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 #2731-2735, 2745-2764.
This large class followed an earlier batch from 1895 (works #2580-2584) as road #147-151. They had 20" x 24" cylinders and 56" drivers.
| Specifications | |
|---|---|
| Class | 162 |
| Locobase ID | 2890 |
| Railroad | Mexican Central (NdeM) |
| Whyte | 4-6-0 |
| Road Numbers | 162-186 |
| Gauge | Std |
| Builder | Brooks |
| Year | 1897 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase | 11' |
| Engine Wheelbase | 23.33' |
| Ratio of driving wheelbase to overall engine wheebase | 0.47 |
| Overall Wheelbase (engine & tender) | 51.33' |
| Axle Loading (Maximum Weight per Axle) | |
| Weight on Drivers | 111000 lbs |
| Engine Weight | 147500 lbs |
| Tender Light Weight | 85000 lbs |
| Total Engine and Tender Weight | 232500 lbs |
| Tender Water Capacity | 4500 gals |
| Tender Fuel Capacity (oil/coal) | 8.5 tons |
| Minimum weight per yard of rail on which locomotive could run | 61.67 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 60" |
| Boiler Pressure | 180 psi |
| Cylinders (dia x stroke) | 20" x 24" |
| Tractive Effort | 24480 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.53 |
| Heating Ability | |
| Firebox Area | 187.70 sq. ft |
| Grate Area | 26.10 sq. ft |
| Evaporative Heating Surface | 2032 |
| Superheating Surface | |
| Combined Heating Surface | 2032 |
| Evaporative Heating Surface/Cylinder Volume | 232.85 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4698 |
| Same as above plus superheater percentage | 4698 |
| Same as above but substitute firebox area for grate area | 33786 |
| Power L1 | 6127.10 |
| Power MT | 365.08 |
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