Lake Shore & Michigan Southern 4-4-0 "American" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 9518)

Data from the Twelfth Annual Report of the American Railway Master Mechanics' Association, May 13th-May15th, 1879, page 83.

Mr Sedgley of the LS&MS described tests between 7 wagon-top Eight-wheelers and 7 straight-boilered Moguls from Baldwin (Locobase 9517). Although Sedgley made something of the slight difference between the two types, there was not much to choose when the taller drivers of the Eight-wheelers are taken into account.

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 ID9518
RailroadLake Shore & Michigan Southern
Number in Class7
Road Numbers
Gauge4' 9.2""
Number Built7
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase
Engine Wheelbase
Ratio of driving wheelbase to overall engine wheebase
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers
Engine Weight
Tender Light Weight
Total Engine and Tender Weight
Tender Water Capacity
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)0
Geometry Relating to Tractive Effort
Driver Diameter60"
Boiler Pressure130 psi
Cylinders (dia x stroke)17" x 24"
Tractive Effort12774 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Firebox Area
Grate Area15.80 sq. ft
Evaporative Heating Surface893 sq. ft
Superheating Surface
Combined Heating Surface893 sq. ft
Evaporative Heating Surface/Cylinder Volume141.63
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2054
Same as above plus superheater percentage2054
Same as above but substitute firebox area for grate area0
Power L10
Power MT

If you have any railroad data such as diagram books, rail station plans or anything else that you would be willing to share, please contact us.