Larson Timber 2-6-6-2 "Mallet Mogul" Locomotives in the USA
Class Details by Steve Llanso of Sweat House Media
Class 14 (Locobase 4044)
Data from [
] and DeGolyer, Volume 80, pp. 280+.Works number was 60256 in November 1927.
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | 14 |
| Locobase ID | 4044 |
| Railroad | Larson Timber |
| Country | USA |
| Whyte | 2-6-6-2 |
| Number in Class | 1 |
| Road Numbers | 14 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1927 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 18 / 5.49 |
| Engine Wheelbase (ft / m) | 26.75 / 8.15 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.67 |
| Overall Wheelbase (engine & tender) (ft / m) | 65.25 / 19.89 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 250,000 / 113,398 |
| Engine Weight (lbs / kg) | 275,000 / 124,738 |
| Tender Loaded Weight (lbs / kg) | 100,000 / 45,359 |
| Total Engine and Tender Weight (lbs / kg) | 375,000 / 170,097 |
| Tender Water Capacity (gals / ML) | 5000 / 18.94 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1500 / 5678 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 69 / 34.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 51 / 1295 |
| Boiler Pressure (psi / kPa) | 215 / 14.80 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 28" / 508x711 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 31" x 28" / 787x711 |
| Tractive Effort (lbs / kg) | 56,676 / 25707.83 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.41 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 239 - 2" / 51 |
| Flues (number - dia) (in / mm) | 36 - 5.375" / 137 |
| Flue/Tube length (ft / m) | 19.50 / 5.94 |
| Firebox Area (sq ft / m2) | 198 / 18.39 |
| Grate Area (sq ft / m2) | 57.20 / 5.32 |
| Evaporative Heating Surface (sq ft / m2) | 3612 / 335.69 |
| Superheating Surface (sq ft / m2) | 812 / 75.46 |
| Combined Heating Surface (sq ft / m2) | 4424 / 411.15 |
| Evaporative Heating Surface/Cylinder Volume | 354.82 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 12,298 |
| Same as above plus superheater percentage | 14,512 |
| Same as above but substitute firebox area for grate area | 50,233 |
| Power L1 | 8898 |
| Power MT | 470.80 |