Class U-4a
Railroad Line Canadian National Railways
Country Canada
Wheel Arrangement 2'D2' h2   Boiler Pressure 19,5 kp/cm
Tender 3'3' Grate Area 6,8 m
Driving Wheel 1956 mm

Heating Surface Area

358,7 m
Leading Wheel mm Superheater Area 142 m
Trailing Wheel mm Cylinder 610 mm
Length (over all) 28 990 mm Piston Stroke 762 mm
Max. Speed (Design) km/h Max. Axle Loading 27 Mp
Max. Speed (achieved) km/h Weight on drivers 107,1 Mp
Power hpi Weight (total) 288,6Mp
Fuel Coal Power Transmission Rods
Gauge 1435 mm Tractive Effort   23,36 Mp
First Bldg. Year

 

  Number built

5

Weitgehend identisch mit der Klasse U-4b der Grand Trunk Western.