Fernwood & Gulf 2-8-2 "Mikado" Locomotives in the USA

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Class Details by Steve Llanso of Sweat House Media

Class 13 (Locobase 12597)

Data from Baldwin Logging Locomotives 1913 Catalogue, p.48. See also DeGolyer, Volume 45, p. 67. Works number was 40734 in October 1913.

Logging Mikados had big boilers and relatively big grates and, perhaps most important, a light rail loading. This F & G 2-8-2 was no exception. The F&G offered a maximum of 1.5% grade and 16-degree curves (383 ft/117 metre radii); its most challenging section consisted of a 1.2% combined with a 4-degree curve. Still, the specs also show that the F&G asked Baldwin to make the Hodges outside rear truck more flexible and to shorten the boiler.

The F&G was later reorganized as the Fernwood, Columbia & Gulf when the railroad reached Columbia.

The 13 would later be operated by three other timber harvesters: Apollonia Lumber Co. of Pelahatchie, Miss; Natalbany Lumber Co, headquartered in Natalbany, LA; and Jahncke Service Co. in Bluff Creek, LA

Specifications by Steve Llanso of Sweat House Media
Class13
Locobase ID12,597
RailroadFernwood & Gulf
CountryUSA
Whyte2-8-2
Number in Class1
Road Numbers13
GaugeStd
Number Built1
BuilderBaldwin
Year1913
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.50 / 4.11
Engine Wheelbase (ft / m)28.25 / 8.61
Ratio of driving wheelbase to overall engine wheebase 0.48
Overall Wheelbase (engine & tender) (ft / m)57.29 / 17.46
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)125,500 / 56,926
Engine Weight (lbs / kg)164,700 / 74,707
Tender Loaded Weight (lbs / kg)100,300 / 45,495
Total Engine and Tender Weight (lbs / kg)265,000 / 120,202
Tender Water Capacity (gals / ML)5000 / 18.94
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT) 8.50 / 7.70
Minimum weight of rail (calculated) (lb/yd / kg/m)52 / 26
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 1270
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)20" x 24" / 508x610
Tractive Effort (lbs / kg)29,376 / 13324.75
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.27
Heating Ability
Firebox Area (sq ft / m2)135 / 12.55
Grate Area (sq ft / m2)39 / 3.62
Evaporative Heating Surface (sq ft / m2)2619 / 243.40
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)2619 / 243.40
Evaporative Heating Surface/Cylinder Volume300.12
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation7020
Same as above plus superheater percentage7020
Same as above but substitute firebox area for grate area24,300
Power L15662
Power MT397.85