Data from "Double End Saddle Tank Locomotive", Railroad Gazette, Volume 21 (14 June 1889), p. 386. Works numbers were 1011-1014 in January 1889, 1015-1016 in March.
These little suburban tanks had the following names: Isidoro (or Intripda), Fe, Providencia, Invincible, Indefatigable, and Perseverance. The railway would later grow into the Buenos Central Railway.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Isidoro |
| Locobase ID | 20293 |
| Railroad | Tramway Rural a Vapor |
| Country | Argentina |
| Whyte | 2-4-2T |
| Number in Class | 6 |
| Road Numbers | 1-6 |
| Gauge | Std |
| Number Built | 6 |
| Builder | Porter |
| Year | 1889 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5.75 / 1.75 |
| Engine Wheelbase (ft / m) | 15.75 / 4.80 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.37 |
| Overall Wheelbase (engine & tender) (ft / m) | 15.75 / 4.80 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 21,500 / 9752 |
| Engine Weight (lbs / kg) | 32,000 / 14,515 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 32,000 / 14,515 |
| Tender Water Capacity (gals / ML) | 400 / 2.65 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 18 / 9 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 36 / 914 |
| Boiler Pressure (psi / kPa) | 130 / 900 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 9" x 16" / 229x406 |
| Tractive Effort (lbs / kg) | 3978 / 1804.39 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.40 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 86 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 6.25 / 1.90 |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 7.88 |
| Evaporative Heating Surface (sq ft / m2) | |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | |
| Evaporative Heating Surface/Cylinder Volume | |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1024 |
| Same as above plus superheater percentage | 1024 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |