Data from Howell, Comparative Statistics of the Australasian Railways, Journal of the Royal Statistical Society, March 1899, pp. 96-97.
As the Perth area's suburbs blossomed following the Gold Rush in Western Australia, these passenger tank engines served not just Perth, but also the gold center of Kalgoorlie. Several of the N class began service as O-class heavy freight engines; see Locobase 9565.
They proved to be a durable class and most operated into the 1950s with the last retiring in 1961.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | N |
Locobase ID | 9564 |
Railroad | Western Australia |
Country | Australia |
Whyte | 4-4-4T |
Number in Class | 42 |
Road Numbers | |
Gauge | 3'6" |
Number Built | 42 |
Builder | Neilson & Co |
Year | 1896 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | |
Engine Wheelbase (ft / m) | |
Ratio of driving wheelbase to overall engine wheelbase | |
Overall Wheelbase (engine & tender) (ft / m) | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | |
Engine Weight (lbs / kg) | 99,008 / 44,909 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | 99,008 / 44,909 |
Tender Water Capacity (gals / ML) | 1920 / 7.27 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2.80 / 3 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 48 / 1219 |
Boiler Pressure (psi / kPa) | 160 / 1100 |
High Pressure Cylinders (dia x stroke) (in / mm) | 15.5" x 21" / 394x533 |
Tractive Effort (lbs / kg) | 14,295 / 6484.11 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | 93 / 8.64 |
Grate Area (sq ft / m2) | 15.75 / 1.46 |
Evaporative Heating Surface (sq ft / m2) | 867 / 80.58 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 867 / 80.58 |
Evaporative Heating Surface/Cylinder Volume | 189.04 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 2520 |
Same as above plus superheater percentage | 2520 |
Same as above but substitute firebox area for grate area | 14,880 |
Power L1 | 3718 |
Power MT |