Aguas Blancas 0-6-2 Locomotives in Bolivia


Class Details by Steve Llanso of Sweat House Media

Class Iquique (Locobase 20205)

Data from Catalogue 10036-Locomotives for Export (New York City: American Locomotive Company, 1910), pp. 90-91. Works numbers were 6270-6271 in February 1905.

Ordered by W R Grace for this Chilean-Bolivian railway, this pair of radial saddle tanks received the highest two builder's numbers from Rogers before Alco officially took over the works. In fact, they were delivered as Alco products.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassIquique
Locobase ID20205
RailroadAguas Blancas
CountryBolivia
Whyte0-6-2ST
Number in Class2
Road Numbers8-9
Gauge2'6"
Number Built2
BuilderRogers
Year1905
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.50 / 2.59
Engine Wheelbase (ft / m)16 / 4.88
Ratio of driving wheelbase to overall engine wheelbase 0.53
Overall Wheelbase (engine & tender) (ft / m)16 / 4.88
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)69,000 / 31,298
Engine Weight (lbs / kg)78,000 / 35,380
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)78,000 / 35,380
Tender Water Capacity (gals / ML)1200 / 4.55
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.25 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)38 / 19
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)14" x 20" / 356x508
Tractive Effort (lbs / kg)14,409 / 6535.82
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.79
Heating Ability
Tubes (number - dia) (in / mm)104 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12 / 3.66
Firebox Area (sq ft / m2)57 / 5.30
Grate Area (sq ft / m2)11.30 / 1.05
Evaporative Heating Surface (sq ft / m2)723 / 67.17
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)723 / 67.17
Evaporative Heating Surface/Cylinder Volume202.90
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1808
Same as above plus superheater percentage1808
Same as above but substitute firebox area for grate area9120
Power L12791
Power MT267.53

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