NHJ / NSB 0-4-0 Locomotives in Norway
Class Details by Steve Llanso of Sweat House Media
Class D / Class 7 (Locobase 1727)
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 [] (originally June 2004, last accessed 30 January 2010).
Sando's table shows two versions that my non-existent competence in Norse prevents me from properly translating. They appear to differ primarily in boiler pressure with 7a opr. pressed to 120 psi (8.4 bar) and 7a omb. coming in at 140 psi (ca. 10 bar).
Produced by Manning Wardle (6) over the period of 1875-1892 and Nyland (2) in 1896-1898 for the Norsk-Hoved Jernbane. The NHJ was absorbed by the NSB in 1926.
The very last of these little tanks left service on 20 August 1964.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | D / Class 7 |
| Locobase ID | 1727 |
| Railroad | NHJ / NSB |
| Country | Norway |
| Whyte | 0-4-0T |
| Number in Class | 8 |
| Road Numbers | 11,24-25, 34, 40, 62, 84- |
| Gauge | Std |
| Number Built | 8 |
| Builder | several |
| Year | 1875 |
| Valve Gear | |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 6 / 1.83 |
| Engine Wheelbase (ft / m) | 6 / 1.83 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 36,817 / 16,700 |
| Engine Weight (lbs / kg) | 36,817 / 16,700 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 528 / 2 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.20 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 31 / 15.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 38 / 965 |
| Boiler Pressure (psi / kPa) | 140 / 970 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 10" x 16" / 254x406 |
| Tractive Effort (lbs / kg) | 5011 / 2272.95 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 7.35 |
| 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) | 5.40 / 0.50 |
| Evaporative Heating Surface (sq ft / m2) | 358 / 33.27 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 358 / 33.27 |
| Evaporative Heating Surface/Cylinder Volume | 246.14 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 756 |
| Same as above plus superheater percentage | 756 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |