Juragua Iron 2-6-0 Locomotives in Cuba


Class Details by Steve Llanso of Sweat House Media

Class 35 (Locobase 13227)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 31, pp. 94, 202, Volume 32, p. 66. Works numbers were 32231 in November 1907, 32756 in April 1908, and 33240 in March 1909.

Locobase 11850 describes the earlier deliveries of small Moguls in the 1890s. This trio either supplemented the existing stud or replaced some of the original engines.


Class 4 (Locobase 11850)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 13, p. 80; Vol 14, p. 150. Works numbers were 8027 in July 1886, 8143 in September, 9280 in June 1888, 9472 in September, 9591in October, and 11519 in January 1891. Only the last bore a name: Eben F Barker.

Performance benchmarks for this class of good-sized Moguls for the skinny gauge included the ability to scale 2 7/10% (143 to the mile) grades and negotiate 30-deg curves. The design had a short, wide firebox - in fact, the width was greater than the length. The line was well-built and featured 56-lb/yard rail.

The Juragua Iron Company was the first American company to invest in mining in Cuba. Controlled by the Bethlehem Steel Corporation and after 1894, its subsidiary, the Juragua's interest was in exploiting the iron ore deposits in Santiago province in Cuba. For a full, contemporary description of the iron ore range, see James P Kimball, "The Iron Ore Range of the Santiago District of Cuba," The Engineering and Mining Journal, Vol 38 (27 December 1884), pp. 423. Its first shipment arrived in the US in 1884, having left the Sierra Maestre mines and traveled on the 17 1/2-mile railway to the port of Santiago.

Principal Dimensions by Steve Llanso of Middle Run Media
Class354
Locobase ID13227 11850
RailroadJuragua IronJuragua Iron
CountryCubaCuba
Whyte2-6-02-6-0
Number in Class36
Road Numbers35, 37, 414-5, 8-10, 18
Gauge3'3'
Number Built36
BuilderBurnham, Parry, Williams & CoBurnham, Parry, Williams & Co
Year19071886
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)9 / 2.749 / 2.74
Engine Wheelbase (ft / m)15.42 / 4.7015.42 / 4.70
Ratio of driving wheelbase to overall engine wheelbase 0.58 0.58
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)65,000 / 29,48457,000 / 25,855
Engine Weight (lbs / kg)74,000 / 33,56666,000 / 29,937
Tender Loaded Weight (lbs / kg)36,000 / 16,329
Total Engine and Tender Weight (lbs / kg)110,000 / 49,895
Tender Water Capacity (gals / ML)1800 / 6.821800 / 6.82
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)36 / 1832 / 16
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)37 / 94037 / 940
Boiler Pressure (psi / kPa)150 / 1030130 / 900
High Pressure Cylinders (dia x stroke) (in / mm)16" x 20" / 406x50816" x 20" / 406x508
Tractive Effort (lbs / kg)17,643 / 8002.7415,291 / 6935.89
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.68 3.73
Heating Ability
Tubes (number - dia) (in / mm)125 - 2.25" / 57125 - 2.25" / 57
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)13.33 / 4.0613.33 / 4.06
Firebox Area (sq ft / m2)73.90 / 6.8773.91 / 6.87
Grate Area (sq ft / m2)15.30 / 1.4215.30 / 1.42
Evaporative Heating Surface (sq ft / m2)1048 / 97.361048 / 97.40
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1048 / 97.361048 / 97.40
Evaporative Heating Surface/Cylinder Volume225.17225.17
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation22951989
Same as above plus superheater percentage22951989
Same as above but substitute firebox area for grate area11,0859608
Power L128172442
Power MT286.63283.35

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