Central do Piaui 4-6-0 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class 10 (Locobase 15173)

Data from DeGolyer, Volume 66, pp. 338+. Works number was 56135 in January 1923.

This wood-burning Ten-wheeler accompanied the three Consolidations ordered on the same day (Locobase 15174). All four used the same boiler and grate and engine weight differed by only 4,000 lb (1,814 kg). Both types exhausted their steam through large Rushton Improved spark-arresting cabbage stacks. The 10's tender held 2.9 cords (9 1/2 cu m) of wood.

Principal Dimensions by Steve Llanso of Middle Run Media
Class10
Locobase ID15173
RailroadCentral do Piaui
CountryBrazil
Whyte4-6-0
Number in Class1
Road Numbers10
GaugeMetre
Number Built1
BuilderBaldwin
Year1923
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)10 / 2.13
Engine Wheelbase (ft / m)19.23 / 3.66
Ratio of driving wheelbase to overall engine wheelbase 0.52
Overall Wheelbase (engine & tender) (ft / m)45.21 / 9.92
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)65,000 / 29,484
Engine Weight (lbs / kg)85,000 / 38,555
Tender Loaded Weight (lbs / kg)59,000 / 26,762
Total Engine and Tender Weight (lbs / kg)144,000 / 65,317
Tender Water Capacity (gals / ML)2900 / 10.98
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)36 / 18
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) 4.20
Heating Ability
Tubes (number - dia) (in / mm)145 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.50 / 3.20
Firebox Area (sq ft / m2)108 / 10.03
Grate Area (sq ft / m2)17.90 / 1.66
Evaporative Heating Surface (sq ft / m2)899 / 83.52
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)899 / 83.52
Evaporative Heating Surface/Cylinder Volume193.16
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2864
Same as above plus superheater percentage2864
Same as above but substitute firebox area for grate area17,280
Power L13710
Power MT377.50

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