Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 10, p. 44. See also Martin Coombs, Part 6: Ecuadorian steam locomotive list from his Railways of the Far South series, v.1.24 (March 2026) on the web at [], last accessed 7 March 2026. Works number was 5256 in August 1880.
Since the small Mogul's name commemorated the day (8 September) that General Ventimillia seized power and that autocrat fell out of power in 1884, Martin Coombs suggests, perhaps the engine bore a different name afterward. Coombs cites Copeland when noting that a boiler in poor repair sidelined the 4 in 1893.
Back in service in 1894, the 4 derailed when it hit a horse that jumped across the track just as the locomotive came along. The accident caused a 2-day paralysis of traffic between Yaguachi and Chimbo. 4 still appeared on the roster ten years later.
Coombs reports that records suggest that the 4 wound up first on the Guayaquil a Quito, its gauge widened to the Cape Gauge, then transferred in 1910 to the FFCC de El Oro.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Ocho de Septiembre |
| Locobase ID | 11779 |
| Railroad | FC del Sur |
| Country | Ecuador |
| Whyte | 2-6-0 |
| Number in Class | 1 |
| Road Numbers | 4 |
| Gauge | 3' |
| Number Built | 1 |
| Builder | Burnham, Parry, Williams & Co |
| Year | 1880 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 12 / 3.66 |
| Engine Wheelbase (ft / m) | 18 / 5.49 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.67 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 45,000 / 20,412 |
| Engine Weight (lbs / kg) | 52,000 / 23,587 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 1600 / 6.06 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 25 / 12.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 37 / 940 |
| Boiler Pressure (psi / kPa) | 130 / 900 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 18" / 356x457 |
| Tractive Effort (lbs / kg) | 10,536 / 4779.05 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.27 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 154 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 8.44 / 2.57 |
| Firebox Area (sq ft / m2) | 53 / 4.93 |
| Grate Area (sq ft / m2) | 12.50 / 1.16 |
| Evaporative Heating Surface (sq ft / m2) | 640 / 59.48 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 640 / 59.48 |
| Evaporative Heating Surface/Cylinder Volume | 199.56 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1625 |
| Same as above plus superheater percentage | 1625 |
| Same as above but substitute firebox area for grate area | 6890 |
| Power L1 | 2262 |
| Power MT | 332.46 |