Tubarao a Ararangua 4-6-0 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 21124)

Data from Alco class 460-81 Order C-555 builder's card supplied in February 2023 by Teemu Koivumaki.. Works numbers were 60510-60511 in June 1919.

A decade after Alco turned out a trio of Ten-wheelers for the Timbo a Propia (Locobase 20191), its Paterson, NJ subsidiary produced another two for the T-A to the same specifications. Its operator was a new coal road in Santa Catharina state built by the Brazilian government and leased to the Cia Brasiliera Carbonifera de Ararangua.

Principal Dimensions by Steve Llanso of Middle Run Media
Class1
Locobase ID21124
RailroadTubarao a Ararangua
CountryBrazil
Whyte4-6-0
Number in Class2
Road Numbers1-2
GaugeMetre
Number Built2
BuilderAlco-Cooke
Year1919
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)10 / 3.05
Engine Wheelbase (ft / m)19.33 / 5.89
Ratio of driving wheelbase to overall engine wheelbase 0.52
Overall Wheelbase (engine & tender) (ft / m)43 / 13.11
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)63,000 / 28,576
Engine Weight (lbs / kg)80,500 / 36,514
Tender Loaded Weight (lbs / kg)59,000 / 26,762
Total Engine and Tender Weight (lbs / kg)139,500 / 63,276
Tender Water Capacity (gals / ML)2600 / 9.85
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)4 / 3.60
Minimum weight of rail (calculated) (lb/yd / kg/m)35 / 17.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)45 / 1143
Boiler Pressure (psi / kPa)160 / 1100
High Pressure Cylinders (dia x stroke) (in / mm)16" x 20" / 406x508
Tractive Effort (lbs / kg)15,474 / 7018.90
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.07
Heating Ability
Tubes (number - dia) (in / mm)132 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11.79 / 3.59
Firebox Area (sq ft / m2)87 / 8.08
Grate Area (sq ft / m2)15.20 / 1.41
Evaporative Heating Surface (sq ft / m2)896 / 83.24
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)896 / 83.24
Evaporative Heating Surface/Cylinder Volume192.51
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2432
Same as above plus superheater percentage2432
Same as above but substitute firebox area for grate area13,920
Power L13432
Power MT360.30

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