Data from D F Holland, Steam Locomotives of the South African Railroads, Volume I: 1859-1910 (New York: Drake Publishers, 1972), p. 30. Branch-line engines, these were produced by both Avonside (works 1215-1216, 1235-1236) and Neilson Reid (2547-2552, 2557-2560).
They operated into the Union years (1910), being scrapped in 1913.
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | Class 01 |
| Locobase ID | 4906 |
| Railroad | South African Railways (SAR) |
| Country | South Africa |
| Whyte | 4-4-0 |
| Number in Class | 14 |
| Road Numbers | W25-W26, W33-W38, E8-E9,E11-E14 |
| Gauge | 3'6" |
| Number Built | 14 |
| Builder | several |
| Year | 1879 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 6.50 / 1.98 |
| Engine Wheelbase (ft / m) | 17.17 / 5.23 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.38 |
| Overall Wheelbase (engine & tender) (ft / m) | 33.33 / 10.16 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 18,032 / 8179 |
| Weight on Drivers (lbs / kg) | 35,868 / 16,269 |
| Engine Weight (lbs / kg) | 56,364 / 25,566 |
| Tender Loaded Weight (lbs / kg) | 37,796 / 17,144 |
| Total Engine and Tender Weight (lbs / kg) | 94,160 / 42,710 |
| Tender Water Capacity (gals / ML) | 2040 / 7.73 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2.80 / 3 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 30 / 15 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 130 / 9 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 18" / 356x457 |
| Tractive Effort (lbs / kg) | 8122 / 3684.08 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.42 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 120 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9.44 / 2.88 |
| Firebox Area (sq ft / m2) | 52 / 4.83 |
| Grate Area (sq ft / m2) | 10 / 0.93 |
| Evaporative Heating Surface (sq ft / m2) | 565 / 52.51 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 565 / 52.51 |
| Evaporative Heating Surface/Cylinder Volume | 176.17 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1300 |
| Same as above plus superheater percentage | 1300 |
| Same as above but substitute firebox area for grate area | 6760 |
| Power L1 | 2675 |
| Power MT | 328.84 |