Data from Catalogue Descriptive of Simple and Compound Locomotives built by Brooks Locomotive Works, Dunkirk, NY (Buffalo, NY: Matthew-Northrup Company, 1899).
Builder info from B.Rumary, 25 Kingscombe, Gurney Slade, Radstock, BA3 4TH, ENGLAND and Jeremy Lambert as supplied by Allen Stanley in March 2004.
Works numbers were 2839-2840.
Low-drivered pair of Moguls with spark-arresting cabbage stack and sand and steam domes bunched close to the smokebox.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 1 |
| Locobase ID | 9625 |
| Railroad | Jalapa & Cordova |
| Country | Mexico |
| Whyte | 2-6-0 |
| Number in Class | 2 |
| Road Numbers | 1-2 |
| Gauge | 3' |
| Number Built | 2 |
| Builder | Brooks |
| Year | 1897 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 10.33 / 3.15 |
| Engine Wheelbase (ft / m) | 16.83 / 5.13 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.61 |
| Overall Wheelbase (engine & tender) (ft / m) | 40.25 / 12.27 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 56,000 / 25,401 |
| Engine Weight (lbs / kg) | 63,800 / 28,939 |
| Tender Loaded Weight (lbs / kg) | 50,000 / 22,680 |
| Total Engine and Tender Weight (lbs / kg) | 113,800 / 51,619 |
| Tender Water Capacity (gals / ML) | 1700 / 6.44 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.50 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 31 / 15.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 42 / 1067 |
| Boiler Pressure (psi / kPa) | 135 / 930 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 20" / 356x508 |
| Tractive Effort (lbs / kg) | 10,710 / 4857.98 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.23 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 148 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 8.17 / 2.49 |
| Firebox Area (sq ft / m2) | 83 / 7.71 |
| Grate Area (sq ft / m2) | 13.50 / 1.25 |
| Evaporative Heating Surface (sq ft / m2) | 718 / 66.73 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 718 / 66.73 |
| Evaporative Heating Surface/Cylinder Volume | 201.69 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1823 |
| Same as above plus superheater percentage | 1823 |
| Same as above but substitute firebox area for grate area | 11,205 |
| Power L1 | 3008 |
| Power MT | 355.26 |