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Weyerhaeuser Timber No. 200 and 201
Numbers 200 and 201 built by Baldwin in 1929 and 1933 for Weyerhaeuser Timber were most likely the largest locomotives ever built for logging. The customer needed them for their world's largest sawmill at Longview, Wa...
General
| Property | Weyerhaeuser Timber No. 200 and 201Remove |
|---|---|
| Built | 1929, 1933 |
| Manufacturers | Baldwin |
| Wheel arrangement | 2-8-8-2 (Mikado Mallet) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Weyerhaeuser Timber No. 200 and 201Remove |
|---|---|
| Wheelbase | 17.98 m |
| Rigid wheelbase | 4.12 m |
| Total wheelbase | 23.62 m |
| Service weight | 161 t |
| Adhesive weight | 145.2 t |
| Axle load | 18.1 t |
| Total weight | 225.9 t |
| Water capacity | 26,498 l |
| Fuel capacity | 9,464 l (oil) |
Boiler
| Property | Weyerhaeuser Timber No. 200 and 201Remove |
|---|---|
| Grate area | 5.992 m² |
| Firebox surface | 26.942 m² |
| Tube heating surface | 311.133 m² |
| Evaporative heating surface | 338.074 m² |
| Superheater surface | 91.51 m² |
| Total heating surface | 429.6 m² |
Power plant
| Property | Weyerhaeuser Timber No. 200 and 201Remove |
|---|---|
| Driver diameter | 1,295 mm |
| Boiler pressure | 14.8 bar |
| Expansion type | compound |
| Cylinders | four, HP: 584 x 711 mm and LP: 889 x 711 mm |
Power
| Property | Weyerhaeuser Timber No. 200 and 201Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,939 kW (2,636 PS) |
| Starting effort | 329.8 kN |
| Starting effort simple | 395.7 kN |
Calculated values
| Property | Weyerhaeuser Timber No. 200 and 201Remove |
|---|---|
| Factor of adhesion | 1 : 4.32 |
| Optimal speed | 35 km/h |
| Power-to-weight ratio | 12.0 kW/t |
| Heating Surface Equivalent | 655.8 m² |
| Cylinder volume/HSE | 1 : 1,254.53 |
| Adhesive weight/Total | 1 : 1.11 |
| Tractive force/Heating surface | 1 : 16.03 |
| Grate area/Heating surface | 1 : 71.69 |
| Firebox/Tube surface | 1 : 11.55 |
| Total/Superheater | 1 : 3.69 |
