New Niquero Sugar Company 2-8-0 Locomotives in Cuba

Class Details by Steve Llanso of Sweat House Media

Class 7 (Locobase 14900)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 64, pp. 277 and 78, pp. 67+. Works numbers were 54009 in November 1920 and 58755 in October 1925.

When this Oriente Province central decided its Moguls were not quite powerful enough for its maximum 2.4% grades, the sugar processor had to take account of the tight, 24 degree curves on its line. So it bought an oil-burning plantation Consolidation design from Eddystone that featured more cylinder volume and smaller drivers to generate more tractive effort. But the driving wheelbase grew by less than a foot and axle loading was still under ten tons. Four years later, the company took delivery of a duplicate.

Both were later sold to the Central San Jose, which was renamed after the 1959 Revolucion and nationalization for los Hermanos Ameijeiras. The engines were renumbered 1667 and 1373.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID14900
RailroadNew Niquero Sugar Company
Number in Class2
Road Numbers7-8 / 1667, 1373
Number Built2
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)10.50 / 3.20
Engine Wheelbase (ft / m)18.08 / 5.51
Ratio of driving wheelbase to overall engine wheelbase 0.58
Overall Wheelbase (engine & tender) (ft / m)50.37 / 15.35
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)79,650 / 36,129
Engine Weight (lbs / kg)89,850 / 40,755
Tender Loaded Weight (lbs / kg)57,500 / 26,082
Total Engine and Tender Weight (lbs / kg)147,350 / 66,837
Tender Water Capacity (gals / ML)3000 / 11.36
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)1200 / 4542
Minimum weight of rail (calculated) (lb/yd / kg/m)33 / 16.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)37 / 940
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)16" x 20" / 406x508
Tractive Effort (lbs / kg)18,819 / 8536.16
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.23
Heating Ability
Tubes (number - dia) (in / mm)143 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)14.98 / 4.57
Firebox Area (sq ft / m2)63 / 5.86
Grate Area (sq ft / m2)15.90 / 1.48
Evaporative Heating Surface (sq ft / m2)1179 / 109.57
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1179 / 109.57
Evaporative Heating Surface/Cylinder Volume253.32
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2544
Same as above plus superheater percentage2544
Same as above but substitute firebox area for grate area10,080
Power L13167
Power MT350.64

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