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Pennsylvania class J1
To meet the increased demand for heavy freight locomotives during the Second World War, the PRR turned to the C&O and used their T-1 as the basis for their J1. Because of this origin, they were given the nickname “War...
| Pennsylvania class J1Remove | |
|---|---|
| Variant | Standard |
| Built | 1942-1944 |
| Manufacturers | Altoona |
| Wheel arrangement | 1E2 |
| Gauge | 1435 mm |
| Length | 35865 mm |
| Service mass | 259745 kg |
| Top speed | 80 km/h |
| Power | |
| Engine |
General
| Property | Pennsylvania class J1 Standard Remove |
|---|---|
| Built | 1942-1944 |
| Manufacturers | Altoona |
| Wheel arrangement | 2-10-4 (Texas) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Pennsylvania class J1 Standard Remove |
|---|---|
| Length | 35.87 m |
| Wheelbase | 15.01 m |
| Total wheelbase | 31.71 m |
| Service mass | 259.7 t |
| Adhesion mass | 171.4 t |
| Total mass | 446.4 t |
| Rigid wheelbase | 7.42 m |
| Axle load | 34.8 t |
| Water capacity | 79,494 l |
| Fuel capacity | 27.2 t (coal) |
Boiler
| Property | Pennsylvania class J1 Standard Remove |
|---|---|
| Grate area | 11.31 m² |
| Firebox surface | 48.774 m² |
| Tube heating surface | 556.954 m² |
| Evaporative heating surface | 605.728 m² |
| Superheater surface | 272.299 m² |
| Total heating surface | 878.0 m² |
Power plant
| Property | Pennsylvania class J1 Standard Remove |
|---|---|
| Driver diameter | 1,753 mm |
| Boiler pressure | 19 bar |
| Expansion type | simple expansion |
| Cylinders | two, 737 x 864 mm |
Power
| Property | Pennsylvania class J1 Standard Remove |
|---|---|
| Power source | steam |
| Indicated power | 4,209 kW (5,723 PS) |
| Top speed | 80 km/h |
| Starting effort | 430.9 kN |
| Starting effort booster | 66.723 kN |
Calculated values
| Property | Pennsylvania class J1 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 3.90 |
| Optimal speed | 60 km/h |
| Power-to-weight ratio | 16.2 kW/t |
| Heating Surface Equivalent | 1,394.2 m² |
| Cylinder volume/HSE | 1 : 527.92 |
| Adhesive weight/Total | 1 : 1.52 |
| Tractive force/Heating surface | 1 : 10.25 |
| Grate area/Heating surface | 1 : 77.63 |
| Firebox/Tube surface | 1 : 11.42 |
| Total/Superheater | 1 : 2.22 |
