Sugar Pine Lumber Company 2-10-2 "Santafe" Locomotives in the USA

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Class Details by Steve Llanso of Sweat House Media

Class Minaret (Locobase 3250)

Data taken from Bruce (1952).

Obviously Sugar Pine -- aka the Minaret & Western Railway -- was not a penny-ante operation, not with this very large saddle-tank engine on the roster. It built on the 2-8-2ST design that had entered service on the line 3 years earlier, but was considerably larger and heavier. Indeed, of all the saddle tankers in Locobase, this was by far the biggest and heaviest.

Like the others, however, the Minaret was made redundant by the closure of the Sugar Pine operation in the 1930s.

Specifications by Steve Llanso of Sweat House Media
ClassMinaret
Locobase ID3250
RailroadSugar Pine Lumber Company
CountryUSA
Whyte2-10-2ST
Number in Class1
Road Numbers
GaugeStd
Number Built1
BuilderAlco
Year1927
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)19 / 5.79
Engine Wheelbase (ft / m)35.25 / 10.74
Ratio of driving wheelbase to overall engine wheebase 0.54
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)213,000 / 96,615
Engine Weight (lbs / kg)267,500 / 121,336
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)267,500
Tender Water Capacity (gals / ML)4000 / 15.15
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)71 / 35.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 1219
Boiler Pressure (psi / kPa)220 / 15.20
High Pressure Cylinders (dia x stroke) (in / mm)22" x 28" / 559x711
Tractive Effort (lbs / kg)52,796 / 23947.89
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.03
Heating Ability
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)33.50 / 3.11
Evaporative Heating Surface (sq ft / m2)2415 / 224.44
Superheating Surface (sq ft / m2)588 / 54.65
Combined Heating Surface (sq ft / m2)3003 / 279.09
Evaporative Heating Surface/Cylinder Volume196.04
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation7370
Same as above plus superheater percentage8844
Same as above but substitute firebox area for grate area
Power L1
Power MT