FC de Girardot-Tolima-Huila 4-8-2 Locomotives in Colombia
Class Details by Steve Llanso of Sweat House Media
Class 61 (Locobase 13991)
Data from a table in 1947 Locomotive Cyclopedia, considerably supplemented by Negative 13435 of the Baldwin Locomotive Works, supplied by Bryan Norden to [
],194903,194951#msg-194951 on 15 July 2011, last accessed 26 March 2012. Works numbers were 71972-71976 in 1944, 72240
72241 in 1945, and 73355-73358 in 1946.
Note that the boiler and grate had plenty of steam left when the small cylinders, which were served by 9" (229 mm) piston valves, were exhausted. These were sizable locomotives for the 3-foot gauge.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 61 |
| Locobase ID | 13991 |
| Railroad | FC de Girardot-Tolima-Huila |
| Country | Colombia |
| Whyte | 4-8-2 |
| Number in Class | 12 |
| Road Numbers | 61-71 |
| Gauge | 3' |
| Number Built | 12 |
| Builder | Baldwin |
| Year | 1944 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11.50 / 3.51 |
| Engine Wheelbase (ft / m) | 29.25 / 8.92 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.39 |
| Overall Wheelbase (engine & tender) (ft / m) | 55.08 / 16.79 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 30,500 / 13,835 |
| Weight on Drivers (lbs / kg) | 122,000 / 55,338 |
| Engine Weight (lbs / kg) | 179,000 / 81,193 |
| Tender Loaded Weight (lbs / kg) | 84,000 / 38,102 |
| Total Engine and Tender Weight (lbs / kg) | 263,000 / 119,295 |
| Tender Water Capacity (gals / ML) | 4000 / 15.15 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1500 / 5678 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 51 / 25.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 42 / 1067 |
| Boiler Pressure (psi / kPa) | 210 / 1450 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18.5" x 22" / 470x559 |
| Tractive Effort (lbs / kg) | 32,000 / 14514.97 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.81 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 171 - 2" / 51 |
| Flues (number - dia) (in / mm) | 34 - 5.125" / 130 |
| Flue/Tube length (ft / m) | 17 / 5.18 |
| Firebox Area (sq ft / m2) | 157 / 14.59 |
| Grate Area (sq ft / m2) | 48 / 4.46 |
| Evaporative Heating Surface (sq ft / m2) | 2477 / 230.20 |
| Superheating Surface (sq ft / m2) | 685 / 63.66 |
| Combined Heating Surface (sq ft / m2) | 3162 / 293.86 |
| Evaporative Heating Surface/Cylinder Volume | 361.90 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 10,080 |
| Same as above plus superheater percentage | 12,298 |
| Same as above but substitute firebox area for grate area | 40,223 |
| Power L1 | 20,246 |
| Power MT | 1463.43 |