Central Pernambuco 2-6-0 Locomotives in Brazil

Class Details by Steve Llanso of Sweat House Media

Class 21 (Locobase 7387)

Data from Titre Exposition universelle internationale de 1878 a Paris. Rapports du jury internationale..Volume Groupe VI - Classe 64. Rapport sur le materiel des chemins de fer. p. 50 (cnum.cnam.fr/CGI/fpage.cgi?8XAE277-11.1/54/100/312/0/0 (accessed 1 September 2005) table and page 91. (Thanks to Teemu Koivumaki whose 2023 email included a comprehensive spreadsheet of Brazilian steam locomotive builders, works numbers, and owners.) Works numbers wer 2151-2154 in 1877 and 2155, 1878 2194-2195 in 1878 and 2330-2333.in 1880.

Beginning in 1877, Fives-Lille delivered a narrow-gauge Mogul tank engine design that featured a Belpaire firebox to the Tramway de Nazare The fifth in the class first appeared in the 1878 Paris Exhbition. The last two finished the class as they joined the others on the the tramway's successor Central Pernambuco.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID7387
RailroadCentral Pernambuco
Number in Class11
Road Numbers21-31
Number Built11
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)15.58 / 4.75
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)15.58 / 4.75
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)37,038 / 16,800
Engine Weight (lbs / kg)44,092 / 20,000
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)44,092 / 20,000
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)21 / 10.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)39.40 / 1000
Boiler Pressure (psi / kPa)123.30 / 8.50
High Pressure Cylinders (dia x stroke) (in / mm)12.6" x 19.69" / 320x500
Tractive Effort (lbs / kg)8315 / 3771.63
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.45
Heating Ability
Tubes (number - dia) (in / mm)118 - 1.772" / 45
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.84 / 3
Firebox Area (sq ft / m2)38.95 / 3.62
Grate Area (sq ft / m2) 9.15 / 0.85
Evaporative Heating Surface (sq ft / m2)577 / 53.67
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)577 / 53.67
Evaporative Heating Surface/Cylinder Volume203.05
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1128
Same as above plus superheater percentage1128
Same as above but substitute firebox area for grate area4803
Power L12199
Power MT392.67

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