Novo Hamburgo a Taquara 0-6-0 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 20136)

Data from Lionel Wiener, "Locomotives of the Rio Grande do Sul", Locomotive Magazine, Volume 19 (13 January 1913), pp. 16-17. Works numbers were 4021, 4020, 4019 in 1903.

The Taquara was a 28-mile (45.1 km) extension of the PA&NH that opened in 1903. This trio of German-built tank engines (the first from that country to run on the Rio Grande system) were all the motive power the Taquara would buy. In 1905 all of the PA&NH was bought by the state of the Rio Grande do Sul and integrated into the Compagnie Auxiliaire's system.

The locomotives arrived with spark-arresting diamond stacks, outside Stephenson link motion, prominent "cow catcher" pilots, long side tanks, and large cabs. The LM reported that the class went through two significant changes. First, they were too heavy and too wide for other parts of the system, so they were converted to 0-6-0 tender locomotives trailing four-wheel tenders.

Apparently ride quality and tracking were still an issue because the RGdeS in1910 fitted a pony truck ahead of the drivers, creating a 2-6-0 with an engine wheelbase measuring 16 ft 8 3/16 in (5.08 m). That change and the careful distribution of four tons of extra weight on the frame. Result: "The locomotive rides easily and steams well after this recent transformation."

Principal Dimensions by Steve Llanso of Sweat House Media

Classunknown
Locobase ID20136
RailroadNovo Hamburgo a Taquara
CountryBrazil
Whyte0-6-0T
Number in Class3
Road Numbers181-183
GaugeMetre
Number Built3
BuilderHannover
Year1903
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)10.50 / 3.20
Engine Wheelbase (ft / m)10.50 / 3.20
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)10.50 / 3.20
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)59,999 / 27,215
Engine Weight (lbs / kg)59,999 / 27,215
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)59,999 / 27,215
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)33 / 16.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)43.30 / 1100
Boiler Pressure (psi / kPa)172.60 / 11.90
High Pressure Cylinders (dia x stroke) (in / mm)14.96" x 21.65" / 380x550
Tractive Effort (lbs / kg)16,417 / 7446.63
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.65
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)78.58 / 7.30
Grate Area (sq ft / m2)12.38 / 1.15
Evaporative Heating Surface (sq ft / m2)814 / 75.62
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)814 / 75.62
Evaporative Heating Surface/Cylinder Volume184.81
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2137
Same as above plus superheater percentage2137
Same as above but substitute firebox area for grate area13,563
Power L13413
Power MT376.22

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