DIOC / NSB 4-6-0 Locomotives in Norway
Class Details by Steve Llanso of Sweat House Media
Class Class 55 (Locobase 6199)
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). Works numbers were 1032-1033.
Following the first six Dunderland Iron Ore Company locomotives, this pair arrived in 1905. After operating for decades for both the DIOC and its successor the NSB, the last one retired on 8 May 1951
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Class 55 |
| Locobase ID | 6199 |
| Railroad | DIOC / NSB |
| Country | Norway |
| Whyte | 4-6-0T |
| Number in Class | 2 |
| Road Numbers | A5-A6 / 494-495 |
| Gauge | Std |
| Number Built | 2 |
| Builder | Andrew Barclay |
| Year | 1905 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | 20.18 / 6.15 |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | 20.18 / 6.15 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 100,531 / 45,600 |
| Engine Weight (lbs / kg) | 132,277 / 50,200 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 132,277 / 50,200 |
| Tender Water Capacity (gals / ML) | 1795 / 6.80 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.30 / 3 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 56 / 28 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 50 / 1270 |
| Boiler Pressure (psi / kPa) | 134.90 / 930 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 26" / 457x660 |
| Tractive Effort (lbs / kg) | 19,319 / 8762.96 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.20 |
| 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) | 16.14 / 1.50 |
| Evaporative Heating Surface (sq ft / m2) | 1072 / 99.60 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1072 / 99.60 |
| Evaporative Heating Surface/Cylinder Volume | 139.99 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2177 |
| Same as above plus superheater percentage | 2177 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |