Braden Copper Company 2-6-6-2 Locomotives in Chile


Class Details by Steve Llanso of Sweat House Media

Class Proposed Mallet (Locobase 14001)

Data from Copy Spec 40-F-2 dated 12 January 1940 posted at [], last accessed on 17 December 2020.

Based on the Uintah tanks that operated successfully in the Nevada desert, this four-cylinder simple articulated never went into production.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassProposed Mallet
Locobase ID14001
RailroadBraden Copper Company
CountryChile
Whyte2-6-6-2T
Number in Class
Road Numbers
Gauge2'6"
Number Built
BuilderBaldwin
Year1940
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.50 / 2.29
Engine Wheelbase (ft / m)36.50 / 11.13
Ratio of driving wheelbase to overall engine wheelbase 0.21
Overall Wheelbase (engine & tender) (ft / m)36.50 / 11.13
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)200,000 / 90,719
Engine Weight (lbs / kg)
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)2000 / 7.58
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)700 / 2650
Minimum weight of rail (calculated) (lb/yd / kg/m)56 / 28
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)36 / 914
Boiler Pressure (psi / kPa)215 / 14.80
High Pressure Cylinders (dia x stroke) (in / mm)15" x 20" / 381x508 (4)
Tractive Effort (lbs / kg)45,688 / 20723.75
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.38
Heating Ability
Tubes (number - dia) (in / mm)131 - 2" / 51
Flues (number - dia) (in / mm)26 - 5.375" / 137
Flue/Tube length (ft / m)17.50 / 5.33
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)46.20 / 4.29
Evaporative Heating Surface (sq ft / m2)
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)
Evaporative Heating Surface/Cylinder Volume
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation9933
Same as above plus superheater percentage9933
Same as above but substitute firebox area for grate area
Power L1
Power MT

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