Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 78, p.425. Works number was 59204 in May 1926.
Most of the smaller Baldwin engines were manufactured to stock patterns within a few wheel arrangements. So this locomotive is distinctive. Its six-coupled. rear-truck-only with tender was unusual even for that wheel arrangement.
It was procured for the line which lay between Xai Xai and Freire de Andrade. Other sources say the line connected Villa de JoSo Belo and Chicomo and was 140 km (87 miles) long. Wherever it ran, the 3 had maximum grades of 1.85% to climb and relatively gentle curve radii of 150 metres (492 feet).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 4 |
| Locobase ID | 15411 |
| Railroad | Gaza |
| Country | Mozambique |
| Whyte | 0-6-2 |
| Number in Class | 1 |
| Road Numbers | 4 |
| Gauge | 75 cm |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1926 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.50 / 2.29 |
| Engine Wheelbase (ft / m) | 14.50 / 4.42 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.52 |
| Overall Wheelbase (engine & tender) (ft / m) | 33.31 / 10.15 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 15,432 / 7000 |
| Weight on Drivers (lbs / kg) | 46,000 / 20,865 |
| Engine Weight (lbs / kg) | 53,000 / 24,040 |
| Tender Loaded Weight (lbs / kg) | 42,000 / 19,051 |
| Total Engine and Tender Weight (lbs / kg) | 95,000 / 43,091 |
| Tender Water Capacity (gals / ML) | 1850 / 7.01 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.30 / 3 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 26 / 13 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 37 / 940 |
| Boiler Pressure (psi / kPa) | 165 / 1140 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 18" / 330x457 |
| Tractive Effort (lbs / kg) | 11,531 / 5230.38 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.99 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 109 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.58 / 3.53 |
| Firebox Area (sq ft / m2) | 53 / 4.92 |
| Grate Area (sq ft / m2) | 11.20 / 1.04 |
| Evaporative Heating Surface (sq ft / m2) | 709 / 65.87 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 709 / 65.87 |
| Evaporative Heating Surface/Cylinder Volume | 256.40 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1848 |
| Same as above plus superheater percentage | 1848 |
| Same as above but substitute firebox area for grate area | 8745 |
| Power L1 | 3584 |
| Power MT | 515.31 |