Chicago Southern / Chicago, Milwaukee & Saint Paul / Davenport, Rock Island & Northwestern / Milwaukee Road 4-4-0 "American" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 12469)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 23, p. 197. Works number was 18555, 18650 in January 1901 and 18699 in February 1901.

Jointly owned by the Chicago, Burlington & Quincy and the Chicago, Milwaukee & St Paul, the DRI & NW was a terminal railroad in the Tri-Cities area that spanned the Mississippi between Iowa and Illinois.

The two owners divvied up the class in 1903-1904.

The 1 came onto the Milwaukee Road roster in 1904 and was joined by the 3 in 1906. The pair was placed in its own H7-c class, numbered 521-522, 746-747, and finally 731-732 and operated for that railroad into the 1920s. Both were scrapped in September 1928.

The Burlington took the #2 in 1903, classed it as A-6, and numbered it 479. Later renumbered 200, the ex-2 was scrapped in April 1923.


Class H3 (Locobase 9873)

Data from Milwaukee Road 1930 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.


Class H3 (Locobase 9875)

Data from Milwaukee Road 1930 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.


Class H3 (Locobase 9876)

Data from Milwaukee Road 1930 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. See also DeGolyer, Volume 10, p. 20. Works numbers were 5049, 5052 5063, 5067 in April 1880p; 5092, 5097, 5120, 5123 in May; and 5134-5135 in June.

Most of these operated for more than 30 years before being scrapped in the 'teens. Ex-304 was sold to Ozone Lumber in 1913.

The Milwaukee Road diagram says that the tube heating surface area was 725 sq ft (67.35 sq m), but shows the same number of tubes of the same diameter and length as in the specs. It's possible that the H3's later boiler had 19 or 20 fewer tubes, but Locobase cannot confirm.


Class H3 (Locobase 9877)

Data from Milwaukee Road 1930 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.


Class H4 (Locobase 9878)

Data from Milwaukee Road 1930 Locomotive Diagram book supplied in May 2005 and CM&StP List and Description of Locomotives 1886 supplied in August 2013 by Allen Stanley from his extensive Raildata collection. Works numbers were 1065-1066 in September 1877; 1091, 1093 in August; 1102-1104 in September; 1273-1274, 1276, 1278-1284 in September 1880; 1322, 1324 in February 1881; 1563-1572 in May 1882.

Data above comes from the 1930 diagram and reflects the consolidation of several locomotive batches under a common update. All the Eight-wheelers came from Schenectady in 1877-1882 as passenger locomotives, but the details vary.

The first set -- 209-210, 221-225 in 1877 were delivered with 17"x 24" cylinders, grates measuring 15.8 sq ft (1.47 m) in area, 160 tubes (209-210) or 170 tubes (221-225), each 11 ft 4 in (3.45 m) long, and 61" (1,549 mm) driver centers--3" tires would yield a 67" driver diameter. They would be upgraded to the specs shown in the data table.

The other batches -- road numbers 358-367, 392-393, 538-547--defined the H4s as shown in the data. Changes from the first group included taller drivers, more cylinder volume, 5" inch longer grates and three more tubes. Adhesion weight rose by 3,400 lb (1,542 kg) and engine weight increased by 5,000 lb (2,271 kg).

All were scrapped inthe 1914-1918 period.


Class H5 (Locobase 9882)

Data from Milwaukee Road 1930 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.


Class H5 - long pattern (Locobase 9880)

Data from Milwaukee Road 1930 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.


Class H5 - long pattern (Locobase 9881)

Data from Milwaukee Road 1930 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.


Class H5 - short pattern (Locobase 9879)

Data from Milwaukee Road 1930 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.


Class H6 (Locobase 9883)

Data from Milwaukee Road 1930 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

This class had many fathers: 10 (original numbers 684-693) from Rhode Island Locomotive Works, 1 from Brooks, 10 from Cooke (721-730), 10 from Grant (works #1723-1731 produced in December 1887, road numbers 731-740).


Class H7 (Locobase 9884)

Data from Milwaukee Road 1930 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.


Class H7 (Locobase 9886)

Data from Milwaukee Road 1930 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.


Class H8 (Locobase 9874)

Data from Milwaukee Road 1945 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. See also "Locomotive Building," The Railroad Gazette, Vol XXXVIII, No 17 (28 April 1905), p 149.

This set of relatively large Eight-wheelers came from the Paterson, NJ builder as the CS was completing its construction from Chicago to Terre Haute. The 1905 order description included a count of 270 2" tubes, which resulted in a higher heating surface area than the 1945 diagram showed. The 1945 diagram revealed that the firebox heating surface included 12 sq ft of arch tubes.

