Data from:
Svein Sando's Railway Site [] (9 June 2004)--(Later link: The Semaphore, accessed for link update 10 July 2022.)-- and the Jernbane (Iron Road) site [
] (June 2004).
Built originally for the NHJ (the Norwegian Trunk Line) which was opened between Oslo (then Christiana) and Eidsvold on 1 Sept 1854. When the NSB took over the NHJ in 1926, this cross-compound was brought in as Type 41. The original 3-axle tender was replaced by a 2-axle tender of greater capacity. Seems a little late in the day to be buying 2-4-0s, but the duo filled a need because the last wasn't retired until 7 July 1953.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | Class 41 |
Locobase ID | 6180 |
Railroad | NHJ / NSB |
Country | Norway |
Whyte | 2-4-0 |
Number in Class | 2 |
Road Numbers | 93-94 |
Gauge | Std |
Number Built | 2 |
Builder | SLM |
Year | 1901 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | |
Engine Wheelbase (ft / m) | / 10.86 |
Ratio of driving wheelbase to overall engine wheelbase | |
Overall Wheelbase (engine & tender) (ft / m) | 35.63 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 58,643 / 26,600 |
Engine Weight (lbs / kg) | 78,925 / 35,800 |
Tender Loaded Weight (lbs / kg) | 54,234 / 24,600 |
Total Engine and Tender Weight (lbs / kg) | 133,159 / 60,400 |
Tender Water Capacity (gals / ML) | 2640 / 10 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.30 / 3 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 49 / 24.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 57 / 1448 |
Boiler Pressure (psi / kPa) | 174 / 1200 |
High Pressure Cylinders (dia x stroke) (in / mm) | 15.75" x 24.41" / 400x620 (1) |
Low Pressure Cylinders (dia x stroke) (in / mm) | 22.83" x 24.41" / 580x620 (1) |
Tractive Effort (lbs / kg) | 10,645 / 4828.50 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.51 |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | |
Grate Area (sq ft / m2) | 16.46 / 1.53 |
Evaporative Heating Surface (sq ft / m2) | 986 / 91.60 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 986 / 91.60 |
Evaporative Heating Surface/Cylinder Volume | 358.26 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 2864 |
Same as above plus superheater percentage | 2864 |
Same as above but substitute firebox area for grate area | |
Power L1 | |
Power MT |