Tasmanian Government 2-4-2 Locomotives in Australia


Class Details by Steve Llanso of Sweat House Media

Class D (Locobase 9558)

Data from Howell, Comparative Statistics of the Australasian Railways, Journal of the Royal Statistical Society, March 1899, pp. 96-97. These were delivered in pairs and a single over a long period. Works numbers were 3285-3286 in 1891, 3509-3510 in 1892, and 5028 in 1908.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassD
Locobase ID9558
RailroadTasmanian Government
CountryAustralia
Whyte2-4-2T
Number in Class5
Road Numbers
Gauge3'6"
Number Built5
BuilderBeyer, Peacock
Year1891
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)19.58 / 5.97
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)19.58 / 5.97
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)37,520 / 17,019
Engine Weight (lbs / kg)63,840 / 28,957
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)63,840 / 28,957
Tender Water Capacity (gals / ML)720 / 2.73
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 0.80 / 0.70
Minimum weight of rail (calculated) (lb/yd / kg/m)31 / 15.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)45 / 1143
Boiler Pressure (psi / kPa)140 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)12.5" x 20" / 318x508
Tractive Effort (lbs / kg)8264 / 3748.49
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.54
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)57 / 5.30
Grate Area (sq ft / m2)10.87 / 1.01
Evaporative Heating Surface (sq ft / m2)575 / 53.42
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)575 / 53.42
Evaporative Heating Surface/Cylinder Volume202.41
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1522
Same as above plus superheater percentage1522
Same as above but substitute firebox area for grate area7980
Power L13179
Power MT373.59

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