Long Bell Lumber Company 2-6-6-2 "Mallet Mogul" Locomotives in the USA
Class Details by Steve Llanso of Sweat House Media
Class 1000 (Locobase 4056)
Data from [
], supplemented by DeGolyer, Volume 71, p. 288+. Works numbers were 57597-57598 in January 1924.
The Baldwin specs showed that this rather large articulated was expected to negotiate curves of 40 degrees (146 foot/44.5 metre radii), and conquering grades of 6% and 7%. 8" (203 mm) piston valves served the HP cylinders, 12" (305 mm) piston valves directed the HP exhaust steam to the LP cylinders.
These engines ran on Long Bell property out of Ryderwood, Wash., for their entire working lives. Both were scrapped in the mid-50s.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 1000 |
| Locobase ID | 4056 |
| Railroad | Long Bell Lumber Company |
| Country | USA |
| Whyte | 2-6-6-2 |
| Number in Class | 2 |
| Road Numbers | 1000-1001 |
| Gauge | Std |
| Number Built | 2 |
| Builder | Baldwin |
| Year | 1924 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 32 / 9.75 |
| Engine Wheelbase (ft / m) | 23.67 / 7.21 |
| Ratio of driving wheelbase to overall engine wheelbase | 1.35 |
| Overall Wheelbase (engine & tender) (ft / m) | 64.06 / 19.53 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 180,010 / 81,651 |
| Engine Weight (lbs / kg) | 209,670 / 95,105 |
| Tender Loaded Weight (lbs / kg) | 99,000 / 44,906 |
| Total Engine and Tender Weight (lbs / kg) | 308,670 / 140,011 |
| 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) | 50 / 25 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44 / 1118 |
| Boiler Pressure (psi / kPa) | 200 / 1380 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 24" / 457x610 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 28" x 24" / 711x610 |
| Tractive Effort (lbs / kg) | 42,517 / 19285.41 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.23 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 135 - 2" / 51 |
| Flues (number - dia) (in / mm) | 24 - 5.375" / 137 |
| Flue/Tube length (ft / m) | 17 / 5.18 |
| Firebox Area (sq ft / m2) | 160 / 14.86 |
| Grate Area (sq ft / m2) | 31.50 / 2.93 |
| Evaporative Heating Surface (sq ft / m2) | 1927 / 179.09 |
| Superheating Surface (sq ft / m2) | 466 / 43.31 |
| Combined Heating Surface (sq ft / m2) | 2393 / 222.40 |
| Evaporative Heating Surface/Cylinder Volume | 272.72 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 6300 |
| Same as above plus superheater percentage | 7497 |
| Same as above but substitute firebox area for grate area | 38,080 |
| Power L1 | 5935 |
| Power MT | 436.12 |