Bloedel Donovan Lumber Mills No. 14
Rayonier, Inc. No. 14
United States 1927 1 produced
Originally built for Larson Lumber in November 1927, this 2-6-6-2 Mallet went to Bloedel Donovan Lumber Mills in Washington instead. Although being standard gauge, it was fairly small for a 2-6-6-2, optimized for logging service. Nevertheless it was much more powerful than the Mallet tanks of the same wheel arrangement then in use by this company. It had drivers of 51 inches and cylinders with diameters of 20 and 31 inches, at a stroke of 28 inches. Later it came to Rayonier, Inc. and still carried the number 14. It was retired in 1964 and scrapped four years later.
Technical data
General
- Built
- 1927
- Manufacturers
- Baldwin
- Wheel arrangement
- 2-6-6-2 (Mallet Mogul)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Wheelbase
- 8.15 m
- Total wheelbase
- 19.89 m
- Empty mass
- 113.4 t
- Service mass
- 124.7 t
- Adhesion mass
- 108.9 t
- Total mass
- 170.1 t
- Rigid wheelbase
- 2.74 m
- Axle load
- 18.1 t
- Water capacity
- 18,927 l
- Fuel capacity
- 5,678 l (oil)
Boiler
- Grate area
- 5.314 m²
- Firebox surface
- 18.395 m²
- Tube heating surface
- 317.171 m²
- Evaporative heating surface
- 335.566 m²
- Superheater surface
- 75.437 m²
- Total heating surface
- 411.0 m²
Power plant
- Driver diameter
- 1,295 mm
- Boiler pressure
- 14.8 bar
- Expansion type
- compound
- Cylinders
- four, HP: 508 x 711 mm and LP: 787 x 711 mm
Power
- Power source
- steam
- Estimated power
- 1,566 kW (2,129 PS)
- Starting effort
- 252.1 kN
- Starting effort simple
- 302.5 kN
Calculated values
- Factor of adhesion
- 1 : 4.24
- Optimal speed
- 39 km/h
- Power-to-weight ratio
- 12.6 kW/t
- Heating Surface Equivalent
- 578.4 m²
- Cylinder volume/HSE
- 1 : 1,097.16
- Adhesive weight/Total
- 1 : 1.15
- Tractive force/Heating surface
- 1 : 12.81
- Grate area/Heating surface
- 1 : 77.34
- Firebox/Tube surface
- 1 : 17.24
- Total/Superheater
- 1 : 4.45
