Lake Shore & Michigan Southern 2-6-0 "Mogul" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class L (Locobase 9517)

Data from the Twelfth Annual Report of the American Railway Master Mechanics' Association, May 13th-May 15th, 1879, page 83. See also DeGolyer, Volume 7, p. 31. Works numbers ran 3496, 3500-3503, 3505-3506, 3508 in November 1873; 3512, 3515-3518 in December.

In discussing the relative merits of deep versus shallow fireboxes, Mr Sedgley of the LS&MS described tests between the straight-boilered Moguls from Baldwin and 7 wagon-top Eight-wheelers (Locobase 9518). Sedgley said that the seven 2-6-0s averaged 41.95 loaded cars per train mile over a total mileage of 228,057 and consumed just a bit less coal per car than did the Eight-wheelers.

NB: Boiler pressure is an estimate and the heating surface of the tubes (no firebox area is given) is measured from the inside; water side area would be 8-10% greater.

Specifications by Steve Llanso of Sweat House Media
Locobase ID9517
RailroadLake Shore & Michigan Southern
Number in Class13
Road Numbers479-491
Gauge4' 9.2""
Number Built13
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)14.50
Engine Wheelbase (ft)22
Ratio of driving wheelbase to overall engine wheebase 0.66
Overall Wheelbase (engine & tender) (ft)
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)
Engine Weight (lbs)
Tender Loaded Weight (lbs)
Total Engine and Tender Weight (lbs)
Tender Water Capacity (gals)2500
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)
Geometry Relating to Tractive Effort
Driver Diameter (in)57
Boiler Pressure (psi)120
High Pressure Cylinders (dia x stroke) (in)16" x 24"
Tractive Effort (lbs)10,995
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Firebox Area (sq ft)
Grate Area (sq ft)15.80
Evaporative Heating Surface (sq ft)846
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)846
Evaporative Heating Surface/Cylinder Volume151.48
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1896
Same as above plus superheater percentage1896
Same as above but substitute firebox area for grate area
Power L1
Power MT

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