Illinois Central 2-4-4 Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 221/225 (Locobase 6981)

Data from IC 1911 locomotive data tables supplied in May 2005 by Allen Stanley from his extensive Raildata collection. See also E E R Tratman, "Tank Locomotives", Official Proceedings of the Western Railway Club (Chicago: W F Hall Printing Company, 1903), pp. 342 et seq. Works numbers were 3183, 3199, 3196 in January 1883, 3202-3203 in February, 3208 in March

These Forneys were the first of a large fleet of several arrangements that pulled short-haul commuter traffic in the Chicago area. The 1402 had a slightly larger grate that measured 13.2 sq ft. in area. That was the prototype for a larger batch described in Locobase 6982.

Like most of the others, these tanks were rated by the IC at 70,000 miles between general repairs. That number means a bit more if we can establish how many daily miles such high-intensity service might have racked up.


Class 223/1409 (Locobase 6948)

Data from IC 1913ca locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. See also E E R Tratman, "Tank Locomotives", Official Proceedings of the Western Railway Club (Chicago: W F Hall Printing Company, 1903), pp. 342 et seq.

This was the Forney design that pulled short-haul commuter traffic in the Chicago area. The first two delivered in 1885 as 223-224. In 1887-1890, the shops added 56-60, 62-63, and 76. The class was renumbered in 1890 as 209-218 and renumbered later by adding 1200 to each number.


Class 225 / 1403 (Locobase 6982)

Data from IC 1911 locomotive data tables supplied in May 2005 by Allen Stanley from his extensive Raildata collection. See also E E R Tratman, "Tank Locomotives", Official Proceedings of the Western Railway Club (Chicago: W F Hall Printing Company, 1903), pp. 342 et seq.

These Forneys were the first of a large fleet of several arrangements that pulled short-haul commuter traffic in the Chicago area.

Specifications by Steve Llanso of Sweat House Media
Class221/225223/1409225 / 1403
Locobase ID6981 6948 6982
RailroadIllinois Central (IC)Illinois Central (IC)Illinois Central (IC)
CountryUSAUSAUSA
Whyte2-4-4T2-4-4T2-4-4T
Number in Class6126
Road Numbers221/225-230/203-208/1401-1406223-224 / 1409-1421225-230 / 1403-1408
GaugeStdStdStd
Number Built6126
BuilderRogersICRogers
Year188318851883
Valve GearStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)777
Engine Wheelbase (ft)29.6731.8731.67
Ratio of driving wheelbase to overall engine wheebase 0.24 0.22 0.22
Overall Wheelbase (engine & tender) (ft)29.6731.8731.67
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)49,00056,10056,000
Engine Weight (lbs)107,600117,200117,000
Tender Loaded Weight (lbs)
Total Engine and Tender Weight (lbs)107,600117,200117,000
Tender Water Capacity (gals)155015001550
Tender Fuel Capacity (oil/coal) (gals/tons) 3.502 3.50
Minimum weight of rail (calculated) (lb/yd)414747
Geometry Relating to Tractive Effort
Driver Diameter (in)56.5056.5056.50
Boiler Pressure (psi)140140140
High Pressure Cylinders (dia x stroke) (in)16" x 22"16" x 22"16" x 22"
Tractive Effort (lbs)11,86211,86211,862
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.13 4.73 4.72
Heating Ability
Firebox Area (sq ft)9890.3789.90
Grate Area (sq ft)12.701413.20
Evaporative Heating Surface (sq ft)918976977
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)918976977
Evaporative Heating Surface/Cylinder Volume179.31190.64190.83
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation177819601848
Same as above plus superheater percentage177819601848
Same as above but substitute firebox area for grate area13,72012,65212,586
Power L1362636773673
Power MT326.28289.00289.20

Reference


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