Minneapolis, Sault Ste Marie & Atlantic / Minneapolis, St Paul & Sault Ste Marie / Wisconsin Central 2-6-0 "Mogul" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class D-2 (Locobase 8775)

Data from Soo 9 - 1943 Steam Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. See also DeGolyer, Volume 13, p. 264. Works numbers ran 8700-8702, 8705-8708, 8712-8715, 8718, 8720, 8722 in August 1887 and 8824-25, 8829, 8831-32, 8835-8837, 8843 in October 1887.

This relatively numerous class of Moguls went to the WC in 1887 as the railroad consolidated itself in the Nemesha-based line that would later become part of the Soo.

Four were sold to Wisconsin companies in the 1920s: Consolidated Water, Power & Paper Company (2106, ex-114); Fountain Campbell Lumber Company (2110, ex-118); Stack Lumber Company (2114, ex-122); and Manistique Lime & Stone Company (2119, ex-127).


Class D-2 (Locobase 11170)

Data from Soo 9 - 1943 Steam Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Works numbers were 27370-27372 in April 1903; 29259-29265, 30452-30457, 40118-40119, 40499-40513, 41078-41087, 42148-42169. Production months are shown as September 1903, June 1905, September 1906, and February 1907.

This was a large class of cross-compound Moguls of relatively generous proportions. The HP cylinder was supplied by a 12" piston valve while the LP cylinder used an Allan-Richardson slide valve.

See Railway Master Mechanic,October 1905, pp. 347-348 for a detailed description of the one of this class delivered with a Schmidt superheater.

They were later superheated by the Soo and given outside Walschaert gear; see Locobase 8764.


Class D-2-S (Locobase 8764)

Data from Soo 9 - 1943 Steam Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.

This large class was originally delivered as a cross-compound, saturated-boiler design; see Locobase 11170, except for one that was delivered with a superheater in 1905. The class apparently continued as cross-compounds until they were superheated, at which time the shops replaced 123 of the small tubes with the 21 superheater flues. They also installed outside Walschaert valve gear. Engine weight grew by about 3 tons.

Locobase's date for the superheater installation is an estimate.

All were dismantled in the 1920s and 1930s. The diagram in the Soo book shows the first to go was 160 in August 1926, the last was 155 in November 1935.


Class J/D (Locobase 8772)

Data from Soo 9 - 1943 Steam Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.

These Moguls were produced in two batches, which accounts for the break in builder's numbers: 1878-1881 and 2001-2004.


Class K/D-1 (Locobase 1326)

Data from Soo 9 - 1943 Steam Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.

Builder info from B.Rumary, 25 Kingscombe, Gurney Slade, Radstock, BA3 4TH, ENGLAND and Jeremy Lambert as supplied by Allen Stanley in March 2004.

Works #1214-1218 (April 1887), 1275-1279 (October 1887).

1349-1358 (March 1888) appear to be from the same class, but they're described as having gone to the Minneapolis, St. Paul & Sault Ste Marie (Soo Line) in 1892.

Bigger Moguls than the Baldwin Ds with larger cylinders, higher BP, and taller drivers. Original number series ran from 69 through the mid-80s, non-consecutively. Sold for scrap beginning in 1925 and ending in 1933.

(http:/fp-www.wwnet.net/`dulong/dssa/locomot.thm)

Principal Dimensions by Steve Llanso of Sweat House Media
ClassD-2D-2D-2-SJ/DK/D-1
Locobase ID8775 11,170 8764 8772 1326
RailroadWisconsin Central (Soo)Minneapolis, Sault Ste Marie & Atlantic (Soo)Minneapolis, Sault Ste Marie & Atlantic (Soo)Minneapolis, St Paul & Sault Ste Marie (Soo)Minneapolis, St Paul & Sault Ste Marie (Soo)
CountryUSAUSAUSAUSAUSA
Whyte2-6-02-6-02-6-02-6-02-6-0
Number in Class21656588
Road Numbers108-128/2100-2120108-72108-72100-107200-207
GaugeStdStdStdStdStd
Number Built216588
BuilderBurnham, Parry, Williams & CoSchenectadySooRhode IslandBrooks
Year18871903191918881888
Valve GearStephensonStephensonWalschaertStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)15.50 / 4.7214 / 4.2714 / 4.2715.25 / 4.6515.50 / 4.72
Engine Wheelbase (ft / m)23.96 / 7.3021.58 / 6.5821.58 / 6.5822.75 / 6.9323 / 7.01
Ratio of driving wheelbase to overall engine wheebase 0.65 0.65 0.65 0.67 0.67
Overall Wheelbase (engine & tender) (ft / m)45.75 / 13.9450.92 / 15.5245.60 / 13.9048.83 / 14.88
Axle Loading (Maximum Weight per Axle) (lbs / kg)44,800 / 20,321
Weight on Drivers (lbs / kg)89,900 / 40,778125,000 / 56,699128,160 / 58,13287,690 / 39,77698,000 / 44,452
Engine Weight (lbs / kg)107,050 / 48,557148,000 / 67,132151,060 / 68,520103,540 / 46,965114,500 / 51,936
Tender Loaded Weight (lbs / kg)68,100 / 30,890121,700 / 55,202121,700 / 55,20270,810 / 32,11993,600 / 42,456
Total Engine and Tender Weight (lbs / kg)175,150 / 79,447269,700 / 122,334272,760 / 123,722174,350 / 79,084208,100 / 94,392
Tender Water Capacity (gals / ML)3500 / 13.268000 / 30.308000 / 30.303400 / 12.884500 / 17.05
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)6 / 5.5010 / 9.1010 / 9.108 / 7.309 / 8.20
Minimum weight of rail (calculated) (lb/yd / kg/m)50 / 2569 / 34.5071 / 35.5049 / 24.5054 / 27
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)57 / 144855 / 139755 / 139757 / 144857 / 1448
Boiler Pressure (psi / kPa)145 / 10180 / 12.40180 / 12.40160 / 11160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)19" x 26" / 483x66021" x 26" / 533x660 (1)20" x 26" / 508x66019" x 24" / 483x61019" x 24" / 483x610
Low Pressure Cylinders (dia x stroke) (in / mm)32.5" x 26" / 826x660 (1)
Tractive Effort (lbs / kg)20,295 / 9205.6722,502 / 10206.7528,931 / 13122.9020,672 / 9376.6720,672 / 9376.67
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.43 5.56 4.43 4.24 4.74
Heating Ability
Firebox Area (sq ft / m2)129.10 / 11.99142.58 / 13.25143 / 13.29139.61 / 12.97126.30 / 11.74
Grate Area (sq ft / m2)17.24 / 1.6038.96 / 3.6238 / 3.5319.16 / 1.7820.50 / 1.91
Evaporative Heating Surface (sq ft / m2)1643 / 152.641849 / 171.841385 / 128.721262 / 117.291286 / 119.52
Superheating Surface (sq ft / m2)267 / 24.81
Combined Heating Surface (sq ft / m2)1643 / 152.641849 / 171.841652 / 153.531262 / 117.291286 / 119.52
Evaporative Heating Surface/Cylinder Volume192.57354.80146.50160.24163.29
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation25007013684030663280
Same as above plus superheater percentage25007013793430663280
Same as above but substitute firebox area for grate area18,72025,66429,85822,33820,208
Power L136953387785937833701
Power MT271.84179.21405.57285.33249.77

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