JFJ/DSB/SFJ/KB 0-4-0 Locomotives in Denmark
Class Details by Steve Llanso of Sweat House Media
Class N (I) (Locobase 4001)
Data from WilliamBay, Danmarks Damplokomotiver (1977). Class data from [
].
Produced as a batch, the class histories divided evenly between those that were withdrawn and scrapped by the DSB (N 97-N 98, N 101) in the decade after World War One and those that were sold to West Jutland (Vestjyllands Mergelforsyning) as their Numbers 1-3 (N 102, N 100, and N 99, respectively).
Of the VMFS engines, Number 1 was scrapped 1934 and Number 3 was sold to Dansk Kedelindustri (Danish Boiler) in 1940 and withdrawn a year later, VMFS survived the longest, being sold to Klsbygaard mergelleje in 1939 and continuing in their service until 1953.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | N (I) |
| Locobase ID | 4001 |
| Railroad | JFJ/DSB/SFJ/KB |
| Country | Denmark |
| Whyte | 0-4-0T |
| Number in Class | 6 |
| Road Numbers | N 97-N 102 |
| Gauge | Std |
| Number Built | 6 |
| Builder | Maffei |
| Year | 1877 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.01 / 2.14 |
| Engine Wheelbase (ft / m) | 7.01 / 2.14 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 7.01 / 2.14 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 35,053 / 15,900 |
| Engine Weight (lbs / kg) | 35,053 / 15,900 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 35,053 / 15,900 |
| Tender Water Capacity (gals / ML) | 370 / 1.40 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.40 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 29 / 14.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 137.80 / 950 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12.01" x 20" / 305x508 |
| Tractive Effort (lbs / kg) | 7040 / 3193.29 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.98 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 70 - 1.89" / 48 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 7.94 / 2.42 |
| Firebox Area (sq ft / m2) | 32.82 / 3.05 |
| Grate Area (sq ft / m2) | 7.10 / 0.66 |
| Evaporative Heating Surface (sq ft / m2) | 277 / 25.71 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 277 / 25.71 |
| Evaporative Heating Surface/Cylinder Volume | 105.63 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 978 |
| Same as above plus superheater percentage | 978 |
| Same as above but substitute firebox area for grate area | 4523 |
| Power L1 | 1854 |
| Power MT | 233.21 |