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Pittsburgh & West Virginia classes J-1 and J-2
The first 2-6-6-4 articulated locomotive ever built was the class J-1 of the Pittsburgh & West Virginia. They were created in 1934 by Baldwin to surpass the power of existing 2-6-6-2 locomotives. In contrast to later ...
| Pittsburgh & West Virginia classes J-1 and J-2Remove | |
|---|---|
| Variant | Standard |
| Built | 1934, 1937 |
| Manufacturers | Baldwin |
| Wheel arrangement | (1C)C2 ma |
| Gauge | 1435 mm |
| Length | |
| Service mass | 239515 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Pittsburgh & West Virginia classes J-1 and J-2 Standard Remove |
|---|---|
| Built | 1934, 1937 |
| Manufacturers | Baldwin |
| Wheel arrangement | 2-6-6-4 |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Pittsburgh & West Virginia classes J-1 and J-2 Standard Remove |
|---|---|
| Wheelbase | 16.97 m |
| Total wheelbase | 29.97 m |
| Service mass | 239.5 t |
| Adhesion mass | 180.2 t |
| Total mass | 415.3 t |
| Rigid wheelbase | 3.35 m |
| Axle load | 30 t |
| Water capacity | 75,708 l |
| Fuel capacity | 22.7 t (coal) |
Boiler
| Property | Pittsburgh & West Virginia classes J-1 and J-2 Standard Remove |
|---|---|
| Grate area | 9.504 m² |
| Firebox surface | 46.359 m² |
| Tube heating surface | 503.07 m² |
| Evaporative heating surface | 549.429 m² |
| Superheater surface | 174.008 m² |
| Total heating surface | 723.4 m² |
Power plant
| Property | Pittsburgh & West Virginia classes J-1 and J-2 Standard Remove |
|---|---|
| Driver diameter | 1,600 mm |
| Boiler pressure | 15.5 bar |
| Expansion type | simple expansion |
| Cylinders | four, 584 x 813 mm |
Power
| Property | Pittsburgh & West Virginia classes J-1 and J-2 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 3,430 kW (4,664 PS) |
| Starting effort | 457.2 kN |
| Starting effort booster | 71.172 kN |
Calculated values
| Property | Pittsburgh & West Virginia classes J-1 and J-2 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 3.87 |
| Optimal speed | 47 km/h |
| Power-to-weight ratio | 14.3 kW/t |
| Heating Surface Equivalent | 1,129.2 m² |
| Cylinder volume/HSE | 1 : 771.74 |
| Adhesive weight/Total | 1 : 1.33 |
| Tractive force/Heating surface | 1 : 13.20 |
| Grate area/Heating surface | 1 : 76.12 |
| Firebox/Tube surface | 1 : 10.85 |
| Total/Superheater | 1 : 3.16 |
