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Canadian National class U-1f
In the line of 4-8-2 locomotives designated U-1 by the Canadian National, the U-1f was the last class that followed in 1944, 14 years after the U-1e. This did not only have a larger boiler and higher pressure, an incr...
General
| Property | Canadian National class U-1fRemove |
|---|---|
| Built | 1944 |
| Manufacturers | Montreal Locomotive Works |
| Wheel arrangement | 4-8-2 (Mountain) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Canadian National class U-1fRemove |
|---|---|
| Rigid wheelbase | 5.79 m |
| Service weight | 165.9 t |
| Adhesive weight | 107.5 t |
| Axle load | 26.9 t |
| Total weight | 293.7 t |
| Water capacity | 41,640 l |
| Fuel capacity | 18,927 l (oil) |
Boiler
| Property | Canadian National class U-1fRemove |
|---|---|
| Grate area | 6.522 m² |
| Firebox surface | 35.861 m² |
| Tube heating surface | 297.104 m² |
| Evaporative heating surface | 332.965 m² |
| Superheater surface | 145.858 m² |
| Total heating surface | 478.8 m² |
Power plant
| Property | Canadian National class U-1fRemove |
|---|---|
| Driver diameter | 1,854 mm |
| Boiler pressure | 17.9 bar |
| Expansion type | simple expansion |
| Cylinders | two, 610 x 762 mm |
Power
| Property | Canadian National class U-1fRemove |
|---|---|
| Power source | steam |
| Estimated power | 2,983 kW (4,056 PS) |
| Starting effort | 232.7 kN |
Calculated values
| Property | Canadian National class U-1fRemove |
|---|---|
| Factor of adhesion | 1 : 4.53 |
| Optimal speed | 79 km/h |
| Power-to-weight ratio | 18.0 kW/t |
| Heating Surface Equivalent | 804.0 m² |
| Cylinder volume/HSE | 1 : 553.24 |
| Adhesive weight/Total | 1 : 1.54 |
| Tractive force/Heating surface | 1 : 10.15 |
| Grate area/Heating surface | 1 : 73.42 |
| Firebox/Tube surface | 1 : 8.28 |
| Total/Superheater | 1 : 2.28 |
