Data from Charles Lake, Locomotives of 1907 (London: Percival Marshall & Co, 1907), presented on [], last accessed 31 January 2009, "Heavy Tank Locomotive-Nevada Northern Railway", Railway Master Mechanic, (February 1907), p. 56; [], last accessed 31 January 2009.
The NN was projected and built by Mark Requa and opened in 1906.
According to Nevada Northern's site, this Mikado tank came new to the railroad and cost $15,371. It was the only one with this wheel arrangement o n the railroad and one of the few in the US. In all likelihood, the six axles were thought to allow higher weights on the 60-lb/yard (30-kg/metre) rail that served the NN throughout its operating history.
Obviously ill-suited to the NN's requirements, 5 was converted to a Consolidation tender engine in 1913 and renumbered 80. In the process, its cylinder size was increased by an inch as was its driver diameter. Its sizable tender held 7,500 US gallons(28,388 litres) of water and 12 tons (10.9 metric tons) of coal. In this configuration, 80 remained in service for almost 40 more years before being sold for scrap in May 1951.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 5 |
Locobase ID | 9925 |
Railroad | Nevada Northern |
Country | USA |
Whyte | 2-8-2T |
Number in Class | 1 |
Road Numbers | 5/80 |
Gauge | Std |
Number Built | 1 |
Builder | Alco-Brooks |
Year | 1906 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 15 / 4.57 |
Engine Wheelbase (ft / m) | 34 / 10.36 |
Ratio of driving wheelbase to overall engine wheelbase | 0.44 |
Overall Wheelbase (engine & tender) (ft / m) | 34 / 10.36 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 172,000 / 78,018 |
Engine Weight (lbs / kg) | 225,000 / 102,058 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | 225,000 |
Tender Water Capacity (gals / ML) | 2500 / 9.47 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5 / 5 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 72 / 36 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 48 / 1219 |
Boiler Pressure (psi / kPa) | 200 / 1380 |
High Pressure Cylinders (dia x stroke) (in / mm) | 19" x 26" / 483x660 |
Tractive Effort (lbs / kg) | 33,242 / 15078.34 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.17 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 304 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 15.67 / 4.78 |
Firebox Area (sq ft / m2) | 166 / 15.42 |
Grate Area (sq ft / m2) | 46 / 4.27 |
Evaporative Heating Surface (sq ft / m2) | 2644 / 245.63 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 2644 / 245.63 |
Evaporative Heating Surface/Cylinder Volume | 309.96 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 9200 |
Same as above plus superheater percentage | 9200 |
Same as above but substitute firebox area for grate area | 33,200 |
Power L1 | 6516 |
Power MT | 334.08 |