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Western Pacific class TP-29
The first 16 of these oil-fired ten-wheelers were delivered to the Western Pacific in 1908, followed by 20 more the following year. ALCO-Brooks asked for a price of between 13,247 and 14,585 dollars per locomotive. Th...
General
| Property | Western Pacific class TP-29 as built |
|---|---|
| Built | 1908-1909 |
| Manufacturers | ALCO |
| Wheel arrangement | 4-6-0 (Ten-wheeler) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Western Pacific class TP-29 as built |
|---|---|
| Wheelbase | 7.42 m |
| Rigid wheelbase | 4.12 m |
| Total wheelbase | 17.65 m |
| Service weight | 82.1 t |
| Adhesive weight | 61.2 t |
| Axle load | 20.4 t |
| Total weight | 139.9 t |
| Water capacity | 22,712 l |
| Fuel capacity | 11,621 l (oil) |
Boiler
| Property | Western Pacific class TP-29 as built |
|---|---|
| Grate area | 3.112 m² |
| Firebox surface | 17.93 m² |
| Tube heating surface | 223.339 m² |
| Evaporative heating surface | 241.269 m² |
| Total heating surface | 241.3 m² |
Power plant
| Property | Western Pacific class TP-29 as built |
|---|---|
| Driver diameter | 1,702 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 533 x 660 mm |
Power
| Property | Western Pacific class TP-29 as built |
|---|---|
| Power source | steam |
| Estimated power | 746 kW (1,014 PS) |
| Starting effort | 129.4 kN |
Calculated values
| Property | Western Pacific class TP-29 as built |
|---|---|
| Factor of adhesion | 1 : 4.64 |
| Optimal speed | 35 km/h |
| Power-to-weight ratio | 9.1 kW/t |
| Heating Surface Equivalent | 330.9 m² |
| Cylinder volume/HSE | 1 : 891.89 |
| Adhesive weight/Total | 1 : 1.34 |
| Tractive force/Heating surface | 1 : 11.20 |
| Grate area/Heating surface | 1 : 77.53 |
| Firebox/Tube surface | 1 : 12.46 |
