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

Class Details by Steve Llanso of Sweat House Media

Class La Quinta (Locobase 14763)

Data from Baldwin Locomotive Works, Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 78, pp. 84. Works number was 58417 in May 1925.

This Mogul was identical to the Central Playa engine delivered to that Puerto Rican sugar mill in 1920 (Locobase 14487), except that the later locomotive burned coal. Owned by the Compania Azucarera El Ejemplo, which was based in Humacao, PR.

Principal Dimensions by Steve Llanso of Sweat House Media
ClassLa Quinta
Locobase ID14,763
RailroadCentral Ejemplo
Number in Class1
Road Numbers5
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)7 / 2.13
Engine Wheelbase (ft / m)13.50 / 4.11
Ratio of driving wheelbase to overall engine wheebase 0.52
Overall Wheelbase (engine & tender) (ft / m)32.17 / 10.53
Axle Loading (Maximum Weight per Axle) (lbs / kg)12,333 / 5594
Weight on Drivers (lbs / kg)40,000 / 18,144
Engine Weight (lbs / kg)46,000 / 20,865
Tender Loaded Weight (lbs / kg)33,500 / 15,195
Total Engine and Tender Weight (lbs / kg)79,500 / 36,060
Tender Water Capacity (gals / ML)1500 / 5.68
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)3 / 2.30
Minimum weight of rail (calculated) (lb/yd / kg/m)22 / 11
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)33 / 838
Boiler Pressure (psi / kPa)185 / 12.80
High Pressure Cylinders (dia x stroke) (in / mm)11" x 16" / 279x406
Tractive Effort (lbs / kg)9225 / 4184.39
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.34
Heating Ability
Firebox Area (sq ft / m2)42 / 3.92
Grate Area (sq ft / m2) 9.10 / 0.85
Evaporative Heating Surface (sq ft / m2)395 / 36.79
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)395 / 36.79
Evaporative Heating Surface/Cylinder Volume224.45
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1684
Same as above plus superheater percentage1684
Same as above but substitute firebox area for grate area7770
Power L13498
Power MT578.38

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