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Queensland Railways class PB15
In 1899, the QR introduced a new type of passenger locomotives designed by Henry Horniblow and L.W. Piggott. It had much in common with the B15, but larger drivers with a diameter of four instead of three feet . The f...
| Queensland Railways class PB15Remove | |
|---|---|
| Variant | as built |
| Built | 1899-1926 |
| Manufacturers | Evans, Anderson, Phelan & Co.;North Ipswich;Kitson & Co.;Toowoomba Foundry;Walkers |
| Wheel arrangement | 2C |
| Gauge | 1067 mm |
| Length | 14480 mm |
| Service mass | 32564 kg |
| Top speed | 64 km/h |
| Power | |
| Engine |
General
| Property | Queensland Railways class PB15as built |
|---|---|
| Built | 1899-1926 |
| Manufacturers | Evans, Anderson, Phelan & Co., North Ipswich, Kitson & Co., Toowoomba Foundry, Walkers |
| Wheel arrangement | 4-6-0 (Ten-wheeler) |
| Gauge | 1,067 mm |
Dimensions and weights
| Property | Queensland Railways class PB15as built |
|---|---|
| Length | 14.48 m |
| Wheelbase | 5.74 m |
| Service mass | 32.6 t |
| Adhesion mass | 23.8 t |
| Total mass | 57.2 t |
| Rigid wheelbase | 2.97 m |
| Axle load | 8.1 t |
| Water capacity | 11,000 l |
| Fuel capacity | 4 t (coal) |
Boiler
| Property | Queensland Railways class PB15as built |
|---|---|
| Grate area | 1.217 m² |
| Firebox surface | 7.432 m² |
| Tube heating surface | 73.579 m² |
| Evaporative heating surface | 81.012 m² |
| Total heating surface | 81.0 m² |
Power plant
| Property | Queensland Railways class PB15as built |
|---|---|
| Driver diameter | 1,219 mm |
| Boiler pressure | 10.3 bar |
| Expansion type | simple expansion |
| Cylinders | two, 381 x 508 mm |
Power
| Property | Queensland Railways class PB15as built |
|---|---|
| Power source | steam |
| Estimated power | 224 kW (305 PS) |
| Top speed | 64 km/h |
| Starting effort | 53.2 kN |
Calculated values
| Property | Queensland Railways class PB15as built |
|---|---|
| Factor of adhesion | 1 : 4.40 |
| Optimal speed | 26 km/h |
| Power-to-weight ratio | 6.9 kW/t |
| Heating Surface Equivalent | 118.2 m² |
| Cylinder volume/HSE | 1 : 980.22 |
| Adhesive weight/Total | 1 : 1.37 |
| Tractive force/Heating surface | 1 : 13.71 |
| Grate area/Heating surface | 1 : 66.57 |
| Firebox/Tube surface | 1 : 9.90 |
