Tasmanian Government 4-4-0 Locomotives in Australia


Class Details by Steve Llanso of Sweat House Media

Class A (Locobase 9555)

Data from Howell, Comparative Statistics of the Australasian Railways, Journal of the Royal Statistical Society, March 1899, pp. 96-97. Works numbers were 3390-3393 in 189-1892; 3505-3506 in 1892, and 4309-4310 in 1901.


Class B (Locobase 9556)

Data from Howell, Comparative Statistics of the Australasian Railways, Journal of the Royal Statistical Society, March 1899, pp. 96-97. Delivered in four separate shipments over 6 years. Works numbers were 2510-2511 in 1884; 2615-2616, 2692-2694 in 1886; 2830 in 1887; and 3129-3131 in 1890.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassAB
Locobase ID9555 9556
RailroadTasmanian GovernmentTasmanian Government
CountryAustraliaAustralia
Whyte4-4-04-4-0
Number in Class815
Road Numbers
Gauge3'6"3'6"
Number Built815
BuilderBeyer, PeacockBeyer, Peacock
Year18921885
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)18.58 / 5.6616.75 / 5.11
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)36.58 / 11.1533 / 10.06
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)44,240 / 20,06739,760 / 18,035
Engine Weight (lbs / kg)66,640 / 30,22758,800 / 26,671
Tender Loaded Weight (lbs / kg)45,920 / 20,82945,920 / 20,829
Total Engine and Tender Weight (lbs / kg)112,560 / 51,056104,720 / 47,500
Tender Water Capacity (gals / ML)2040 / 7.731920 / 7.27
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 3.30 / 3 2.80 / 2.50
Minimum weight of rail (calculated) (lb/yd / kg/m)37 / 18.5033 / 16.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)55 / 139748 / 1219
Boiler Pressure (psi / kPa)150 / 10.30140 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)15.5" x 22" / 394x55914.5" x 20" / 368x508
Tractive Effort (lbs / kg)12,253 / 5557.8710,425 / 4728.71
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.61 3.81
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)80 / 7.4370 / 6.50
Grate Area (sq ft / m2)15.75 / 1.4614.33 / 1.33
Evaporative Heating Surface (sq ft / m2)861 / 79.99774 / 71.91
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)861 / 79.99774 / 71.91
Evaporative Heating Surface/Cylinder Volume179.20202.49
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation23632006
Same as above plus superheater percentage23632006
Same as above but substitute firebox area for grate area12,0009800
Power L136093293
Power MT359.70365.18

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