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Chicago Short Line No. 1

Plant System No. 119

United States 1902 1 produced
Originally labeled as Plant System No. 119 Railway and Locomotive Engineering, March 1902

The locomotive originally intended to become Plant System No. 119 was the 20,000th locomotive built by Baldwin. It was a 4-6-0 that incorporated several novel features. One was the balanced Vauclain compound system that had its high pressure cylinders mounted between the frames and not above the low pressure cylinders as usual. Inspired by the French De Glehn compounds, the high pressure cylinders drove the second set of drivers through a crank axle, while the low pressure cylinders drove the first set of drivers. The Vanderbilt boiler had a cylindrical firebox with annular corrugations that needed no staybolts. The tender was also of the Vanderbilt type with the characteristic cylindrical water tank.

After the locomotive was completed in 1902, the Plant System refused to take it over. Instead it was sold to the Chicago Short Line and became their No. 1. They only used it for a short time and sold it to the Ashland & Western, where it still carried the number 1. Its next change of owner took place only three years later when it became No. 686 of Southern Iron & Equipment. There are indications that it was equipped with a conventional firebox there. But selling it three times was not enough, and so it came to the Atlanta, Birmingham & Atlantic in 1912 where it again got the number 1. They scrapped it in 1920.

Schematic drawing Railway and Locomotive Engineering, March 1902

Technical data

General

Built
1902
Manufacturers
Baldwin
Wheel arrangement
4-6-0 (Ten-wheeler)
Gauge
1,435 mm (Standard gauge)

Dimensions and weights

Wheelbase
8.64 m
Total wheelbase
17.07 m
Service mass
80.1 t
Adhesion mass
57.6 t
Total mass
125 t
Rigid wheelbase
4.29 m
Water capacity
18,927 l
Fuel capacity
8.6 t (coal)

Boiler

Grate area
2.533 m²
Firebox surface
11.892 m²
Tube heating surface
247.587 m²
Evaporative heating surface
259.478 m²
Total heating surface
259.5 m²

Power plant

Driver diameter
1,854 mm
Boiler pressure
13.8 bar
Expansion type
compound
Cylinders
four, HP: 381 x 660 mm and LP: 635 x 660 mm

Power

Power source
steam
Estimated power
746 kW (1,014 PS)
Starting effort
89.1 kN
Starting effort simple
106.9 kN

Calculated values

Factor of adhesion
1 : 6.34
Optimal speed
51 km/h
Power-to-weight ratio
9.3 kW/t
Heating Surface Equivalent
318.9 m²
Cylinder volume/HSE
1 : 1,127.89
Adhesive weight/Total
1 : 1.39
Tractive force/Heating surface
1 : 7.17
Grate area/Heating surface
1 : 102.44
Firebox/Tube surface
1 : 20.82
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