Milwaukee Lake Shore & Western / Milwaukee, Lake Shore & Western 2-6-0 "Mogul" Locomotives in the USA

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Class Details by Steve Llanso of Sweat House Media

Class I-1 (Locobase 7550)

Data from C & NW 1 - 1905 Locomotive Diagrams books supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Works numbers were 2310-2314 in January 1890 and 2512-2516 in July.


Class I-2 (Locobase 7551)

Data from C & NW 1 - 1905 Locomotive Diagrams books supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.

These two Rhodies differed from the batch of ten Moguls delivered in the previous year (Locobase 7550) in having a slightly larger grate and four fewer tubes. In 1893 the MLS&W was taken over by the Chicago & North Western and the two locomotives were renumbered.

In September 1920, the 1012 was sold to the Sever-Anderson Logging Company of Green Bay, Wisconsin.

The 929 remained with the C&NW until it was scrapped in February 1926.


Class I-4 (Locobase 7552)

Data from C & NW 1 - 1905 Locomotive Diagrams books supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Works numbers were 1871-1873 in September 1887.

A trio delivered to the MLS&W a few years after the first couple of batches, these were smaller and lighter. In 1893, the MLS&W was taken over by the Chicago & North Western for its Ashland Division.

Thirty years later all three were scrapped in April 1923.

Specifications by Steve Llanso of Sweat House Media
ClassI-1I-2I-4
Locobase ID7550 7551 7552
RailroadMilwaukee Lake Shore & Western (C&NW)Milwaukee, Lake Shore & Western (C&NW)Milwaukee, Lake Shore & Western (C&NW)
CountryUSAUSAUSA
Whyte2-6-02-6-02-6-0
Number in Class1023
Road Numbers20, 30-32, 51, 102-106/102-1006, 920, 930-32, 951112-113/ 1012, 929992-993, 996
GaugeStdStdStd
Number Built1023
BuilderRhode IslandRhode IslandRhode Island
Year189018911887
Valve GearStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)15.25 / 4.6515.25 / 4.6514.75 / 4.50
Engine Wheelbase (ft / m)22.75 / 6.9322.75 / 6.9322.25 / 6.78
Ratio of driving wheelbase to overall engine wheebase 0.67 0.67 0.66
Overall Wheelbase (engine & tender) (ft / m)44 / 13.4144 / 13.4143.42 / 13.23
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)89,100 / 40,41588,100 / 39,96286,000 / 39,009
Engine Weight (lbs / kg)103,500 / 46,947103,500 / 46,94798,000 / 44,452
Tender Loaded Weight (lbs / kg)66,800 / 30,30066,800 / 30,300
Total Engine and Tender Weight (lbs / kg)170,300 / 77,247170,300 / 77,247
Tender Water Capacity (gals / ML)3500 / 13.263500 / 13.263000 / 11.36
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)8 / 7.308 / 7.307 / 6.40
Minimum weight of rail (calculated) (lb/yd / kg/m)50 / 2549 / 24.5048 / 24
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)59 / 149959 / 149959 / 1499
Boiler Pressure (psi / kPa)165 / 11.40165 / 11.40150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x61018" x 24" / 457x61018" x 24" / 457x610
Tractive Effort (lbs / kg)18,484 / 8384.2118,484 / 8384.2116,804 / 7622.18
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.82 4.77 5.12
Heating Ability
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)18.96 / 1.7619.30 / 1.7917.50 / 1.63
Evaporative Heating Surface (sq ft / m2)
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)
Evaporative Heating Surface/Cylinder Volume
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation312831852625
Same as above plus superheater percentage312831852625
Same as above but substitute firebox area for grate area
Power L1
Power MT

Reference