Atlantic Mining 0-4-0 "Switcher" Locomotives in the USA

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Class Details by Steve Llanso of Sweat House Media

Class Josephine Gay (Locobase 10851)

Data from Catalogue Descriptive of Simple and Compound Locomotives built by Brooks Locomotive Works, Dunkirk, NY (Buffalo, NY: Matthew-Northrup Company, 1899). Works number was 1863 Builder info from B.Rumary, 25 Kingscombe, Gurney Slade, Radstock, BA3 4TH, ENGLAND and Jeremy Lambert as supplied by Allen Stanley in March 2004.

This is a Forney type put to use well away from the usual commuter or elevated railroad venues. AMC was one of the larger copper-mining concerns to explore the deposits in Houghton County, Michigan.

Specifications by Steve Llanso of Sweat House Media
ClassJosephine Gay
Locobase ID10,851
RailroadAtlantic Mining
CountryUSA
Whyte0-4-0ST
Number in Class1
Road Numbers
Gauge4' 1""
Number Built1
BuilderBrooks
Year1891
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.50 / 1.98
Engine Wheelbase (ft / m)22 / 6.71
Ratio of driving wheelbase to overall engine wheebase 0.30
Overall Wheelbase (engine & tender) (ft / m)22 / 6.71
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)68,800 / 31,207
Engine Weight (lbs / kg)90,800 / 41,186
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)90,800
Tender Water Capacity (gals / ML)600 / 2.27
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)1 / 0.90
Minimum weight of rail (calculated) (lb/yd / kg/m)57 / 28.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 1270
Boiler Pressure (psi / kPa)165 / 11.40
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x610
Tractive Effort (lbs / kg)17,234 / 7817.22
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.99
Heating Ability
Firebox Area (sq ft / m2)91 / 8.46
Grate Area (sq ft / m2)16.30 / 1.51
Evaporative Heating Surface (sq ft / m2)990 / 92.01
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)990 / 92.01
Evaporative Heating Surface/Cylinder Volume177.26
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2690
Same as above plus superheater percentage2690
Same as above but substitute firebox area for grate area15,015
Power L13557
Power MT227.96