Danske Statsbaner 0-4-2 Locomotives in Denmark
Class Details by Steve Llanso of Sweat House Media
Class J - superheated (Locobase 4008)
Data from William Bay, Danmarks Damplokomotiver (1977). Upgrade information from [
].
Gregersen says that the entire class received a full makeover in the 1920s. This included a new boiler pressed to 12 Atm, superheater, larger smokebox with new door, and a new regulator in the dome. The tender's water capacity increased as well. The schedule of updates was:
Year Road numbers
1921 3, 5-8
1924 1-2, 9
1925 11-12
1926 4, 10, 15-16, 18
1927 13-14, 17, 20
1929 19
These were handy locomotives for light passenger duty and most carried on after World War II despite the significant inroads being made by railbuses. Five -- 15, 6, 10, 18, and 4 ---were retired in the 1930s, 6 being withdrawn in 1937 after hitting a truck. The next to leave was #9 in 1950, followed by three in 1951 (11, 16, 20), four in 1952 (2, 3, 5, 7-8), one in 1953 (12), and the last four in 1954 (13, 14, 17, 19).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | J - superheated |
| Locobase ID | 4008 |
| Railroad | Danske Statsbaner (DSB) |
| Country | Denmark |
| Whyte | 0-4-2 |
| Number in Class | 20 |
| Road Numbers | 1-20 |
| Gauge | Std |
| Number Built | |
| Builder | shops |
| Year | 1921 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 48,832 / 22,150 |
| Engine Weight (lbs / kg) | 58,240 / 26,417 |
| Tender Loaded Weight (lbs / kg) | 48,832 / 22,150 |
| Total Engine and Tender Weight (lbs / kg) | 107,072 / 48,567 |
| Tender Water Capacity (gals / ML) | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2.20 / 2 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 41 / 20.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 54.50 / 1384 |
| Boiler Pressure (psi / kPa) | 174 / 1200 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 20" / 381x508 |
| Tractive Effort (lbs / kg) | 12,212 / 5539.28 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.00 |
| 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) | 10.76 / 1 |
| Evaporative Heating Surface (sq ft / m2) | 563 / 52.32 |
| Superheating Surface (sq ft / m2) | 269 / 25 |
| Combined Heating Surface (sq ft / m2) | 832 / 77.32 |
| Evaporative Heating Surface/Cylinder Volume | 137.63 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1872 |
| Same as above plus superheater percentage | 2471 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |