Data from NdeM 1926ca Locomotive Diagrams supplied in December 2010 by Allen Stanley. See also DeGolyer, Volume 15, p. 168. Works numbers were 10282-10283 in September 1889.
Although serving a rural agricultural railway, this Mogul pair was of about average size for North American standard-gauge 2-6-0s of the time. When delivered, they were named Motzorongo and Josefina.
The Porfirist general Carlos Pacheco built the line in 1882 to connect his plantation (Josefina) at Motzorongo with Cordoba. In 1892, the railway ran 42 km (25 miles) between Cordoba and Motzorongo and completing the journey in 2 hours.
In 1898, General Pacheco's hacienda was bought by the Vera Cruz al Pacifico, a North American company and the two Moguls were renumbered 3 and 4. In 1904, the Mexican government gained control of the VC al P and reorganized it, renaming the result Vera Cruz al Istmo. This line connected the Caribbean with the Pacific with only 200 km (120 miles) or railway.
After the 1908 nationalization and the assumption of complete control by the Nacional de Mexico (NdeM) in 1913, the 3 and 4 were renumbered 650-651.
Wes Barris's surviving locomotives page of his steamlocomotive.com website ([]) notes that the surviving 650 was being restored in Valle de Mexico shops of Alstom's Mexican subsidiary at Tlalnepantla, Mex.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Motzorongo / E-1 |
| Locobase ID | 11922 |
| Railroad | FC Agricola - Cordoba a Motzorongo y Rio Tinto |
| Country | Mexico |
| Whyte | 2-6-0 |
| Number in Class | 2 |
| Road Numbers | 2-3/3-4/650-651 |
| Gauge | Std |
| Number Built | 2 |
| Builder | Burnham, Parry, Williams & Co |
| Year | 1889 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 14.25 / 4.34 |
| Engine Wheelbase (ft / m) | 21.58 / 6.58 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.66 |
| Overall Wheelbase (engine & tender) (ft / m) | 44.75 / 13.64 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 74,090 / 33,607 |
| Engine Weight (lbs / kg) | 88,202 / 40,008 |
| Tender Loaded Weight (lbs / kg) | 55,127 / 25,005 |
| Total Engine and Tender Weight (lbs / kg) | 143,329 / 65,013 |
| Tender Water Capacity (gals / ML) | 2378 / 9.01 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1038 / 3929 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 41 / 20.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 51 / 1295 |
| Boiler Pressure (psi / kPa) | 130 / 900 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 24" / 432x610 |
| Tractive Effort (lbs / kg) | 15,028 / 6816.59 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.93 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 182 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 13 / 3.96 |
| Firebox Area (sq ft / m2) | 73.65 / 6.84 |
| Grate Area (sq ft / m2) | 14.75 / 1.37 |
| Evaporative Heating Surface (sq ft / m2) | 1312 / 121.93 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1312 / 121.93 |
| Evaporative Heating Surface/Cylinder Volume | 207.92 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1918 |
| Same as above plus superheater percentage | 1918 |
| Same as above but substitute firebox area for grate area | 9575 |
| Power L1 | 2942 |
| Power MT | 262.63 |