Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 49,p. 91. Works numbers were 39193-39194 in January 1913.
Seems only logical that these two little Moguls would be powered by nearly crude oil. The company that bought them was founded by Edward Doheny, a rags-to-riches-to-Teapot Dome Scandal oilman. Doheny already owned California-based Petroleum Development Company when he formed the Mexican Petroleum Company in 1900. He later expanded into the Tuxpan district and set up the Huasteca Petroleum Company. At the time, Pemex claimed 925 sq miles (600,000 acres) in a country where oil finds were described as "flush", i.e., the petroleum spurted out of the wells under its own pressure.
During the 10-year Mexican Revolution, Doheny's 6,000-man private army defended Pemex installations from all combatants. Pemex gathered another 1,234 sq miles (800,000 acres) as Doheny created a holding company (PanAmerican and outstripped all other oil companies in Mexico.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 5 |
Locobase ID | 14184 |
Railroad | Mexican Petroleum |
Country | Mexico |
Whyte | 2-6-0 |
Number in Class | 2 |
Road Numbers | 5-6 |
Gauge | 3' |
Number Built | 2 |
Builder | Baldwin |
Year | 1913 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 13.42 / 4.09 |
Engine Wheelbase (ft / m) | 19.92 / 6.07 |
Ratio of driving wheelbase to overall engine wheelbase | 0.67 |
Overall Wheelbase (engine & tender) (ft / m) | 42.87 / 13.07 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 52,000 / 23,587 |
Engine Weight (lbs / kg) | 64,000 / 29,030 |
Tender Loaded Weight (lbs / kg) | 50,000 / 22,680 |
Total Engine and Tender Weight (lbs / kg) | 114,000 / 51,710 |
Tender Water Capacity (gals / ML) | 2500 / 9.47 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1000 / 3785 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 29 / 14.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 40 / 1016 |
Boiler Pressure (psi / kPa) | 160 / 1100 |
High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 20" / 356x508 |
Tractive Effort (lbs / kg) | 13,328 / 6045.49 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.90 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 156 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 9.04 / 2.76 |
Firebox Area (sq ft / m2) | 74.70 / 6.94 |
Grate Area (sq ft / m2) | 9.80 / 0.91 |
Evaporative Heating Surface (sq ft / m2) | 806 / 74.91 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 806 / 74.91 |
Evaporative Heating Surface/Cylinder Volume | 226.40 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 1568 |
Same as above plus superheater percentage | 1568 |
Same as above but substitute firebox area for grate area | 11,952 |
Power L1 | 3534 |
Power MT | 449.49 |