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Paris-Orléans No. 4501 to 4600

Around 1905, the PO was looking for more powerful express locomotives, since the existing 4-6-0 locomotives of series 4001 to 4084 had reached their limits. The solution was the 4-6-2 wheel arrangement, also known as ...

Paris-Orléans No. 4501 to 4600Remove
Variant
4571-4600
Built 1910-1914
Manufacturers SFCM
Wheel arrangement 2C1
Gauge 1435 mm
Length 22169 mm
Service mass 92200 kg
Top speed 120 km/h
Power
Engine

General

Property Paris-Orléans No. 4501 to 4600Remove
Built 1910-1914
Manufacturers SFCM
Wheel arrangement 4-6-2 (Pacific)
Gauge 1,435 mm

Dimensions and weights

Property Paris-Orléans No. 4501 to 4600Remove
Length 22.17 m
Length loco 13.41 m
Wheelbase 10.50 m
Service mass 92.2 t
Adhesion mass 52.7 t
Total mass 138.6 t
Rigid wheelbase 3.90 m
Water capacity 20,000 l
Fuel capacity 6 t (coal)

Boiler

Property Paris-Orléans No. 4501 to 4600Remove
Grate area 4.27 m²
Firebox surface 15.37 m²
Tube heating surface 195.6 m²
Evaporative heating surface 210.97 m²
Superheater surface 63.5 m²
Total heating surface 274.5 m²

Power plant

Property Paris-Orléans No. 4501 to 4600Remove
Driver diameter 1,850 mm
Boiler pressure 16 bar
Expansion type compound
Cylinders four, HP: 420 x 650 mm and LP: 640 x 650 mm

Power

Property Paris-Orléans No. 4501 to 4600Remove
Power source steam
Estimated power 1,600 kW (2,175 PS)
Top speed 120 km/h
Starting effort 117.8 kN
Starting effort simple 141.4 kN

Calculated values

Property Paris-Orléans No. 4501 to 4600Remove
Factor of adhesion 1 : 4.38
Optimal speed 84 km/h
Power-to-weight ratio 17.4 kW/t
Heating Surface Equivalent 414.8 m²
Cylinder volume/HSE 1 : 938.27
Adhesive weight/Total 1 : 1.75
Tractive force/Heating surface 1 : 8.97
Grate area/Heating surface 1 : 64.28
Firebox/Tube surface 1 : 12.73
Total/Superheater 1 : 3.32
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