Data provided by diagram supplied at the [] site, last accessed 17 April 2010. Beyer, Peacock works numbers were 3036-3045 and 3932-3937 in 1889, 4418-4427 in 1903.
This class was supplied by Beyer, Peacock and North British Locomotive Company between 1899 and 1910.
NB: Tube length is an estimate based on the calculation of tube surface area by subtracting reported firebox heating surface from reported total evaporative heating surface
Data from "Argentine Great Western Railway Type 2.6.0", Locomotives Constructed by Kitson & Co, Limited (n.d.). Kitson works numbers were 4052-4061 in 1900 and 4112-4118 in 1902. Beyer Peacock works numbers 4418-4427 in 1902.
These were mixed-traffic simple-expansion engines
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | 2cs | 78 |
| Locobase ID | 11217 | 3726 |
| Railroad | FC Gran Oeste Argentino (FCGOA) | FC Gran Oeste Argentino (FCGOA) |
| Country | Argentina | Argentina |
| Whyte | 2-6-0 | 2-6-0 |
| Number in Class | 64 | 27 |
| Road Numbers | 201-264 | 78-104 |
| Gauge | 5'6" | 5'6" |
| Number Built | 64 | 27 |
| Builder | several | several |
| Year | 1890 | 1900 |
| Valve Gear | Stephenson | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 11.75 / 3.58 | 11.75 / 3.58 |
| Engine Wheelbase (ft / m) | 20 / 6.10 | 19.92 / 6.07 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.59 | 0.59 |
| Overall Wheelbase (engine & tender) (ft / m) | 43.83 / 13.36 | 39.25 / 11.96 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
| Weight on Drivers (lbs / kg) | 92,058 / 41,757 | 81,088 / 36,781 |
| Engine Weight (lbs / kg) | 112,665 / 51,104 | 103,488 / 46,941 |
| Tender Loaded Weight (lbs / kg) | 88,227 / 40,019 | 72,128 / 32,717 |
| Total Engine and Tender Weight (lbs / kg) | 200,892 / 91,123 | 175,616 / 79,658 |
| Tender Water Capacity (gals / ML) | 4327 / 16.39 | 2706 / 10.25 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.70 / 6 | 5 / 4.50 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 51 / 25.50 | 45 / 22.50 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 62 / 1575 | 62 / 1575 |
| Boiler Pressure (psi / kPa) | 182.70 / 1260 | 170 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 24" / 432x610 (1) | 17.5" x 24" / 445x610 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 24.5" x 24" / 622x610 (1) | |
| Tractive Effort (lbs / kg) | 11,727 / 5319.28 | 17,130 / 7770.05 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 7.85 | 4.73 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 120 - 1.875" / 48 | |
| Flues (number - dia) (in / mm) | 21 - 5.24" / 133 | |
| Flue/Tube length (ft / m) | 11 / 3.35 | 10.75 / 3.28 |
| Firebox Area (sq ft / m2) | 107.92 / 10.03 | 87 / 8.08 |
| Grate Area (sq ft / m2) | 22.60 / 2.10 | 20.40 / 1.90 |
| Evaporative Heating Surface (sq ft / m2) | 1068 / 99.26 | 1092 / 101.45 |
| Superheating Surface (sq ft / m2) | 242 / 22.49 | |
| Combined Heating Surface (sq ft / m2) | 1310 / 121.75 | 1092 / 101.45 |
| Evaporative Heating Surface/Cylinder Volume | 338.78 | 163.44 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 4129 | 3468 |
| Same as above plus superheater percentage | 4872 | 3468 |
| Same as above but substitute firebox area for grate area | 23,266 | 14,790 |
| Power L1 | 10,915 | 4015 |
| Power MT | 784.18 | 327.48 |