Data from "Tank Locomotive", Engineering, Volume 44 (9 September 1887), pp. 273, 276-277. Works numbers were 857-858 in August 1885, 862 in January 1886, and 873-875 in July 1886.
BGS's contractor James Perry & Company ordered this sextet of tank locomotives to support the railway's construction, and then provide early motive power for the railway. All had names: 2 bore Ibicuha, followed by Itaqui, [no name], Touro Passo, and Tiabitocay.
To conform with Brazilian practice, these fairly typical British tanks were fitted with large cowcatchers (called in the British press 'guards") at both ends of each locomotive, a large headlight, and an "alarum" [sic] bell.
Engineering noted the Janney patent automatic coupler and buffer. Observing its increasing acceptance in the United States, Engineering reported that its design sought "to obviate the necessity for men going between the vehicles to couple or uncouple the train, a fertile causee of accidents to life and limb, as a reference to the Board of Trade returns in this [Great Britain] country will show."
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Uruguayana |
| Locobase ID | 13303 |
| Railroad | Great Southern |
| Country | Brazil |
| Whyte | 4-4-0T |
| Number in Class | 6 |
| Road Numbers | 1-6 |
| Gauge | Metre |
| Number Built | 6 |
| Builder | Black, Hawthorn |
| Year | 1886 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5.73 / 1.75 |
| Engine Wheelbase (ft / m) | 15.56 / 4.74 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.37 |
| Overall Wheelbase (engine & tender) (ft / m) | 15.56 / 4.74 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 40,320 / 18,289 |
| Engine Weight (lbs / kg) | 53,760 / 24,385 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 53,760 / 24,385 |
| Tender Water Capacity (gals / ML) | 3600 / 13.64 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 10 / 9 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 34 / 17 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 42 / 1067 |
| Boiler Pressure (psi / kPa) | 140 / 970 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 20" / 330x508 |
| Tractive Effort (lbs / kg) | 9577 / 4344.06 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.21 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 53.50 / 4.97 |
| Grate Area (sq ft / m2) | 8 / 0.74 |
| Evaporative Heating Surface (sq ft / m2) | 446 / 41.43 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 446 / 41.43 |
| Evaporative Heating Surface/Cylinder Volume | 145.16 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1120 |
| Same as above plus superheater percentage | 1120 |
| Same as above but substitute firebox area for grate area | 7490 |
| Power L1 | 2276 |
| Power MT | 248.89 |