Benguela 0-6-0 Locomotives in Angola


Class Details by Steve Llanso of Sweat House Media

Class Don Carlos I (Locobase 10510)

Data from "A Feat In Locomotive Building," The Locomotive Magazine, Vol XI (15 June 1905), p. 93. See also Peter Ball, "Benguela - More than just a current" posted 17 November 2015 on the South Africa Heritage Sector's Heritage Portal website at [link], last accessed 18 September 2021; and Harri Makinen et.al., "Comparison of the Growth of Six Eucalyptus Species in Angola", International Journal of Forestry Resarch, Volume 2011 | Article ID 980259 at [link], last accessed 9 March 2023. Works number was 847 in October 1904, 874-875 in May 1905.

The Benguela Railway was being built from Lobito to run due east to Katanga in what was then Tanganyika to extract the copper and exploit other resources. In fulfilling the order for small tank locomotives, Hunslet marshalled its forces and produced the Don Carlos I in 16 working days from receipt of the order. The author of the LM report noted that this was not a stock locomotive and that 40 new working drawings were required.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassDon Carlos I
Locobase ID10510
RailroadBenguela
CountryAngola
Whyte0-6-0T
Number in Class3
Road Numbers
Gauge3'6"
Number Built3
BuilderHunslet Engine Co
Year1904
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)11.50 / 3.51
Engine Wheelbase (ft / m)11.50 / 3.51
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)11.50 / 3.51
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)66,080 / 29,973
Engine Weight (lbs / kg)66,080 / 29,973
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)66,080 / 29,973
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)37 / 18.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)37 / 940
Boiler Pressure (psi / kPa)160 / 1100
High Pressure Cylinders (dia x stroke) (in / mm)14" x 18" / 356x457
Tractive Effort (lbs / kg)12,968 / 5882.19
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.10
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)11.25 / 1.05
Evaporative Heating Surface (sq ft / m2)580 / 53.90
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)580 / 53.90
Evaporative Heating Surface/Cylinder Volume180.85
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1800
Same as above plus superheater percentage1800
Same as above but substitute firebox area for grate area
Power L1
Power MT

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