2-8-0 Steam Locomotives in Cuba

Hormiguero Central


Class Details by Steve Llanso of Sweat House Media

Class 4 (Locobase 12165)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 20 p. 28 ,and Vol 30, p. 128. Works number was 14436 in September 1895 and 29277 in October 1906.

Typical 2 1/2-foot Baldwin Consolidations for Cuba delivered more than 10 years apart. The 4 came through Krajewski & Pesant (a broker responsible for many such purchases according to the Baldwin record) just before the revolution. Several years after the revolution, the Hormiguero ordered a duplicate. A third, heavier younger brother would arrive in 1911; see Locobase 13844.

A search of contemporary journals shows that Hormiguero, like other large sugar operations, was often threatened with destruction by its own workers.

The 4 later was sold to Central Espartaco and was described as "in existence" in 1995.


Class 6 (Locobase 13844)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 39, p. 199. Works number was 37142 in October 1911 and 52573 in November 1919.

Central Hormiguero had bought two Consolidations from Baldwin in earlier years (Locobase 12165) and the newest stablemate had the same boiler, grate, and power dimensions as they did. But it was four tons heavier on the drivers. The 8 was a bit heavier and burned

The Central Hormiguero was later absorbed by the Central Espartaco and the 6 and 8 were renumbered 1327 and 1329. They were reported "in existence" in 1995.


Class 7 (Locobase 13845)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 54, p. 152. Works number was 42093 in May 1915.

The CH bid welcome to 20th Century "mod cons" when it ordered this plantation Consolidation from Baldwin. The new design retained the power dimensions of the older 2-8-0s shown in in Locobases 12165 and 13844 and weighed just a ton more than the 6 of 1911, but it now sported a superheated boiler, outside constant-lead radial valve gear, and a bigger tender. Both the superheater flues and the small tubes had smaller diameters than most superheated engines, but the proportions were generous enough. Indeed, this was a big engine for the gauge in any case and its superheater provided quite a jump in effective power.

The Central Hormiguero was later absorbed by the Central Espartaco and the 7, now with road number 1328, was reported "in existence" in 1995.

Principal Dimensions by Steve Llanso of Middle Run Media
Class467
Locobase ID12165 13844 13845
RailroadHormiguero CentralHormiguero CentralHormiguero Central
CountryCubaCubaCuba
Whyte2-8-02-8-02-8-0
Number in Class212
Road Numbers4-56, 8 / 1327, 13297-8 / 1328-1329
Gauge2'6"2'6"2'6"
Number Built212
BuilderBurnham, Williams & CoBaldwinBaldwin
Year189519111915
Valve GearStephensonStephensonWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.83 / 3 9.83 / 3 9.83 / 3
Engine Wheelbase (ft / m)17.17 / 5.2317.17 / 5.2317.17 / 5.23
Ratio of driving wheelbase to overall engine wheelbase 0.57 0.57 0.57
Overall Wheelbase (engine & tender) (ft / m)43.67 / 13.31
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)54,000 / 24,49462,000 / 28,12364,000 / 29,030
Engine Weight (lbs / kg)62,000 / 28,12369,000 / 31,29872,000 / 32,659
Tender Loaded Weight (lbs / kg)50,000 / 22,68060,000 / 27,21680,000 / 36,287
Total Engine and Tender Weight (lbs / kg)112,000 / 50,803129,000 / 58,514152,000 / 68,946
Tender Water Capacity (gals / ML)2500 / 9.473000 / 11.364000 / 15.15
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 5.50 / 5
Minimum weight of rail (calculated) (lb/yd / kg/m)23 / 11.5026 / 1327 / 13.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)36 / 91436 / 91436 / 914
Boiler Pressure (psi / kPa)160 / 1100160 / 1100160 / 1100
High Pressure Cylinders (dia x stroke) (in / mm)14" x 20" / 356x50814" x 20" / 356x50814" x 20" / 356x508
Tractive Effort (lbs / kg)14,809 / 6717.2614,809 / 6717.2614,809 / 6717.26
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.65 4.19 4.32
Heating Ability
Tubes (number - dia) (in / mm)114 - 2" / 51114 - 2" / 5186 - 1.75" / 44
Flues (number - dia) (in / mm)12 - 5" / 127
Flue/Tube length (ft / m)14 / 4.2714 / 4.2713.92 / 4.24
Firebox Area (sq ft / m2)60 / 5.5860 / 5.5758 / 5.39
Grate Area (sq ft / m2)11 / 1.0211 / 1.0211 / 1.02
Evaporative Heating Surface (sq ft / m2)905 / 84.11905 / 84.08823 / 76.46
Superheating Surface (sq ft / m2)183 / 17
Combined Heating Surface (sq ft / m2)905 / 84.11905 / 84.081006 / 93.46
Evaporative Heating Surface/Cylinder Volume253.97253.97230.96
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation176017601760
Same as above plus superheater percentage176017602077
Same as above but substitute firebox area for grate area9600960010,950
Power L1324632467436
Power MT530.09461.691024.60

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