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Norfolk & Western classes J and J-1
To carry heavier express trains, the Norfolk & Western designed the class J, which had a 4-8-4 wheel arrangement and distinctive streamlined casing. It was characterized by a bullet nose, a skyline casing on the top o...
| Norfolk & Western classes J and J-1Remove | |
|---|---|
| Variant | Standard |
| Built | 1941-1950 |
| Manufacturers | Roanoke |
| Wheel arrangement | 2D2 |
| Gauge | 1435 mm |
| Length | |
| Service mass | 224075 kg |
| Top speed | 177 km/h |
| Power | |
| Engine |
General
| Property | Norfolk & Western classes J and J-1 Standard Remove |
|---|---|
| Built | 1941-1950 |
| Manufacturers | Roanoke |
| Wheel arrangement | 4-8-4 (Northern) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Norfolk & Western classes J and J-1 Standard Remove |
|---|---|
| Wheelbase | 14.41 m |
| Total wheelbase | 29.08 m |
| Service mass | 224.1 t |
| Adhesion mass | 130.6 t |
| Total mass | 395.8 t |
| Rigid wheelbase | 5.72 m |
| Axle load | 32.7 t |
| Water capacity | 83,279 l |
| Fuel capacity | 23.6 t (coal) |
Boiler
| Property | Norfolk & Western classes J and J-1 Standard Remove |
|---|---|
| Grate area | 10.006 m² |
| Firebox surface | 53.698 m² |
| Tube heating surface | 435.994 m² |
| Evaporative heating surface | 489.692 m² |
| Superheater surface | 202.25 m² |
| Total heating surface | 691.9 m² |
Power plant
| Property | Norfolk & Western classes J and J-1 Standard Remove |
|---|---|
| Driver diameter | 1,778 mm |
| Boiler pressure | 20.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 686 x 813 mm |
Power
| Property | Norfolk & Western classes J and J-1 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 4,474 kW (6,083 PS) |
| Top speed | 177 km/h |
| Starting effort | 378.0 kN |
Calculated values
| Property | Norfolk & Western classes J and J-1 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 3.39 |
| Optimal speed | 72 km/h |
| Power-to-weight ratio | 20.0 kW/t |
| Heating Surface Equivalent | 1,162.7 m² |
| Cylinder volume/HSE | 1 : 516.46 |
| Adhesive weight/Total | 1 : 1.72 |
| Tractive force/Heating surface | 1 : 11.41 |
| Grate area/Heating surface | 1 : 69.15 |
| Firebox/Tube surface | 1 : 8.12 |
| Total/Superheater | 1 : 2.42 |
