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Great Northern (UK) class C1 (small boiler) “Klondykes”
Shortly before the turn of the century, Henry Ivatt had the task of developing a new locomotive for the increasing loads of the most important express trains. He had to measure himself against the singles from his pre...
General
| Property | Great Northern (UK) class C1 (small boiler) “Klondykes” superheated |
|---|---|
| Built | 1909, 1914-1925 |
| Manufacturers | Doncaster |
| Wheel arrangement | 4-4-2 (Atlantic) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Great Northern (UK) class C1 (small boiler) “Klondykes” superheated |
|---|---|
| Wheelbase | 8.03 m |
| Rigid wheelbase | 2.08 m |
| Total wheelbase | 14.71 m |
| Service weight | 61 t |
| Adhesive weight | 32.7 t |
| Axle load | 16.9 t |
| Total weight | 102.5 t |
| Water capacity | 16,682 l |
| Fuel capacity | 5.1 t (coal) |
Boiler
| Property | Great Northern (UK) class C1 (small boiler) “Klondykes” superheated |
|---|---|
| Grate area | 2.276 m² |
| Firebox surface | 12.728 m² |
| Tube heating surface | 95.412 m² |
| Evaporative heating surface | 108.139 m² |
| Superheater surface | 31.866 m² |
| Total heating surface | 140.0 m² |
Power plant
| Property | Great Northern (UK) class C1 (small boiler) “Klondykes” superheated |
|---|---|
| Driver diameter | 1,981 mm |
| Boiler pressure | 11.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 508 x 610 mm |
Power
| Property | Great Northern (UK) class C1 (small boiler) “Klondykes” superheated |
|---|---|
| Power source | steam |
| Estimated power | 783 kW (1,065 PS) |
| Top speed | 145 km/h |
| Starting effort | 79.1 kN |
Calculated values
| Property | Great Northern (UK) class C1 (small boiler) “Klondykes” superheated |
|---|---|
| Factor of adhesion | 1 : 4.06 |
| Optimal speed | 61 km/h |
| Power-to-weight ratio | 12.8 kW/t |
| Heating Surface Equivalent | 235.5 m² |
| Cylinder volume/HSE | 1 : 1,049.25 |
| Adhesive weight/Total | 1 : 1.86 |
| Tractive force/Heating surface | 1 : 11.80 |
| Grate area/Heating surface | 1 : 61.51 |
| Firebox/Tube surface | 1 : 7.50 |
| Total/Superheater | 1 : 3.39 |