The CS was reorganized with the Southern Indiana Railroad in 1910 as the Chicago, Terre Haute & Southeastern. And in 1921, the Milwaukee Road negotiated a 999-year lease on the road. That's when this nonet received its H8 class ID and higher road numbers.

Specifications by Steve Llanso of Sweat House Media
Class1H3H3H3H3
Locobase ID12469 9873 9875 9876 9877
RailroadDavenport, Rock Island & Northwestern (CMStP&P)Milwaukee Road (CMStP&P)Milwaukee Road (CMStP&P)Chicago, Milwaukee & Saint Paul (CMStP&P)Milwaukee Road (CMStP&P)
CountryUSAUSAUSAUSAUSA
Whyte4-4-04-4-04-4-04-4-04-4-0
Number in Class3142106
Road Numbers1-386-99107-108299-307 / 116-124165-170
GaugeStdStdStdStdStd
Number Built3142106
BuilderBurnham, Williams & CoTauntonPittsburghBurnham, Parry, Williams & Coseveral
Year19011873187918801871
Valve GearStephensonStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase 8.75' 7.50'8'8' 7.25'
Engine Wheelbase23.75'21.50'21.67'21'21.33'
Ratio of driving wheelbase to overall engine wheebase 0.37 0.35 0.37 0.38 0.34
Overall Wheelbase (engine & tender)52.48'43.50'43.75'43.33'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers67000 lbs40000 lbs42800 lbs42750 lbs40400 lbs
Engine Weight106000 lbs65700 lbs72700 lbs68550 lbs66650 lbs
Tender Light Weight70000 lbs55000 lbs52600 lbs60000 lbs55000 lbs
Total Engine and Tender Weight176000 lbs120700 lbs125300 lbs128550 lbs121650 lbs
Tender Water Capacity3800 gals2000 gals3200 gals2000 gals2000 gals
Tender Fuel Capacity (oil/coal)4 tons4 tons4.5 tons4 tons
Minimum weight of rail (calculated)56 lb/yard33 lb/yard36 lb/yard36 lb/yard34 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter68"63"62"63"63"
Boiler Pressure180 psi130 psi130 psi130 psi130 psi
Cylinders (dia x stroke)18" x 24"16" x 24"16" x 24"16" x 24"16" x 24"
Tractive Effort17496 lbs10776 lbs10950 lbs10776 lbs10776 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.83 3.71 3.91 3.97 3.75
Heating Ability
Firebox Area144.50 sq. ft96 sq. ft92.20 sq. ft98 sq. ft90 sq. ft
Grate Area17.60 sq. ft14.50 sq. ft14.30 sq. ft15 sq. ft14.50 sq. ft
Evaporative Heating Surface1623 sq. ft806 sq. ft956 sq. ft933 sq. ft798 sq. ft
Superheating Surface
Combined Heating Surface1623 sq. ft806 sq. ft956 sq. ft933 sq. ft798 sq. ft
Evaporative Heating Surface/Cylinder Volume229.61144.31171.17167.05142.88
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation31681885185919501885
Same as above plus superheater percentage31681885185919501885
Same as above but substitute firebox area for grate area2601012480119861274011700
Power L167693143340834783050
Power MT445.46346.46351.09358.72332.88

