Nevada Central 2-6-0 "Mogul" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class S H H Clark (Locobase 2845)

Data from Alexander, Iron Horse, pl 74 and Baldwin Locomotive Works Specification for Engines, as digitized by the DeGolyer Library of Southern Methodist University, Volume 10, p. 188. Works numbers were 5569 and 5575 in April 1881.

Typical diamond-stacked, wood-burning narrow-gauge Moguls of the time. #1 was delivered as S H H Clark and #2 bore the name Sidney Dillon.

#2 was later was refurbished for the Grizzly Flats Railroad, a private railroad run by Disney animator Ward Kimball on his own property. Given the name Emma Nevada -- Emma (Wixom) Nevada was a well-known singer of the 1880s -- the 2 was found to be in sound operating condition and served the GFR until 1951.

Principal Dimensions by Steve Llanso of Sweat House Media
ClassS H H Clark
Locobase ID2845
RailroadNevada Central
Number in Class2
Road Numbers1-2
Number Built2
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)12 / 3.66
Engine Wheelbase (ft / m)17.83 / 5.43
Ratio of driving wheelbase to overall engine wheebase 0.67
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)37,000 / 16,783
Engine Weight (lbs / kg)
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)1400 / 5.30
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)21 / 10.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)41 / 1041
Boiler Pressure (psi / kPa)100 / 6.90
High Pressure Cylinders (dia x stroke) (in / mm)13" x 18" / 330x457
Tractive Effort (lbs / kg)6307 / 2860.81
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.87
Heating Ability
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2) 8.80 / 0.82
Evaporative Heating Surface (sq ft / m2)
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)
Evaporative Heating Surface/Cylinder Volume
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation880
Same as above plus superheater percentage880
Same as above but substitute firebox area for grate area
Power L1
Power MT

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Wes Barris