Ingenio San Luis 2-6-0 Locomotives in the Dominican_Republic


Class Details by Steve Llanso of Sweat House Media

Class 9 (Locobase 15256)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 72, p. 68. Works number was 58051 in Ocrober 1924.

This oil-burning plantation Mogul later gained a name--Mata-Mamon--in 1939. It was later sold to Ozonia Sugar Company's Central Ozama where it operated until retired in 1956.


Class Santiago (Locobase 14773)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 63, p. 286. Works number was 51267 in February 1919.

This superheated plantation Mogul duplicated the dimensions of the earlier San Jose engine La Borda. Like the La Borda (Locobase 14479), the Santiago used the double-loop superheater whose separate specification within the Baldwin spec shows that only two of the tubes in the boiler were as small as 2" (50.8 mm) diameter. Six more tubes measured 3" (76.2 mm) and the 24 flues that held the twelve double-looped elements had the same diameter. Six inch (254 mm) piston valves admitted the drier steam to the cylinders.

Other components included the Radley & Hunter diamond stack to suppress sparks.

Principal Dimensions by Steve Llanso of Middle Run Media
Class9Santiago
Locobase ID15256 14773
RailroadIngenio San LuisIngenio San Luis
CountryDominican RepublicDominican Republic
Whyte2-6-02-6-0
Number in Class11
Road Numbers98
Gauge2'6"2'6"
Number Built11
BuilderBaldwinBaldwin
Year19241919
Valve GearWalschaertWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)7 / 2.137 / 2.13
Engine Wheelbase (ft / m)13.50 / 4.1112.75 / 3.89
Ratio of driving wheelbase to overall engine wheelbase 0.52 0.55
Overall Wheelbase (engine & tender) (ft / m)36.85 / 11.2335.85 / 10.93
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)41,500 / 18,82437,000 / 16,783
Engine Weight (lbs / kg)48,000 / 21,77243,000 / 19,504
Tender Loaded Weight (lbs / kg)46,000 / 20,86541,000 / 18,597
Total Engine and Tender Weight (lbs / kg)94,000 / 42,63784,000 / 38,101
Tender Water Capacity (gals / ML)2000 / 7.581800 / 6.82
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)800 / 3028 3.50 / 3
Minimum weight of rail (calculated) (lb/yd / kg/m)23 / 11.5021 / 10.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)33 / 83833 / 838
Boiler Pressure (psi / kPa)170 / 1170185 / 1280
High Pressure Cylinders (dia x stroke) (in / mm)12" x 16" / 305x40611" x 16" / 279x406
Tractive Effort (lbs / kg)10,089 / 4576.309225 / 4184.39
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.11 4.01
Heating Ability
Tubes (number - dia) (in / mm)73 - 2" / 512 - 3" / 76
Flues (number - dia) (in / mm)30 - 3" / 76
Flue/Tube length (ft / m)11.33 / 3.4510.50 / 3.20
Firebox Area (sq ft / m2)39 / 3.6231 / 2.88
Grate Area (sq ft / m2)8 / 0.74 7.50 / 0.70
Evaporative Heating Surface (sq ft / m2)469 / 43.59287 / 26.66
Superheating Surface (sq ft / m2)90 / 8.36
Combined Heating Surface (sq ft / m2)469 / 43.59377 / 35.02
Evaporative Heating Surface/Cylinder Volume223.93163.08
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation13601388
Same as above plus superheater percentage13601721
Same as above but substitute firebox area for grate area66307111
Power L129647239
Power MT472.371293.99

All material Copyright © SteamLocomotive.com
Wes Barris