Specifications by Steve Llanso of Sweat House Media
ClassH4H5H5 - long patternH5 - long patternH5 - short pattern
Locobase ID9878 9882 9880 9881 9879
RailroadMilwaukee Road (CMStP&P)Milwaukee Road (CMStP&P)Milwaukee Road (CMStP&P)Milwaukee Road (CMStP&P)Milwaukee Road (CMStP&P)
CountryUSAUSAUSAUSAUSA
Whyte4-4-04-4-04-4-04-4-04-4-0
Number in Class29790415
Road Numbers209-210, 221-225, 358-367, 392-393/750-768/203-231337-343315-404405-408300-314
GaugeStdStdStdStdStd
Number Built29790415
BuilderCMStP&PMilwaukeeRhode IslandManchesterRhode Island
Year18771893187918821879
Valve GearStephensonStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase 8.50' 8.50' 8.50' 8.50' 8.50'
Engine Wheelbase22.50'22.33'23.25'23.25'22.75'
Ratio of driving wheelbase to overall engine wheebase 0.38 0.38 0.37 0.37 0.37
Overall Wheelbase (engine & tender)44.71'44.87'45.54'45.54'45.04'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers50000 lbs54000 lbs55000 lbs55000 lbs52100 lbs
Engine Weight81000 lbs86000 lbs85000 lbs85000 lbs81220 lbs
Tender Light Weight60000 lbs68000 lbs60000 lbs60000 lbs60000 lbs
Total Engine and Tender Weight141000 lbs154000 lbs145000 lbs145000 lbs141220 lbs
Tender Water Capacity2800 gals3600 gals2700 gals2700 gals2700 gals
Tender Fuel Capacity (oil/coal)5 tons5 tons4.5 tons4.5 tons4.5 tons
Minimum weight of rail (calculated)42 lb/yard45 lb/yard46 lb/yard46 lb/yard43 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter69"63"63"63"63"
Boiler Pressure140 psi160 psi140 psi140 psi140 psi
Cylinders (dia x stroke)17" x 24"16" x 24"17" x 24"17" x 24"17" x 24"
Tractive Effort11962 lbs13263 lbs13101 lbs13101 lbs13101 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.18 4.07 4.20 4.20 3.98
Heating Ability
Firebox Area120 sq. ft106 sq. ft120 sq. ft120 sq. ft120 sq. ft
Grate Area17.10 sq. ft17.50 sq. ft17.20 sq. ft17.20 sq. ft17.20 sq. ft
Evaporative Heating Surface1030 sq. ft892 sq. ft1090 sq. ft1090 sq. ft1090 sq. ft
Superheating Surface
Combined Heating Surface1030 sq. ft892 sq. ft1090 sq. ft1090 sq. ft1090 sq. ft
Evaporative Heating Surface/Cylinder Volume163.36159.71172.88172.88172.88
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation23942800240824082408
Same as above plus superheater percentage23942800240824082408
Same as above but substitute firebox area for grate area1680016960168001680016800
Power L141624277394039403940
Power MT367.03349.23315.86315.86333.44

Specifications by Steve Llanso of Sweat House Media
ClassH6H7H7H8
Locobase ID9883 9884 9886 9874
RailroadMilwaukee Road (CMStP&P)Milwaukee Road (CMStP&P)Milwaukee Road (CMStP&P)Chicago Southern (CMStP&P)
CountryUSAUSAUSAUSA
Whyte4-4-04-4-04-4-04-4-0
Number in Class3118109
Road Numbers500-530700-717721-730900-908
GaugeStdStdStdStd
Number Built3118109
BuilderseveralRhode IslandSchenectadyRogers
Year1886188218891904
Valve GearStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase 8.50' 8.50' 8.50'8'
Engine Wheelbase23.25'23.25'23.25'22.83'
Ratio of driving wheelbase to overall engine wheebase 0.37 0.37 0.37 0.35
Overall Wheelbase (engine & tender)45.79'45.54'45.96'49.90'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers64000 lbs60000 lbs60000 lbs85600 lbs
Engine Weight100100 lbs94000 lbs97000 lbs131000 lbs
Tender Light Weight78000 lbs60000 lbs78000 lbs112000 lbs
Total Engine and Tender Weight178100 lbs154000 lbs175000 lbs243000 lbs
Tender Water Capacity3800 gals2700 gals2700 gals5000 gals
Tender Fuel Capacity (oil/coal)5 tons5 tons5 tons10 tons
Minimum weight of rail (calculated)53 lb/yard50 lb/yard50 lb/yard71 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter70"63"63"67"
Boiler Pressure150 psi150 psi180 psi180 psi
Cylinders (dia x stroke)18" x 24"18" x 24"17" x 24"18" x 26"
Tractive Effort14163 lbs15737 lbs16845 lbs19237 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.52 3.81 3.56 4.45
Heating Ability
Firebox Area123 sq. ft127 sq. ft130 sq. ft148 sq. ft
Grate Area17.50 sq. ft17.20 sq. ft17 sq. ft26.80 sq. ft
Evaporative Heating Surface1390 sq. ft1215 sq. ft1177 sq. ft1729 sq. ft
Superheating Surface
Combined Heating Surface1390 sq. ft1215 sq. ft1177 sq. ft1729 sq. ft
Evaporative Heating Surface/Cylinder Volume196.64171.89186.68225.79
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2625258030604824
Same as above plus superheater percentage2625258030604824
Same as above but substitute firebox area for grate area18450190502340026640
Power L14964412254776481
Power MT341.99302.91402.49333.84

Reference


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