Juncos Central 2-6-0 "Mogul" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 14761)

Data from Baldwin Locomotive Works Negative 7786 as archived at Flicker, http://www.flickr.com/photos/fredandrebecca/4389039935/in/pool-1209499@N23, last accessed 22 December 2012. See also DeGolyer, Vol 63, pp. 265. Works number was 54136 in November 1920.

A comment on the flickr website from a "PR RR Historian" gave a full account of this locomotive's checkered history:"For reasons never satisfactorily given, this locomotive, the second # 1 for Central Juncos [of Las Piedras, PR], only worked the railroad for a very short period of time before being sold off of the Island to a mill in the Dominican Republic in 1922."

Specifications by Steve Llanso of Sweat House Media
Locobase ID14,761
RailroadJuncos Central
Number in Class1
Road Numbers1
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)7
Engine Wheelbase (ft)13.50
Ratio of driving wheelbase to overall engine wheebase 0.52
Overall Wheelbase (engine & tender) (ft)38.33
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)40,000
Engine Weight (lbs)46,000
Tender Loaded Weight (lbs)44,000
Total Engine and Tender Weight (lbs)90,000
Tender Water Capacity (gals)2000
Tender Fuel Capacity (oil/coal) (gals/tons)4
Minimum weight of rail (calculated) (lb/yd)22
Geometry Relating to Tractive Effort
Driver Diameter (in)36
Boiler Pressure (psi)170
High Pressure Cylinders (dia x stroke) (in)12" x 16"
Tractive Effort (lbs)9248
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.33
Heating Ability
Firebox Area (sq ft)39
Grate Area (sq ft)8
Evaporative Heating Surface (sq ft)469
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)469
Evaporative Heating Surface/Cylinder Volume223.93
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1360
Same as above plus superheater percentage1360
Same as above but substitute firebox area for grate area6630
Power L13234
Power MT534.73

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