Data from "Railway Notes - Soudan [sic] Government Rys," The Locomotive Magazine, Vol X (15 April 1909), p. 63; and "Sudan Government Railways Type 2-6-0", Locomotives Constructed by Kitson & Co,. Ltd (Leeds: n.d.) . . Works numbers were 4619-4623 in 1908.
This rather powerful design for a Cape Gauge Mogul had many North American features including compensating beams (rarely used in British practice), a cowcatcher, two 4-wheel bogies under the tender, and cab-front doors on either side of the firebox opening to the running board. Only the upright capped stack, polished dome, and Kitson's Belpaire firebox betray the quintet's origins.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 22, p.47. Works numbers were 16475-16477 in January 1899, 18146-18148 in September 1900, and 18493-18497 in December.
Like the Eight-wheelers of 1898 (Locobase 12261), the Moguls in this order had names: Gedaref 40, Sobat 41, Rosairais 42, Cedid 43, Kordonfan 44, Abalodeh 45, Bisharin 46, Joalin 47, Kababish 48, Dinka 49, Shilluk 50.
Maximum grade for the line on which they would run was 42 ft/mile (7.95 m/km) . Their copper fireboxes were designed to burn small Welsh coal and "afterwards oil." So Baldwin shipped an oil tank for each engine that would carry 1,700 US gallons (917 Imperial gallons; 6,4345 litres). A separate note added that the tires on the drivers should be "extra hard on account of sand."
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | 100 | Gedaref/Class 40 |
Locobase ID | 10700 | 12325 |
Railroad | Sudan Railway | Sudan Railway |
Country | Sudan | Sudan |
Whyte | 2-6-0 | 2-6-0 |
Number in Class | 5 | 3 |
Road Numbers | 100-104 | 40-50 |
Gauge | 3'6" | 3'6" |
Number Built | 5 | 3 |
Builder | Kitson & Co | Burnham, Williams & Co |
Year | 1908 | 1899 |
Valve Gear | Walschaert | Stephenson |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 11.75 | 11.50 / 3.51 |
Engine Wheelbase (ft / m) | 19.25 / 5.87 | 18.83 / 5.74 |
Ratio of driving wheelbase to overall engine wheelbase | 0.61 | 0.61 |
Overall Wheelbase (engine & tender) (ft / m) | 45.59 | 45.29 / 13.80 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
Weight on Drivers (lbs / kg) | 73,248 | 74,500 / 33,793 |
Engine Weight (lbs / kg) | 87,136 / 43,690 | 86,800 / 39,372 |
Tender Loaded Weight (lbs / kg) | 96,768 / 39,524 | 79,200 / 35,925 |
Total Engine and Tender Weight (lbs / kg) | 183,904 / 83,214 | 166,000 / 75,297 |
Tender Water Capacity (gals / ML) | 4200 / 13.64 | 3600 / 13.64 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 8.80 / 8 | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 41 / 20.50 | 41 / 20.50 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 51 / 1295 | 48 / 1219 |
Boiler Pressure (psi / kPa) | 180 / 1240 | 160 / 1100 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16.5" x 22" / 419x559 | 17" x 22" / 432x559 |
Tractive Effort (lbs / kg) | 17,969 / 8150.61 | 18,014 / 8171.02 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.08 | 4.14 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 169 - 2.69" / 68 | 182 - 2" / 51 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 8.08 | 10.52 / 3.21 |
Firebox Area (sq ft / m2) | 107 | 100.83 / 9.37 |
Grate Area (sq ft / m2) | 17 | 16.66 / 1.55 |
Evaporative Heating Surface (sq ft / m2) | 1072 | 1092 / 101.45 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 1072 | 1092 / 101.45 |
Evaporative Heating Surface/Cylinder Volume | 196.89 | 188.94 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 3060 | 2666 |
Same as above plus superheater percentage | 3060 | 2666 |
Same as above but substitute firebox area for grate area | 19,260 | 16,133 |
Power L1 | 4516 | 3535 |
Power MT | 407.77 | 313.83 |