Chicago & Eastern Illinois 2-8-2 "Mikado" Type Locomotives

Introduction

The Chicago and Eastern Illinois linked Chicago to Southern Illinois, St. Louis, and Evansville. It was founded in 1877. In the beginning the C&EI hauled coal from mines in Central Illinois and Western Indiana to Chicago. Its growth was closely associated with the growth of Chicago. At the same time, the C&EI was developing itself as a bridge-route between the southern states and Chicago. In the longer run, as the demand for coal dwindled, bridge traffic would prove more economically important to the road.

The Chicago & Eastern Illinois Railway bought its first "Mikado" type locomotives from the American Locomotive Company and they were delivered in 1912. These locomotives were designated as Class N-1 and assigned road numbers 1900 through 1924. They had 63" diameter drivers, 28" x 30" cylinders, a 175 psi boiler pressure, exerted 55,533 pounds of tractive effort and each weighed 300,000 pounds. The firebox was 256.5 square feet and the evaporative heating surface was 4,259 square feet and with the superheater the combined heating surface was 5,343 square feet.

In 1918, the USRA allocated fifteen ALCO-built "Mikado-Light" locomotives to the C&E1. They were designated as Class N-2 and assigned road numbers 1925 through 1939. These locomotives had 63" diameter drivers, 26" x 30" cylinders, a 200 psi boiler pressure, they exerted 54,723 pounds of tractive effort and each weighed 290,000 pounds.

A final group of twenty 2-8-2s came from ALCO during 1922 and 1923. These locomotives were designated as Class N-3 and assigned road numbers 1940 through 1959. They had 63" diameter drivers, 28" x 30" cylinders and each weighed 317,500 pounds. The firebox was 241 square feet and the evaporative heating surface was 4,051 square feet and with the superheater the combined heating surface was 5,161 square feet. Later the boiler pressure was raised to 190 psi which increased the tractive effort to 60,293 pounds.

There are no surviving C&EI 2-8-2 "Mikado" type locomotives.

Roster by Richard Duley

ClassQty.Road NumbersYear BuiltBuilderNotes
N-1251900-19241912ALCO1
N-2151925-19391918ALCO2
N-3201940-19491922ALCO3
N-3101950-19591923ALCO4
Notes:
  1. Numbers 1900-1924 scrapped between years 1947 and 1950.
  2. USRA allocated "Mikado-Light" locomotives. Numbers 1925-1939 scrapped between the years of 1940 and 1950.
  3. Number 1943 sold to the Sydney & Louisburg in 1950 and became S&L number 101 then scrapped in 1960. All the others scrapped during years 1949 and 1950.
  4. Numbers 1950-1959 scrapped in 1949-1950.

Class Details by Steve Llanso

Class N-1sa (Locobase 1039)

Data from 1949 C & EI locomotive diagram book supplied in May 2005 by Allen Stanley from his extensive collection. Works numbers were 51845-51869 in September 1912.

Charles Kratz in Drury (1993) says of these 25 engines : "They were fast and powerful and they changed the C&EI did business."

Class N-2 (Locobase 7)

Data from C&EI 5 -1949 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Works numbers were 59503-59517 in September 1918.

Based on the light USRA design, but there are some small, slight differences. 1930 blew up on 4 January 1940 and was scrapped in the next month. The others all retired August 1949 to August 1950.

Class N-3 (Locobase 7176)

Data from C&EI 5 -1949 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Works numbers were 63568-63577 at Brooks in November 1922 and classed N-1sa, 64524-64533 at Schenectady in July 1923 and classed N-1sb.

These Mikes represent the difficulty in sustaining any effort at standardization as represented by the USRA series. Although they had very similar tube and flue layouts, their grates were considerably smaller because the firebox was 12" shorter. At the same time, cylinder volume increased when the diameters grew by 2". The cab's roof included a clerestory.


Specifications by Steve Llanso
ClassN-1saN-2N-3
Locobase ID1039 7 7176
RailroadChicago & Eastern Illinois (C&EI)Chicago & Eastern Illinois (C&EI)Chicago & Eastern Illinois (C&EI)
CountryUSAUSAUSA
Whyte2-8-22-8-22-8-2
Road Numbers1900-19241925-19391940-1959
GaugeStdStdStd
BuilderAlco-BrooksAlco-SchenectadyAlco-Schenectady
Year191219181922
Valve GearWalschaertWalschaertBaker
Locomotive Length and Weight
Driver Wheelbase16.50'16.50'16.50'
Engine Wheelbase34.92'36.08'36.25'
Ratio of driving wheelbase to overall engine wheebase 0.47 0.46 0.46
Overall Wheelbase (engine & tender)67.02'71.38'70.87'
Axle Loading (Maximum Weight per Axle)60600 lbs
Weight on Drivers220500 lbs220000 lbs232500 lbs
Engine Weight300000 lbs292000 lbs317500 lbs
Tender Light Weight171300 lbs185400 lbs192000 lbs
Total Engine and Tender Weight471300 lbs477400 lbs509500 lbs
Tender Water Capacity9000 gals10000 gals10000 gals
Tender Fuel Capacity (oil/coal)14 tons16 tons16 tons
Minimum weight of rail (calculated) on which locomotive could run92 lb/yard92 lb/yard97 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter63"63"63"
Boiler Pressure175 psi200 psi190 psi
Cylinders (dia x stroke)28" x 30"26" x 30"28" x 30"
Tractive Effort55533 lbs54724 lbs60293 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.97 4.02 3.86
Heating Ability
Firebox Area256.50 sq. ft240 sq. ft241 sq. ft
Grate Area57 sq. ft66.70 sq. ft57 sq. ft
Evaporative Heating Surface4259 sq. ft4000 sq. ft4051 sq. ft
Superheating Surface1084 sq. ft962 sq. ft1110 sq. ft
Combined Heating Surface5343 sq. ft4962 sq. ft5161 sq. ft
Evaporative Heating Surface/Cylinder Volume199.20216.98189.47
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation99751334010830
Same as above plus superheater percentage119701587513213
Same as above but substitute firebox area for grate area538655712055864
Power L1131471578614226
Power MT525.79632.77539.58

Photos

Reference

Credits

Introduction and roster provided by Richard Duley. Class details and specifications provided by Steve Llanso of Sweat House Media.