Inspetoria Federal de Obras Contra as Secas 2-8-2 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class 301 (Locobase 21130)

Data from Alco class 2-8-2 -82 Order C-694 builder's card supplied in February 2023 by Teemu Koivumaki. Works number was 63340-633342 in July 1922..

More than a year after IFCOS (a government authority tasked with relieving drought problems in Brazil's Northeast--see Locobase 21129) ordered eight Ten-wheelers, brokers Norton Griffith ordered this Mikado trio. Compared to the earlier engines, these were considerably smaller in the boiler, but larger in firebox and grate area. Their tenders held up to three cords of wood).

Teemu Koivumaki's 14 February 2023 email reported the 2-8-2s only spent a year on IFCOS before being transferred to the Rede de Viacao Cearense in 1924.

Principal Dimensions by Steve Llanso of Sweat House Media

Class301
Locobase ID21130
RailroadInspetoria Federal de Obras Contra as Secas (IFOCS)
CountryBrazil
Whyte2-8-2
Number in Class3
Road Numbers301-303
GaugeMetre
Number Built3
BuilderAlco-Cooke
Year1922
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)10.25 / 3.12
Engine Wheelbase (ft / m)23 / 7.01
Ratio of driving wheelbase to overall engine wheelbase 0.45
Overall Wheelbase (engine & tender) (ft / m)45.94 / 14
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)63,000 / 28,576
Engine Weight (lbs / kg)82,000 / 37,195
Tender Loaded Weight (lbs / kg)64,500 / 29,257
Total Engine and Tender Weight (lbs / kg)146,500 / 66,452
Tender Water Capacity (gals / ML)2500 / 9.47
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)26 / 13
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)15" x 20" / 381x508
Tractive Effort (lbs / kg)16,541 / 7502.88
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.81
Heating Ability
Tubes (number - dia) (in / mm)132 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11 / 3.35
Firebox Area (sq ft / m2)90 / 8.36
Grate Area (sq ft / m2)19.80 / 1.84
Evaporative Heating Surface (sq ft / m2)844 / 78.41
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)844 / 78.41
Evaporative Heating Surface/Cylinder Volume206.33
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3168
Same as above plus superheater percentage3168
Same as above but substitute firebox area for grate area14,400
Power L13121
Power MT436.86

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