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The reference for locomotives and railcars

Canadian Pacific class G5

Canada 1946 102 produced
No. 1293 in 2008, then owned by the Ohio Central NOYB #1 CC BY 2.0

Starting in 1946, the Canadian Pacific had class G5 Pacific locomotives built for use on branch lines. With an adhesive weight of only 151.000 pounds, these had a low axle load by North American standards. Contrary to the field of service of most locomotives with this wheel arrangement, they were intended for use with regular passenger and freight trains, which was also noticeable in the driving wheel diameter of only 70 inches.

From an initially planned number of 600, only 102 were finally built, as more and more diesel locomotives were put into service. For the same reason, only ten years after the end of production, the first class members were retired and in 1960 the last ones disappeared. Today there are still six which are currently only on static display, but could possibly be made operational again.

Technical data

General

Built
1946-1948
Manufacturers
Montreal Locomotive Works, Canadian Locomotive Co.
Wheel arrangement
4-6-2 (Pacific)
Gauge
1,435 mm (Standard gauge)

Dimensions and weights

Length
23.27 m
Wheelbase
10.25 m
Service mass
104.1 t
Adhesion mass
68.5 t
Total mass
190.7 t
Rigid wheelbase
3.96 m
Axle load
22.8 t
Water capacity
36,340 l
Fuel capacity
12.7 t (coal)

Boiler

Grate area
4.236 m²
Firebox surface
18.488 m²
Tube heating surface
220.831 m²
Evaporative heating surface
239.318 m²
Superheater surface
69.12 m²
Total heating surface
308.4 m²

Power plant

Driver diameter
1,778 mm
Boiler pressure
17.2 bar
Expansion type
simple expansion
Cylinders
two, 508 x 711 mm

Power

Power source
steam
Estimated power
2,051 kW (2,789 PS)
Top speed
137 km/h
Starting effort
151.2 kN

Calculated values

Factor of adhesion
1 : 4.44
Optimal speed
84 km/h
Power-to-weight ratio
19.7 kW/t
Heating Surface Equivalent
470.0 m²
Cylinder volume/HSE
1 : 613.40
Adhesive weight/Total
1 : 1.52
Tractive force/Heating surface
1 : 10.24
Grate area/Heating surface
1 : 72.81
Firebox/Tube surface
1 : 11.94
Total/Superheater
1 : 3.46
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