Ermita Sugar Corporation 2-8-0 Locomotives in Cuba


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 14906)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 64, p. 309. Works number was 53721 in September 1920.

Another sugar mill, this one located near Guantánamo in Oriente Province, bought one of the larger standard plantation Consolidations built at Eddystone. The design was tweaked slightly as it used 11" (279 mm) piston valves to supply steam to the cylinders and had fire tubes 3" (76 mm) shorter than most of the 2-8-0s in Cuban sugar work.

The Ermita's railway was laid out on relatively gentle lines. Maximum grade was a typical 2% while main line curves were never sharper than 10 degrees (radii of 573 feet/275 metres) and curves on the Ys (used to reverse locomotive direction) arced no more than 16 degrees (358 feet/109 metres).

A "Hereafter" note entered in the specifications suggests that an experiment in bi-directional coupling was to be abandoned: "Omit spring draft gear front of engine [e.g., drop coupler?] and provide a regular center pin for front engine truck. (To correct error in design of base engine)."

The Ermita had been erected in 1914-1915 and had come under John Randolph's control with the aid of the E Atkins & Company.

Principal Dimensions by Steve Llanso of Middle Run Media
Class1
Locobase ID14906
RailroadErmita Sugar Corporation
CountryCuba
Whyte2-8-0
Number in Class1
Road Numbers1
GaugeStd
Number Built1
BuilderBaldwin
Year1920
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)14.50 / 4.42
Engine Wheelbase (ft / m)22.17 / 6.76
Ratio of driving wheelbase to overall engine wheelbase 0.65
Overall Wheelbase (engine & tender) (ft / m)54.85 / 16.72
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)118,000 / 53,524
Engine Weight (lbs / kg)134,000 / 60,781
Tender Loaded Weight (lbs / kg)130,000 / 58,967
Total Engine and Tender Weight (lbs / kg)264,000 / 119,748
Tender Water Capacity (gals / ML)6000 / 22.73
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)2500 / 9463
Minimum weight of rail (calculated) (lb/yd / kg/m)49 / 24.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 1270
Boiler Pressure (psi / kPa)180 / 1240
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) 4.02
Heating Ability
Tubes (number - dia) (in / mm)241 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12.75 / 3.89
Firebox Area (sq ft / m2)142 / 13.20
Grate Area (sq ft / m2)29.70 / 2.76
Evaporative Heating Surface (sq ft / m2)1740 / 161.71
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1740 / 161.71
Evaporative Heating Surface/Cylinder Volume199.39
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5346
Same as above plus superheater percentage5346
Same as above but substitute firebox area for grate area25,560
Power L14211
Power MT314.70

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