Data from D F Holland, Steam Locomotives of the South African Railroads, Volume I: 1859-1910 (New York: Drake Publishers, 1972), p. 29. Works numbers were 1571-1580. Also see [] comes the account of these Mogul tender engines.
Obviously very small engines, these only hinted at the powerful narrow-gaugers to come; later engines with inclined cylinders appear in Locobase 12866. According to Holland, the class proved quite versatile, seeing service "...on all parts of the Western systems from Cape Town right up into the Karoo and, while considered as goods locomotives, were used on all classes of traffic, as well as shunting.
At Union (1910), this class was grouped with several other odds and ends under the Class 01 heading.
Data from D F Holland, Steam Locomotives of the South African Railroads, Volume I: 1859-1910 (New York: Drake Publishers, 1972), p. 29. Works numbers were 1844-1849, 2026-2027, and 2039-2040.
Essentially repeats of the 1875 Beyers, this class had inclined cylinders and very slightly longer tubes.
Data from D F Holland, Steam Locomotives of the South African Railroads, Volume I: 1859-1910 (New York: Drake Publishers, 1972), p. 29. Works numbers were 1844-1849, 2026-2027, and 2039-2040.
Essentially repeats of the 1875 Beyers, this class had inclined cylinders and very slightly longer tubes.
| Principal Dimensions by Steve Llanso of Middle Run Media | |||
|---|---|---|---|
| Class | Class 01 | Class 01 | Class 01 |
| Locobase ID | 4905 | 20239 | 12866 |
| Railroad | Cape Government | Cape Government | Cape Government |
| Country | South Africa | South Africa | South Africa |
| Whyte | 2-6-0 | 2-6-0 | 2-6-0 |
| Number in Class | 10 | 8 | 10 |
| Road Numbers | W7-W16 | M17-M24 | W27-W32, W39-W42 |
| Gauge | 3'6" | 3'6" | 3'6" |
| Number Built | 10 | 8 | 10 |
| Builder | Beyer, Peacock | Kitson & Co | Beyer, Peacock |
| Year | 1875 | 1876 | 1879 |
| Valve Gear | Stephenson | Stephenson | Stephenson |
| Locomotive Length and Weight | |||
| Driver Wheelbase (ft / m) | 7.17 | 7.17 / 2.19 | 7.17 / 2.19 |
| Engine Wheelbase (ft / m) | 10.75 | 10.75 / 3.28 | 10.75 / 3.28 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.67 | 0.67 | 0.67 |
| Overall Wheelbase (engine & tender) (ft / m) | 37.67 / 11.48 | 37.67 / 11.48 | 37.67 / 11.48 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 12,544 / 5625 | 11,928 / 5410 | 11,928 / 5410 |
| Weight on Drivers (lbs / kg) | 36,624 | 35,980 / 16,320 | 35,980 / 16,320 |
| Engine Weight (lbs / kg) | 44,968 / 20,412 | 45,444 / 20,613 | 45,444 / 20,613 |
| Tender Loaded Weight (lbs / kg) | 39,984 | 39,984 / 18,136 | 39,984 / 18,136 |
| Total Engine and Tender Weight (lbs / kg) | 84,952 | 85,428 / 38,749 | 85,428 / 38,749 |
| Tender Water Capacity (gals / ML) | 2040 | 2040 / 7.73 | 2040 / 7.73 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2.80 | 2.80 / 3 | 2.80 / 3 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 20 / 10 | 20 / 10 | 20 / 10 |
| Geometry Relating to Tractive Effort | |||
| Driver Diameter (in / mm) | 39 / 991 | 39 / 991 | 39 / 991 |
| Boiler Pressure (psi / kPa) | 130 / 900 | 140 / 970 | 130 / 900 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12" x 20" / 305x508 | 12" x 20" / 305x508 | 12" x 20" / 305x508 |
| Tractive Effort (lbs / kg) | 8160 / 3701.32 | 8788 / 3986.17 | 8160 / 3701.32 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.49 | 4.09 | 4.41 |
| Heating Ability | |||
| Tubes (number - dia) (in / mm) | 116 - 1.75" / 0 | 116 - 1.75" / 44 | |
| Flues (number - dia) (in / mm) | |||
| Flue/Tube length (ft / m) | 9.44 | 9.56 / 2.91 | 9.56 / 2.91 |
| Firebox Area (sq ft / m2) | 44 | 49 / 4.55 | 44 / 4.09 |
| Grate Area (sq ft / m2) | 9.50 / 0.88 | 10 / 0.93 | 9.50 / 0.88 |
| Evaporative Heating Surface (sq ft / m2) | 536 / 49.81 | 532 / 49.42 | 545 / 50.65 |
| Superheating Surface (sq ft / m2) | |||
| Combined Heating Surface (sq ft / m2) | 536 / 49.81 | 532 / 49.42 | 545 / 50.65 |
| Evaporative Heating Surface/Cylinder Volume | 204.74 | 203.21 | 208.17 |
| Computations Relating to Power Output (More Information) | |||
| Robert LeMassena's Power Computation | 1235 | 1400 | 1235 |
| Same as above plus superheater percentage | 1235 | 1400 | 1235 |
| Same as above but substitute firebox area for grate area | 5720 | 6860 | 5720 |
| Power L1 | 2440 | 2701 | 2469 |
| Power MT | 440.64 | 496.50 | 453.85 |