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Philadelphia & Reading class P-3
In 1900, Baldwin built six Atlantics for the Philadelphia & Reading which were numbered 322 to 327 and designated class P-3a. Built for firing anthracite , they were designed as Camelbacks with a wide Wootten firebox ...
General
| Property | Philadelphia & Reading class P-3 rebuilt P-3c |
|---|---|
| Built | 1903 |
| Manufacturers | Baldwin |
| Wheel arrangement | 4-4-2 (Atlantic) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Philadelphia & Reading class P-3 rebuilt P-3c |
|---|---|
| Length loco | 12.22 m |
| Wheelbase | 8.10 m |
| Rigid wheelbase | 2.21 m |
| Service weight | 80.2 t |
| Adhesive weight | 45.6 t |
| Axle load | 22.8 t |
| Water capacity | 22,523 l |
| Fuel capacity | 7.3 t (coal) |
Boiler
| Property | Philadelphia & Reading class P-3 rebuilt P-3c |
|---|---|
| Grate area | 7.497 m² |
| Firebox surface | 20.346 m² |
| Tube heating surface | 216.557 m² |
| Evaporative heating surface | 236.903 m² |
| Total heating surface | 236.9 m² |
Power plant
| Property | Philadelphia & Reading class P-3 rebuilt P-3c |
|---|---|
| Driver diameter | 2,140 mm |
| Boiler pressure | 15.2 bar |
| Expansion type | simple expansion |
| Cylinders | two, 533 x 610 mm |
Power
| Property | Philadelphia & Reading class P-3 rebuilt P-3c |
|---|---|
| Power source | steam |
| Estimated power | 1,268 kW (1,724 PS) |
| Starting effort | 104.5 kN |
Calculated values
| Property | Philadelphia & Reading class P-3 rebuilt P-3c |
|---|---|
| Factor of adhesion | 1 : 4.28 |
| Optimal speed | 74 km/h |
| Power-to-weight ratio | 15.8 kW/t |
| Heating Surface Equivalent | 338.6 m² |
| Cylinder volume/HSE | 1 : 804.53 |
| Adhesive weight/Total | 1 : 1.76 |
| Tractive force/Heating surface | 1 : 9.21 |
| Grate area/Heating surface | 1 : 31.60 |
| Firebox/Tube surface | 1 : 10.64 |
