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Weyerhaeuser Timber 2-6-6-2ST
The Weyerhaeuser Timber Co. was one of the American logging railroads which used Mallets instead of geared steam locomotives for their steep and winding lines. They hoped that these would be easier to maintain than a ...
| Weyerhaeuser Timber 2-6-6-2STRemove | |
|---|---|
| Variant | 105, 106 |
| Built | 1929 |
| Manufacturers | Baldwin |
| Wheel arrangement | (1C)C1 ma |
| Gauge | 1435 mm |
| Length | |
| Service mass | 111584 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Weyerhaeuser Timber 2-6-6-2ST105, 106 |
|---|---|
| Built | 1929 |
| Manufacturers | Baldwin |
| Wheel arrangement | 2-6-6-2ST (Mallet Mogul) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Weyerhaeuser Timber 2-6-6-2ST105, 106 |
|---|---|
| Wheelbase | 11.51 m |
| Service mass | 111.6 t |
| Adhesion mass | 94.3 t |
| Rigid wheelbase | 2.44 m |
| Water capacity | 12,113 l |
| Fuel capacity | 4,542 l (oil) |
Boiler
| Property | Weyerhaeuser Timber 2-6-6-2ST105, 106 |
|---|---|
| Grate area | 2.434 m² |
| Firebox surface | 11.892 m² |
| Tube heating surface | 141.77 m² |
| Evaporative heating surface | 153.662 m² |
| Superheater surface | 33.259 m² |
| Total heating surface | 186.9 m² |
Power plant
| Property | Weyerhaeuser Timber 2-6-6-2ST105, 106 |
|---|---|
| Driver diameter | 1,118 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | four, 406 x 610 mm |
Power
| Property | Weyerhaeuser Timber 2-6-6-2ST105, 106 |
|---|---|
| Power source | steam |
| Estimated power | 820 kW (1,115 PS) |
| Starting effort | 211.2 kN |
Calculated values
| Property | Weyerhaeuser Timber 2-6-6-2ST105, 106 |
|---|---|
| Factor of adhesion | 1 : 4.38 |
| Optimal speed | 24 km/h |
| Power-to-weight ratio | 7.3 kW/t |
| Heating Surface Equivalent | 279.6 m² |
| Cylinder volume/HSE | 1 : 1,131.11 |
| Adhesive weight/Total | 1 : 1.18 |
| Tractive force/Heating surface | 1 : 23.60 |
| Grate area/Heating surface | 1 : 76.80 |
| Firebox/Tube surface | 1 : 11.92 |
| Total/Superheater | 1 : 4.62 |
