Transvaal & Delagoa Bay Collieries 0-4-0 Locomotives in South_Africa

Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 9633)

Data from Catalogue Descriptive of Simple and Compound Locomotives built by Brooks Locomotive Works, Dunkirk, NY (Buffalo, NY: Matthew-Northrup Company, 1899). Works number was 2725. Builder info from B.Rumary, 25 Kingscombe, Gurney Slade, Radstock, BA3 4TH, ENGLAND and Jeremy Lambert as supplied by Allen Stanley in March 2004. Career information and photos at Leith Paxton & David Bourne (eds), [], last accessed 14 April 2009.

Pieter Conradie posted the photos and captions for Brooks 2725 in the blog mentioned above: After some time at the T&DB collieries near Witbank, this engine was moved to the City of Cape Town Corporation and operated as a dock switcher (shunter). Its number plate had a 4 in the center surrounded first by "Dock Rd Power Station" then, farther out, "Dyna-Mo Cape Town Electricity"

2725's next life could be described either as demeaning or rejuvenating; a look at the pictures suggests the latter. After its operating career was over, the 4 was plinthed in a children's playground in Claremont. Well-scaled for little kids to pretend on and in, the locomotive received a set of wide steps leading to the cab. The engine was painted in a subtly systematic variation by bright colors: The boiler and cab a jolly green; its wheels and brakes a soft purple; the valve gear and cylinders, coupler, springs, domes, and stack an orangey-red, and its saddle tank and water-feed pipes and buffer beam a wholesome-sky blue.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID9633
RailroadTransvaal & Delagoa Bay Collieries
CountrySouth Africa
Number in Class1
Road Numbers1
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 5.67 / 1.73
Engine Wheelbase (ft / m) 5.67 / 1.73
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m) 5.67 / 1.73
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)42,000 / 19,051
Engine Weight (lbs / kg)42,000 / 19,051
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)42,000 / 19,051
Tender Water Capacity (gals / ML)600 / 2.27
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)1 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)35 / 17.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 1067
Boiler Pressure (psi / kPa)150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)13" x 18" / 330x457
Tractive Effort (lbs / kg)9235 / 4188.93
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.55
Heating Ability
Tubes (number - dia) (in / mm)96 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)9 / 2.74
Firebox Area (sq ft / m2)49 / 4.55
Grate Area (sq ft / m2) 7.80 / 0.72
Evaporative Heating Surface (sq ft / m2)497 / 46.19
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)497 / 46.19
Evaporative Heating Surface/Cylinder Volume179.73
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1170
Same as above plus superheater percentage1170
Same as above but substitute firebox area for grate area7350
Power L12817
Power MT295.73

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