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French Northern Railway No. 4.061 to 4.340 “Le Boeuff”
When the existing 4-6-0 mixed traffic locomotives could no longer cope with the increasing train loads, the Nord developed new superheated locomotives for pure freight train service, which only had one leading axle . ...
| French Northern Railway No. 4.061 to 4.340 “Le Boeuff”Remove | |
|---|---|
| Variant | tender 17A |
| Built | 1912-1913, 1919, 1922, 1928-1929 |
| Manufacturers | Creusot;SFCM;Batignolles-Châtillon;SACM;Franco-Belge |
| Wheel arrangement | 1D |
| Gauge | 1435 mm |
| Length | 17458 mm |
| Service mass | 86500 kg |
| Top speed | 105 km/h |
| Power | |
| Engine |
General
| Property | French Northern Railway No. 4.061 to 4.340 “Le Boeuff”tender 17A |
|---|---|
| Built | 1912-1913, 1919, 1922, 1928-1929 |
| Manufacturers | Creusot, SFCM, Batignolles-Châtillon, SACM, Franco-Belge |
| Wheel arrangement | 2-8-0 (Consolidation) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | French Northern Railway No. 4.061 to 4.340 “Le Boeuff”tender 17A |
|---|---|
| Length | 17.46 m |
| Length loco | 11.79 m |
| Wheelbase | 8.46 m |
| Total wheelbase | 14.87 m |
| Empty mass | 78.8 t |
| Service mass | 86.5 t |
| Adhesion mass | 75.7 t |
| Total mass | 122.8 t |
| Rigid wheelbase | 5.90 m |
| Axle load | 18.6 t |
| Water capacity | 17,000 l |
| Fuel capacity | 4 t (coal) |
Boiler
| Property | French Northern Railway No. 4.061 to 4.340 “Le Boeuff”tender 17A |
|---|---|
| Grate area | 3.22 m² |
| Firebox surface | 17.38 m² |
| Tube heating surface | 195.6 m² |
| Evaporative heating surface | 212.98 m² |
| Superheater surface | 45 m² |
| Total heating surface | 258.0 m² |
Power plant
| Property | French Northern Railway No. 4.061 to 4.340 “Le Boeuff”tender 17A |
|---|---|
| Driver diameter | 1,550 mm |
| Boiler pressure | 16 bar |
| Expansion type | compound |
| Cylinders | four, HP: 420 x 640 mm and LP: 570 x 700 mm |
Power
| Property | French Northern Railway No. 4.061 to 4.340 “Le Boeuff”tender 17A |
|---|---|
| Power source | steam |
| Indicated power | 1,030 kW (1,400 PS) |
| Top speed | 105 km/h |
| Starting effort | 132.4 kN |
| Starting effort simple | 158.9 kN |
Calculated values
| Property | French Northern Railway No. 4.061 to 4.340 “Le Boeuff”tender 17A |
|---|---|
| Factor of adhesion | 1 : 5.61 |
| Optimal speed | 48 km/h |
| Power-to-weight ratio | 11.9 kW/t |
| Heating Surface Equivalent | 389.9 m² |
| Cylinder volume/HSE | 1 : 912.98 |
| Adhesive weight/Total | 1 : 1.14 |
| Tractive force/Heating surface | 1 : 10.72 |
| Grate area/Heating surface | 1 : 80.12 |
| Firebox/Tube surface | 1 : 11.25 |
| Total/Superheater | 1 : 4.73 |
