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Chesapeake & Ohio class J-3 “Greenbrier”
At the Chesapeake & Ohio, the wheel arrangement 4-8-4 was not being called “Northern”, but “Greenbrier” after the hotel in White Sulphur Springs, West Virginia that was a famous destination of the C&O. For heavy expre...
| Chesapeake & Ohio class J-3 “Greenbrier”Remove | |
|---|---|
| Variant | |
| Built | 1948 |
| Manufacturers | Lima |
| Wheel arrangement | 2D2 |
| Gauge | 1435 mm |
| Length | 33785 mm |
| Service mass | 218723 kg |
| Top speed | 161 km/h |
| Power | |
| Engine |
General
| Property | Chesapeake & Ohio class J-3 “Greenbrier”Remove |
|---|---|
| Built | 1948 |
| Manufacturers | Lima |
| Wheel arrangement | 4-8-4 (Northern) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Chesapeake & Ohio class J-3 “Greenbrier”Remove |
|---|---|
| Length | 33.79 m |
| Wheelbase | 14.29 m |
| Total wheelbase | 30.00 m |
| Service mass | 218.7 t |
| Adhesion mass | 129.4 t |
| Total mass | 393.9 t |
| Rigid wheelbase | 5.87 m |
| Axle load | 32.5 t |
| Water capacity | 81,386 l |
| Fuel capacity | 22.7 t (coal) |
Boiler
| Property | Chesapeake & Ohio class J-3 “Greenbrier”Remove |
|---|---|
| Grate area | 9.29 m² |
| Firebox surface | 44.779 m² |
| Tube heating surface | 404.036 m² |
| Evaporative heating surface | 448.815 m² |
| Superheater surface | 215.071 m² |
| Total heating surface | 663.9 m² |
Power plant
| Property | Chesapeake & Ohio class J-3 “Greenbrier”Remove |
|---|---|
| Driver diameter | 1,880 mm |
| Boiler pressure | 17.6 bar |
| Expansion type | simple expansion |
| Cylinders | two, 698 x 762 mm |
Power
| Property | Chesapeake & Ohio class J-3 “Greenbrier”Remove |
|---|---|
| Power source | steam |
| Estimated power | 3,878 kW (5,273 PS) |
| Top speed | 161 km/h |
| Starting effort | 295.6 kN |
| Starting effort booster | 55.158 kN |
Calculated values
| Property | Chesapeake & Ohio class J-3 “Greenbrier”Remove |
|---|---|
| Factor of adhesion | 1 : 4.29 |
| Optimal speed | 80 km/h |
| Power-to-weight ratio | 17.7 kW/t |
| Heating Surface Equivalent | 1,102.9 m² |
| Cylinder volume/HSE | 1 : 529.53 |
| Adhesive weight/Total | 1 : 1.69 |
| Tractive force/Heating surface | 1 : 9.30 |
| Grate area/Heating surface | 1 : 71.46 |
| Firebox/Tube surface | 1 : 9.02 |
| Total/Superheater | 1 : 2.09 |
