Grand Trunk class K-3
Canada 1910 70 produced
The K-3 was a series of 70 Pacifics delivered between 1910 and 1913 to the Grand Trunk. They had been built by Baldwin, Montreal Locomotive Works and the GT's own workshops. There were several batches from K-3-a to K-3-g which differed mainly in the valve gear. They later got thermic syphons, what increased their firebox heating surface by around 50 square feet. The specs given below already include the thermic syphons. The K-3-g differed from the others by having more boiler tubes and a cylinder diameter that was one inch smaller. The class was retired between 1950 and 1961. No. 5588 "Spirit of Windsor" is the only one that has been preserved, it can be found on display at Windsor, Ontario.
Technical data
General
- Built
- 1910-1913
- Manufacturers
- Baldwin, Grand Trunk, Montreal Locomotive Works
- Wheel arrangement
- 4-6-2 (Pacific)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Wheelbase
- 10.11 m
- Total wheelbase
- 18.99 m
- Service mass
- 103.9 t
- Adhesion mass
- 67.8 t
- Total mass
- 175.5 t
- Rigid wheelbase
- 4.06 m
- Axle load
- 22.6 t
- Water capacity
- 30,283 l
- Fuel capacity
- 13.6 t (coal)
Boiler
- Grate area
- 4.703 m²
- Firebox surface
- 21.461 m²
- Tube heating surface
- 203.829 m²
- Evaporative heating surface
- 225.29 m²
- Superheater surface
- 53.698 m²
- Total heating surface
- 279.0 m²
Power plant
- Driver diameter
- 1,854 mm
- Boiler pressure
- 13.4 bar
- Expansion type
- simple expansion
- Cylinders
- two, 584 x 711 mm
Power
- Power source
- steam
- Estimated power
- 1,417 kW (1,927 PS)
- Starting effort
- 149.6 kN
Calculated values
- Factor of adhesion
- 1 : 4.45
- Optimal speed
- 58 km/h
- Power-to-weight ratio
- 13.6 kW/t
- Heating Surface Equivalent
- 440.0 m²
- Cylinder volume/HSE
- 1 : 866.54
- Adhesive weight/Total
- 1 : 1.53
- Tractive force/Heating surface
- 1 : 11.20
- Grate area/Heating surface
- 1 : 59.32
- Firebox/Tube surface
- 1 : 9.50
- Total/Superheater
- 1 : 4.20