Saginaw & Manistee Lumber Company 2-6-0 "Mogul" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class August Lindstrom (Locobase 11493)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volumes 26, p. 268 and 31, p. 107. Works numbers were 23883 in March 1904 and 32249 in November 1907.

For some reason the first of these 2 little Moguls carried the builder's number on the number plate - certainly inflated the public image of the rolling stock of this Williams, Ariz lumber railroad. The 3's specifications show a heavier engine with a relatively precise adhesion weight estimate of 90,850 lb and an engine weight of 106,730 lb.

The S & ML of Arizona was a subsidiary of the Michigan lumber company; it obtained a lease of forest lands on the northern rim of the Grand Canyon in 1911 and these 2-6-0s operated in the high desert well into the 1950s.

Specifications by Steve Llanso of Sweat House Media
ClassAugust Lindstrom
Locobase ID11,493
RailroadSaginaw & Manistee Lumber Company
Number in Class2
Road Numbers23883 / 2-3
Number Built2
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)11.50
Engine Wheelbase (ft)19.33
Ratio of driving wheelbase to overall engine wheebase 0.59
Overall Wheelbase (engine & tender) (ft)
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)86,000
Engine Weight (lbs)102,000
Tender Loaded Weight (lbs)100,000
Total Engine and Tender Weight (lbs)202,000
Tender Water Capacity (gals)5000
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)48
Geometry Relating to Tractive Effort
Driver Diameter (in)50
Boiler Pressure (psi)180
High Pressure Cylinders (dia x stroke) (in)18" x 24"
Tractive Effort (lbs)23,795
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.61
Heating Ability
Firebox Area (sq ft)118.90
Grate Area (sq ft)20.70
Evaporative Heating Surface (sq ft)1263
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1263
Evaporative Heating Surface/Cylinder Volume178.68
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3726
Same as above plus superheater percentage3726
Same as above but substitute firebox area for grate area21,402
Power L13942
Power MT303.16

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