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Milwaukee Road classes L1 and L2

L2-a No. 8200 in a Baldwin works photo

The first Mikados on the Milwaukee Road consisted of 20 saturated class L1 locomotives built by the company's own shops in Milwaukee in 1909. They already had a combustion chamber and drivers with a diameter of 63 inc...

	Milwaukee Road classes L1 and L2 Remove
Variant	L1 L1 L2 L2-a L2-b
Built	1909
Manufacturers	Baldwin
Wheel arrangement	1D1
Gauge	1435 mm
Length
Service mass	118161 kg
Top speed
Power
Engine

General

Property	Milwaukee Road classes L1 and L2 L1 L1 L2 L2-a L2-b Remove
Built	1909
Manufacturers	Baldwin
Wheel arrangement	2-8-2 (Mikado)
Gauge	1,435 mm

Dimensions and weights

Property	Milwaukee Road classes L1 and L2 L1 L1 L2 L2-a L2-b Remove
Wheelbase	10.69 m
Total wheelbase	20.02 m
Service mass	118.2 t
Adhesion mass	91.2 t
Total mass	188 t
Rigid wheelbase	5.03 m
Water capacity	30,283 l
Fuel capacity	12.7 t (coal)

Boiler

Property	Milwaukee Road classes L1 and L2 L1 L1 L2 L2-a L2-b Remove
Grate area	4.534 m²
Firebox surface	26.199 m²
Tube heating surface	309.553 m²
Evaporative heating surface	335.752 m²
Total heating surface	335.8 m²

Power plant

Property	Milwaukee Road classes L1 and L2 L1 L1 L2 L2-a L2-b Remove
Driver diameter	1,600 mm
Boiler pressure	13.8 bar
Expansion type	simple expansion
Cylinders	two, 610 x 762 mm

Power

Property	Milwaukee Road classes L1 and L2 L1 L1 L2 L2-a L2-b Remove
Power source	steam
Estimated power	1,342 kW (1,825 PS)
Starting effort	207.4 kN

Calculated values

Property	Milwaukee Road classes L1 and L2 L1 L1 L2 L2-a L2-b Remove
Factor of adhesion	1 : 4.31
Optimal speed	40 km/h
Power-to-weight ratio	11.4 kW/t
Heating Surface Equivalent	466.7 m²
Cylinder volume/HSE	1 : 952.98
Adhesive weight/Total	1 : 1.30
Tractive force/Heating surface	1 : 12.90
Grate area/Heating surface	1 : 74.05
Firebox/Tube surface	1 : 11.82

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