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Boston & Maine class B-15
Between 1903 and 1907, ALCO built 140 Moguls for the Boston & Maine. These were numbered between 1360 and 1499 and the first variant was designated B-15. All of these were built at Manchester between 1903 and 1907. A ...
General
| Property | Boston & Maine class B-15 B-15, B-15a |
|---|---|
| Built | 1903-1907 |
| Manufacturers | ALCO |
| Wheel arrangement | 2-6-0 (Mogul) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Boston & Maine class B-15 B-15, B-15a |
|---|---|
| Wheelbase | 6.93 m |
| Rigid wheelbase | 4.57 m |
| Total wheelbase | 15.60 m |
| Service weight | 65.8 t |
| Adhesive weight | 55.7 t |
| Axle load | 18.6 t |
| Total weight | 97.9 t |
| Water capacity | 18,927 l |
| Fuel capacity | 9.1 t (coal) |
Boiler
| Property | Boston & Maine class B-15 B-15, B-15a |
|---|---|
| Grate area | 2.806 m² |
| Firebox surface | 14.809 m² |
| Tube heating surface | 161.057 m² |
| Evaporative heating surface | 175.866 m² |
| Total heating surface | 175.9 m² |
Power plant
| Property | Boston & Maine class B-15 B-15, B-15a |
|---|---|
| Driver diameter | 1,600 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 483 x 660 mm |
Power
| Property | Boston & Maine class B-15 B-15, B-15a |
|---|---|
| Power source | steam |
| Estimated power | 708 kW (963 PS) |
| Starting effort | 112.7 kN |
Calculated values
| Property | Boston & Maine class B-15 B-15, B-15a |
|---|---|
| Factor of adhesion | 1 : 4.85 |
| Optimal speed | 39 km/h |
| Power-to-weight ratio | 10.8 kW/t |
| Heating Surface Equivalent | 249.9 m² |
| Cylinder volume/HSE | 1 : 966.75 |
| Adhesive weight/Total | 1 : 1.18 |
| Tractive force/Heating surface | 1 : 13.38 |
| Grate area/Heating surface | 1 : 62.67 |
| Firebox/Tube surface | 1 : 10.88 |
