Data from "Tank Frame Locomotives", Record of Recent Construction #93 (Baldwin Locomotive Works, 1918), p.7. See also DeGolyer, Vol 63, pp. 75+. Works number was 47586 in January 1918.
In the introduction to this edition of the Record, Baldwin explains that a "tank-frame" locomotive used its deep plate steel frame to form the sides of the water tank. This brought the center of gravity considerably lower on narrow-gauge track laid on lightly prepared ballast. Indeed, the underlying requirement for these engines was that they be of "...simple design and strong construction, suitable for operation on rough tracks and sharp curves, and have easily accessible working parts."
Like the H E Oving, Jr purchase of 3 months earlier (Locobase 10998), this wood-burner had a modified Marshall-design valve gear and onion-shaped spark arresting Radley & Hunter stack to reduce the fire risk. Track rating was 26 lb/yd (13 kg/metre) rail and 49-ft (15-m) curve radii for plantation work. It differed only in weight from the HE Oving engine, being 500 lb lighter while carrying 12 more gallons of water. Locobase cannot determine in which country in Africa this locomotive operated.
These little industrial tanks offered a great contrast to the huge articulated locomotives being built at Baldwin in the same period.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 10996 |
| Railroad | Jayme Arthur Marques |
| Country | Mozambique |
| Whyte | 0-4-0WT |
| Number in Class | 1 |
| Road Numbers | |
| Gauge | 60 cm |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1918 |
| Valve Gear | Marshall |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 3 / 0.91 |
| Engine Wheelbase (ft / m) | 3 / 0.91 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 3 / 0.91 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 11,900 / 5398 |
| Engine Weight (lbs / kg) | 11,900 / 5398 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 114 / 0.43 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 10 / 5 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 22 / 559 |
| Boiler Pressure (psi / kPa) | 176 / 1210 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 6" x 10" / 152x254 |
| Tractive Effort (lbs / kg) | 2448 / 1110.40 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.86 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 32 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 5.33 / 1.62 |
| Firebox Area (sq ft / m2) | 13 / 1.21 |
| Grate Area (sq ft / m2) | 2.80 / 0.26 |
| Evaporative Heating Surface (sq ft / m2) | 90 / 8.36 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 90 / 8.36 |
| Evaporative Heating Surface/Cylinder Volume | 275.02 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 493 |
| Same as above plus superheater percentage | 493 |
| Same as above but substitute firebox area for grate area | 2288 |
| Power L1 | 3057 |
| Power MT | 1132.69 |