Danske Statsbaner 2-8-0 Locomotives in Denmark
Class Details by Steve Llanso of Sweat House Media
Class H (I) (Locobase 4028)
Data from WilliamBay, Danmarks Damplokomotiver (1977). Works numbers were Borsig 11599-11600 in 1923 (road numbers 799-800) and 57-66 in 1926 (road numbers 789-798).
Class H (II) (Locobase 2473)
Some data from
[
]. Works numbers were 305-310 in 1941.
Described by H. le Fleming (in Ransome-Wallis, 1959) as "fine examples of the medium European freight engine." Tonnage rating was 900 tons on a 1% grade. Driver spacing was uneven, showing a big gap between the first and second and an even larger gap between the third and fourth. This long-wheelbase layout probably contributed to its reputation as being "remarkably free from slipping." Their ability to handle tight curves came from the use of a Krauss-Helmholz truck that combines the first driving axle with the pony truck.
Every engine in the class operated on the DSB until the end of steam in 1967.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | H (I) | H (II) |
| Locobase ID | 4028 | 2473 |
| Railroad | Danske Statsbaner (DSB) | Danske Statsbaner (DSB) |
| Country | Denmark | Denmark |
| Whyte | 2-8-0 | 2-8-0 |
| Number in Class | 12 | 6 |
| Road Numbers | 789-800 | 783-788 |
| Gauge | Std | Std |
| Number Built | 12 | 6 |
| Builder | several | Frichs |
| Year | 1923 | 1941 |
| Valve Gear | Southern | |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 20.67 / 6.30 | 20.67 / 6.30 |
| Engine Wheelbase (ft / m) | 30.02 / 9.15 | 30.02 / 9.15 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.69 | 0.69 |
| Overall Wheelbase (engine & tender) (ft / m) | 54.46 / 16.60 | 54.46 / 16.60 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 37,479 / 17,000 | |
| Weight on Drivers (lbs / kg) | 159,835 / 72,500 | 149,914 / 68,000 |
| Engine Weight (lbs / kg) | 179,236 / 81,300 | 179,236 / 81,300 |
| Tender Loaded Weight (lbs / kg) | 106,704 / 48,400 | 111,995 / 50,800 |
| Total Engine and Tender Weight (lbs / kg) | 285,940 / 129,700 | 291,231 / 132,100 |
| Tender Water Capacity (gals / ML) | 5544 / 21 | 6151 / 23.30 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.70 / 6 | 5.50 / 5 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 67 / 33.50 | 62 / 31 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 55.30 / 1404 | 55.30 / 1404 |
| Boiler Pressure (psi / kPa) | 174 / 1200 | 174 / 1200 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18.5" x 26.38" / 470x670 | 18.5" x 26.38" / 470x670 (3) |
| Tractive Effort (lbs / kg) | 24,147 / 10952.91 | 36,220 / 16429.14 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 6.62 | 4.14 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | ||
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 15.75 / 4.80 | 15.75 / 4.80 |
| Firebox Area (sq ft / m2) | 182.92 / 17 | 182.92 / 17 |
| Grate Area (sq ft / m2) | 28.19 / 2.62 | 28.19 / 2.62 |
| Evaporative Heating Surface (sq ft / m2) | 1732 / 161 | 1732 / 161 |
| Superheating Surface (sq ft / m2) | 592 / 55.02 | 592 / 55 |
| Combined Heating Surface (sq ft / m2) | 2324 / 216.02 | 2324 / 216 |
| Evaporative Heating Surface/Cylinder Volume | 211.03 | 140.69 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 4905 | 4905 |
| Same as above plus superheater percentage | 6131 | 6131 |
| Same as above but substitute firebox area for grate area | 39,785 | 39,785 |
| Power L1 | 15,583 | 10,388 |
| Power MT | 859.75 | 611.06 |