Nacozari 2-8-0 Locomotives in Mexico


Class Details by Steve Llanso of Sweat House Media

Class 102 (Locobase 12812)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 28, p. 229 and Volume 29, p.99. Works numbers were 26350 in August 1905, 28464 in June 1906, 32216 in November 1907.

The Ferrocarril de Nacozari served copper mines in Sonora state by taking the ore to the big smelter at Moctezuma. At Nacozari de Garcia, the road connected to the branch of the El Paso & Southwestern that ran north to the border town of Douglas, Ariz.

Note: the suffix "de Garcia" is a honorific, saluting Jesus Garcia Corona, the engineer who saved the town from a dynamite explosion on 7 November 1907. Garcia ran the blazing 6-car train 6 kilometres from town before it exploded, demolished the train, and killed him and 12 rail workers.

Principal Dimensions by Steve Llanso of Middle Run Media
Class102
Locobase ID12812
RailroadNacozari
CountryMexico
Whyte2-8-0
Number in Class1
Road Numbers102-104
GaugeStd
Number Built1
BuilderBurnham, Williams & Co
Year1905
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.67 / 4.17
Engine Wheelbase (ft / m)21.83 / 6.65
Ratio of driving wheelbase to overall engine wheelbase 0.63
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)120,000 / 54,431
Engine Weight (lbs / kg)136,000 / 61,689
Tender Loaded Weight (lbs / kg)90,000 / 40,823
Total Engine and Tender Weight (lbs / kg)226,000 / 102,512
Tender Water Capacity (gals / ML)4500 / 17.05
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)14 / 13
Minimum weight of rail (calculated) (lb/yd / kg/m)50 / 25
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)51 / 1295
Boiler Pressure (psi / kPa)180 / 1240
High Pressure Cylinders (dia x stroke) (in / mm)20" x 24" / 508x610
Tractive Effort (lbs / kg)28,800 / 13063.48
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.17
Heating Ability
Tubes (number - dia) (in / mm)280 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12.42 / 3.79
Firebox Area (sq ft / m2)162.40 / 15.09
Grate Area (sq ft / m2)32.90 / 3.06
Evaporative Heating Surface (sq ft / m2)1971 / 183.18
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1971 / 183.18
Evaporative Heating Surface/Cylinder Volume225.77
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5922
Same as above plus superheater percentage5922
Same as above but substitute firebox area for grate area29,232
Power L14877
Power MT358.40

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