Magnet Tramway 0-4-0 Locomotives

Class 2 (Locobase 8414)

Data from RF Waller (Assoc M. Inst., CE), "The Magnet Tramway", in Tasmania:Report of the Secretary of Mines for 1901-1902 (Hobart, Tasmania, 1902), esp. pp. cxxiv-cxxviii).

See Locobase 8413 for an extended comment of this railway's two Mallets. Waller described this little tank as "...a good and efficient machine, and [it] does excellent work for its size. At the worst of times it pulls comfortably a gross load of 15 tons up the six-mile stretch of heavy [4%] gradient." Increasing the burden by even 3 tons overmatched the locomotive's boiler with the result, he observed, that it "...cannot make steam fast enough to keep this up for a long distance."

Specifications by Steve Llanso
Class2
Locobase ID8414
RailroadMagnet Tramway
Whyte0-4-0T
Road Numbers2
Gauge2'
BuilderOrenstein & Koppel
Year1900
Valve GearO&K patent
Locomotive Length and Weight
Driver Wheelbase 3.28'
Engine Wheelbase 3.28'
Ratio of driving wheelbase to overall engine wheebase1
Overall Wheelbase (engine & tender) 3.28'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers15120 lbs
Engine Weight15120 lbs
Tender Light Weight
Total Engine and Tender Weight15120 lbs
Tender Water Capacity130 gals
Tender Fuel Capacity (oil/coal)
Minimum weight per yard of rail on which locomotive could run13 lb rail
Geometry Relating to Tractive Effort
Driver Diameter22.80"
Boiler Pressure170 psi
Cylinders (dia x stroke)6.5" x 12"
Tractive Effort3213 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.71
Heating Ability
Firebox Area
Grate Area 3.80 sq. ft
Evaporative Heating Surface155 sq. ft
Superheating Surface
Combined Heating Surface155 sq. ft
Evaporative Heating Surface/Cylinder Volume336.32
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation646
Same as above plus superheater percentage646
Same as above but substitute firebox area for grate area0
Power L10
Power MT0

Credits

Introduction and specifications provided by Steve Llanso of Sweat House Media.