Enyati Collieries 2-10-2 Locomotives in South_Africa
Class Details by Steve Llanso of Sweat House Media
Class 3 (Locobase 5405)
Found in the [
] holding of Baldwin narrow-gauge export locomotives (visited 22 Feb 2003). See also DeGolyer, Vol 72, pp. 392 and Vol 79, pp. 571+. Works numbers were 58046 in September 1924 and 61949 in 1936.
This locomotive is very similar to the 2-10-2T built for the Northern Natal Navigation Collieries (Locobase 2349). It has a lower boiler pressure and smaller heating surface totals, but overall, there's not much difference. Most of the accessories followed British practice (Ramsbottom safety valves, for example) and the firebox was made of arsenical copper. Ten-inch (254 mm) piston valves supplied steam to the cylinders.
Baldwin's specification shows that the two had only modest grades of 1 1/2% to conquer and relatively generous curves with radii of 500 feet (152.4 metres).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 3 |
| Locobase ID | 5405 |
| Railroad | Enyati Collieries |
| Country | South Africa |
| Whyte | 2-10-2T |
| Number in Class | 2 |
| Road Numbers | 3, 4 |
| Gauge | 3'6" |
| Number Built | 2 |
| Builder | Baldwin |
| Year | 1924 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 15.33 / 4.67 |
| Engine Wheelbase (ft / m) | 29.58 / 9.02 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.52 |
| Overall Wheelbase (engine & tender) (ft / m) | 29.58 / 9.02 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 134,350 / 60,940 |
| Engine Weight (lbs / kg) | 172,850 / 78,404 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 2200 / 8.33 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3 / 3 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 45 / 22.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 42 / 1067 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 19" x 24" / 483x610 |
| Tractive Effort (lbs / kg) | 31,562 / 14316.30 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.26 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 120 - 2" / 51 |
| Flues (number - dia) (in / mm) | 20 - 5.375" / 137 |
| Flue/Tube length (ft / m) | 14.67 / 4.47 |
| Firebox Area (sq ft / m2) | 95 / 8.83 |
| Grate Area (sq ft / m2) | 24.80 / 2.30 |
| Evaporative Heating Surface (sq ft / m2) | 1421 / 132.01 |
| Superheating Surface (sq ft / m2) | 344 / 31.96 |
| Combined Heating Surface (sq ft / m2) | 1765 / 163.97 |
| Evaporative Heating Surface/Cylinder Volume | 180.43 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4464 |
| Same as above plus superheater percentage | 5312 |
| Same as above but substitute firebox area for grate area | 20,349 |
| Power L1 | 7986 |
| Power MT | 655.23 |