Central Azucarera de la Carlota 0-6-0 "Switcher" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 103 (Locobase 11101)

Wasatch Railroad Contractors Steam Locomotive information packet "Locomotive Equipment for Sale" dated 21 November 2009, supplemented by DeGolyer, Volume 63, pp. 213+ and Volume 78, pp. 346+. Works numbers were 52436 in October 1919, 53075-53076 in March 1920, 53181 in April, 53536 in August, 58490 in June 1925, 59268 in May 1926.

In 2009, the Philippine sugar central La Carlota, based on Occidental Negros, decided to close down its three-foot gauge operation and put all of its steam locomotives up for sale. WCR's packet of five locomotives includes four that all have the same dimensions and all of which have side tanks and tenders. Two of these -- works 53536 and 59268 -- were delivered directly to La Carlota along with two more that presumably were scrapped or deemed too far gone for sale.

Information that 52436 was produced in October 1919 as an 0-6-2T for the Yuchausti Sugar Company is unlikely to be correct as the specification shows it to have been ordered as an 0-6-0 for La Carlota.

The other locomotive initially confounded Locobase. The works number given in the sale document -- 53976 -- was attached to a much bigger 0-6-0 switcher. The answer lies in a typographical error: 53076, along with 53075, were ordered by Guy T Slaughter for La Carlota and went into service as their 101-102.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID11101
RailroadCentral Azucarera de la Carlota
Number in Class7
Road Numbers101-106
Number Built6
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.50 / 2.59
Engine Wheelbase (ft / m) 8.50 / 2.59
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)31.04 / 9.46
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)42,300 / 19,187
Engine Weight (lbs / kg)42,300 / 19,187
Tender Loaded Weight (lbs / kg)32,000 / 14,515
Total Engine and Tender Weight (lbs / kg)74,300 / 33,702
Tender Water Capacity (gals / ML)1500 / 5.68
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)2 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)24 / 12
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)33 / 838
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)12" x 16" / 305x406
Tractive Effort (lbs / kg)9495 / 4306.86
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.45
Heating Ability
Tubes (number - dia) (in / mm)94 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)9 / 2.74
Firebox Area (sq ft / m2)56 / 5.20
Grate Area (sq ft / m2)10.50 / 0.98
Evaporative Heating Surface (sq ft / m2)440 / 40.88
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)440 / 40.88
Evaporative Heating Surface/Cylinder Volume210.53
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1680
Same as above plus superheater percentage1680
Same as above but substitute firebox area for grate area8960
Power L13032
Power MT474.07

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