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Atlanta & West Point class F

No. 425 in July 1940 at Atlanta, Georgia

The Atlanta & West Point operated a total of six Mikados of different design, which were designated class F. The first two, numbered 400 and 401, were built in 1918 by Lima. They were of the Harriman Common Standard M...

Atlanta & West Point class FRemove
Variant
425-427
Built 1923-1925
Manufacturers Lima
Wheel arrangement 1D1
Gauge 1435 mm
Length
Service mass 132449 kg
Top speed
Power
Engine

General

Property Atlanta & West Point class F
425-427
Remove
Built 1923-1925
Manufacturers Lima
Wheel arrangement 2-8-2 (Mikado)
Gauge 1,435 mm

Dimensions and weights

Property Atlanta & West Point class F
425-427
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Wheelbase 11.25 m
Total wheelbase 21.76 m
Service mass 132.4 t
Adhesion mass 102.3 t
Total mass 214.9 t
Rigid wheelbase 5.11 m
Axle load 25.6 t
Water capacity 37,854 l
Fuel capacity 14.5 t (coal)

Boiler

Property Atlanta & West Point class F
425-427
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Grate area 6.197 m²
Firebox surface 26.013 m²
Tube heating surface 324.882 m²
Evaporative heating surface 350.895 m²
Superheater surface 81.941 m²
Total heating surface 432.8 m²

Power plant

Property Atlanta & West Point class F
425-427
Remove
Driver diameter 1,600 mm
Boiler pressure 13.8 bar
Expansion type simple expansion
Cylinders two, 660 x 762 mm

Power

Property Atlanta & West Point class F
425-427
Remove
Power source steam
Estimated power 2,200 kW (2,991 PS)
Starting effort 243.4 kN

Calculated values

Property Atlanta & West Point class F
425-427
Remove
Factor of adhesion 1 : 4.12
Optimal speed 55 km/h
Power-to-weight ratio 16.6 kW/t
Heating Surface Equivalent 644.8 m²
Cylinder volume/HSE 1 : 809.54
Adhesive weight/Total 1 : 1.29
Tractive force/Heating surface 1 : 11.75
Grate area/Heating surface 1 : 69.85
Firebox/Tube surface 1 : 12.49
Total/Superheater 1 : 4.28
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