 112,500 / 51,029 |
| Total Engine and Tender Weight (lbs / kg) | 244,500 / 110,903 |
| Tender Water Capacity (gals / ML) | 5000 / 18.94 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2500 / 9463 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 50 / 25 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 50 / 1270 |
| Boiler Pressure (psi / kPa) | 170 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 24" / 508x610 |
| Tractive Effort (lbs / kg) | 27,744 / 12584.48 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.30 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 241 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 13 / 3.96 |
| Firebox Area (sq ft / m2) | 144 / 13.38 |
| Grate Area (sq ft / m2) | 30.30 / 2.82 |
| Evaporative Heating Surface (sq ft / m2) | 1774 / 164.87 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1774 / 164.87 |
| Evaporative Heating Surface/Cylinder Volume | 203.21 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5151 |
| Same as above plus superheater percentage | 5151 |
| Same as above but substitute firebox area for grate area | 24,480 |
| Power L1 | 4047 |
| Power MT | 299.15 |