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Pennsylvania classes D and Da
For the transport of freight trains, the PRR had Baldwin build a class of ten-wheelers from 1868, which was one of the heaviest designs of this manufacturer at the time and achieved a very respectable number for its t...
| Pennsylvania classes D and DaRemove | |
|---|---|
| Variant | |
| Built | 1878-1882 |
| Manufacturers | Altoona |
| Wheel arrangement | 2C |
| Gauge | 1435 mm |
| Length | |
| Service mass | 37421 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Pennsylvania classes D and DaRemove |
|---|---|
| Built | 1878-1882 |
| Manufacturers | Altoona |
| Wheel arrangement | 4-6-0 (Ten-wheeler) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Pennsylvania classes D and DaRemove |
|---|---|
| Wheelbase | 7.21 m |
| Total wheelbase | 13.97 m |
| Service mass | 37.4 t |
| Adhesion mass | 26.1 t |
| Total mass | 60.7 t |
| Rigid wheelbase | 3.66 m |
| Axle load | 9.3 t |
| Water capacity | 9,085 l |
| Fuel capacity | 3.6 t (coal) |
Boiler
| Property | Pennsylvania classes D and DaRemove |
|---|---|
| Grate area | 1.347 m² |
| Firebox surface | 8.919 m² |
| Tube heating surface | 92.624 m² |
| Evaporative heating surface | 101.543 m² |
| Total heating surface | 101.5 m² |
Power plant
| Property | Pennsylvania classes D and DaRemove |
|---|---|
| Driver diameter | 1,270 mm |
| Boiler pressure | 8.6 bar |
| Expansion type | simple expansion |
| Cylinders | two, 457 x 559 mm |
Power
| Property | Pennsylvania classes D and DaRemove |
|---|---|
| Power source | steam |
| Estimated power | 280 kW (381 PS) |
| Starting effort | 67.4 kN |
Calculated values
| Property | Pennsylvania classes D and DaRemove |
|---|---|
| Factor of adhesion | 1 : 3.81 |
| Optimal speed | 26 km/h |
| Power-to-weight ratio | 7.5 kW/t |
| Heating Surface Equivalent | 146.1 m² |
| Cylinder volume/HSE | 1 : 1,255.53 |
| Adhesive weight/Total | 1 : 1.43 |
| Tractive force/Heating surface | 1 : 13.86 |
| Grate area/Heating surface | 1 : 75.38 |
| Firebox/Tube surface | 1 : 10.39 |
