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Baltimore & Ohio class T-3
The T-3 was the last class of 4-8-2 “Mountain” locomotives built for the B&O. The 40 locomotives were ordered to cope with the increased wartime traffic and were numbered 5555 to 5594. Compared to the few earlier Moun...
| Baltimore & Ohio class T-3Remove | |
|---|---|
| Variant | Standard |
| Built | 1942-1948 |
| Manufacturers | Mount Clare |
| Wheel arrangement | 2D1 |
| Gauge | 1435 mm |
| Length | 30953 mm |
| Service mass | 170097 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Baltimore & Ohio class T-3 Standard Remove |
|---|---|
| Built | 1942-1948 |
| Manufacturers | Mount Clare |
| Wheel arrangement | 4-8-2 (Mountain) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Baltimore & Ohio class T-3 Standard Remove |
|---|---|
| Length | 30.95 m |
| Wheelbase | 12.40 m |
| Total wheelbase | 26.85 m |
| Service mass | 170.1 t |
| Adhesion mass | 115.7 t |
| Total mass | 335.7 t |
| Rigid wheelbase | 5.56 m |
| Axle load | 29.5 t |
| Water capacity | 75,708 l |
| Fuel capacity | 22.7 t (coal) |
Boiler
| Property | Baltimore & Ohio class T-3 Standard Remove |
|---|---|
| Grate area | 6.503 m² |
| Firebox surface | 36.046 m² |
| Tube heating surface | 330.921 m² |
| Evaporative heating surface | 366.967 m² |
| Superheater surface | 99.499 m² |
| Total heating surface | 466.5 m² |
Power plant
| Property | Baltimore & Ohio class T-3 Standard Remove |
|---|---|
| Driver diameter | 1,778 mm |
| Boiler pressure | 15.9 bar |
| Expansion type | simple expansion |
| Cylinders | two, 686 x 813 mm |
Power
| Property | Baltimore & Ohio class T-3 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 2,983 kW (4,056 PS) |
| Starting effort | 289.8 kN |
Calculated values
| Property | Baltimore & Ohio class T-3 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 3.92 |
| Optimal speed | 63 km/h |
| Power-to-weight ratio | 17.5 kW/t |
| Heating Surface Equivalent | 746.2 m² |
| Cylinder volume/HSE | 1 : 804.72 |
| Adhesive weight/Total | 1 : 1.47 |
| Tractive force/Heating surface | 1 : 12.98 |
| Grate area/Heating surface | 1 : 71.73 |
| Firebox/Tube surface | 1 : 9.18 |
| Total/Superheater | 1 : 3.69 |
