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 Middle Run Media | |
|---|---|
| Class | 1 |
| Locobase ID | 9633 |
| Railroad | Transvaal & Delagoa Bay Collieries |
| Country | South Africa |
| Whyte | 0-4-0ST |
| Number in Class | 1 |
| Road Numbers | 1 |
| Gauge | 3'6" |
| Number Built | 1 |
| Builder | Brooks |
| Year | 1896 |
| Valve Gear | Stephenson |
| 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 wheelbase | 1 |
| 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) | |
| 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 / 1030 |
| 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 Volume | 179.73 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1170 |
| Same as above plus superheater percentage | 1170 |
| Same as above but substitute firebox area for grate area | 7350 |
| Power L1 | 2817 |
| Power MT | 295.73 |