Ohio & Mississippi No. 3 and 4
Baltimore & Ohio Southwestern class H and Baltimore & Ohio class E-25
United States 1890 2 produced
In March 1890, Rhode Island delivered two Consolidations to the Ohio and Mississippi Railway. They were numbered 3 and 4 and had drivers of only 51 inches. When this company became part of the Baltimore & Ohio Southwestern in 1893, the locomotives became class H and were numbered 200 and 201. In 1900, they became No. 400 and 401 of the Baltimore & Ohio and were designated class E-25. 401 was retired in 1933 and 400 in 1934.
Technical data
General
- Built
- 1890
- Manufacturers
- Rhode Island
- Wheel arrangement
- 2-8-0 (Consolidation)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Wheelbase
- 6.88 m
- Total wheelbase
- 14.83 m
- Service mass
- 55.2 t
- Adhesion mass
- 49.3 t
- Total mass
- 89.3 t
- Rigid wheelbase
- 4.57 m
- Axle load
- 12.3 t
- Water capacity
- 13,249 l
- Fuel capacity
- 6.8 t (coal)
Boiler
- Grate area
- 2.346 m²
- Firebox surface
- 15.236 m²
- Tube heating surface
- 163.51 m²
- Evaporative heating surface
- 178.746 m²
- Total heating surface
- 178.7 m²
Power plant
- Driver diameter
- 1,295 mm
- Boiler pressure
- 11 bar
- Expansion type
- simple expansion
- Cylinders
- two, 508 x 610 mm
Power
- Power source
- steam
- Estimated power
- 503 kW (684 PS)
- Starting effort
- 113.9 kN
Calculated values
- Factor of adhesion
- 1 : 4.25
- Optimal speed
- 27 km/h
- Power-to-weight ratio
- 9.1 kW/t
- Heating Surface Equivalent
- 254.9 m²
- Cylinder volume/HSE
- 1 : 969.34
- Adhesive weight/Total
- 1 : 1.12
- Tractive force/Heating surface
- 1 : 13.31
- Grate area/Heating surface
- 1 : 76.19
- Firebox/Tube surface
- 1 : 10.73
