Data from WilliamBay, Danmarks Damplokomotiver (1977). Photos from the Danish Damplokomotiver hos DSB ([]) show a stubby Crampton-type locomotive with outside Allan valve gear.
Data from William Bay, Danmarks Damplokomotiver (1977). Works numbers were 553-554 in 1854.
According to the Danish Damplokomotiver hos DSB ([]), these two engines (Skirner and Vidar) were part of the Thor class of a year earlier. Bay divides them into two. Bay's Thor class would be made up of Thor, Njord, Baldur, and Fenris. Like all single-axle Cramptons, these engines has the single driver behind the firebox to keep the boiler pitched low.
Drivers in this pair stood a full 12" (305 mm) taller.
Data from WilliamBay, Danmarks Damplokomotiver (1977). Works numbers were 555-556 in 1854 and 557-558 in 1855.
According to the Danish Damplokomotiver hos DSB ([]), the Thors and the later Skirners could be seen as one class of Crampton-type locomotive.
Bay divides them into two. Bay's Thor class would be made up of Thor, Njord, Baldur, and Fenris. Like all single-axle Cramptons, these engines has the single driver behind the firebox to keep the boiler pitched low.
Principal Dimensions by Steve Llanso of Middle Run Media | |||
---|---|---|---|
Class | HC Oersted | Skirner | Thor |
Locobase ID | 3964 | 3962 | 3961 |
Railroad | |||
Country | Denmark | Denmark | Denmark |
Whyte | 4-2-0 | 4-2-0 | 4-2-0 |
Number in Class | 1 | 2 | 4 |
Road Numbers | 10-11 | 6-9 | |
Gauge | Std | Std | Std |
Number Built | 1 | 2 | 4 |
Builder | Esslingen | Borsig | Borsig |
Year | 1858 | 1855 | 1854 |
Valve Gear | Allan | ||
Locomotive Length and Weight | |||
Driver Wheelbase (ft / m) | |||
Engine Wheelbase (ft / m) | 13.65 / 4.16 | ||
Ratio of driving wheelbase to overall engine wheelbase | |||
Overall Wheelbase (engine & tender) (ft / m) | 32.12 / 9.79 | ||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |||
Weight on Drivers (lbs / kg) | 21,728 / 9856 | 30,688 / 13,920 | 29,568 / 13,412 |
Engine Weight (lbs / kg) | 50,624 / 22,963 | 67,200 / 30,481 | 65,408 / 29,669 |
Tender Loaded Weight (lbs / kg) | 21,728 / 9856 | 30,688 / 13,920 | 29,568 / 13,412 |
Total Engine and Tender Weight (lbs / kg) | 72,352 / 32,819 | 97,888 / 44,401 | 94,976 / 43,081 |
Tender Water Capacity (gals / ML) | |||
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.40 / 3 | 3.40 / 3 | 3.40 / 3 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 36 / 18 | 51 / 25.50 | 49 / 24.50 |
Geometry Relating to Tractive Effort | |||
Driver Diameter (in / mm) | 72 / 1829 | 72 / 1829 | 60 / 1524 |
Boiler Pressure (psi / kPa) | 101.50 / 700 | 101.50 / 700 | 101.50 / 700 |
High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 24.09" / 381x612 | 15" x 22" / 381x560 | 15" x 22" / 381x560 |
Tractive Effort (lbs / kg) | 6495 / 2946.09 | 5931 / 2690.26 | 7118 / 3228.67 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.35 | 5.17 | 4.15 |
Heating Ability | |||
Tubes (number - dia) (in / mm) | |||
Flues (number - dia) (in / mm) | |||
Flue/Tube length (ft / m) | 10.67 / 3.25 | ||
Firebox Area (sq ft / m2) | |||
Grate Area (sq ft / m2) | 10.76 / 1 | 11.84 / 1.10 | 11.84 / 1.10 |
Evaporative Heating Surface (sq ft / m2) | 1011 / 93.96 | 890 / 82.71 | 890 / 82.71 |
Superheating Surface (sq ft / m2) | |||
Combined Heating Surface (sq ft / m2) | 1011 / 93.96 | 890 / 82.71 | 890 / 82.71 |
Evaporative Heating Surface/Cylinder Volume | 205.19 | 197.79 | 197.79 |
Computations Relating to Power Output (More Information) | |||
Robert LeMassena's Power Computation | 1092 | 1202 | 1202 |
Same as above plus superheater percentage | 1092 | 1202 | 1202 |
Same as above but substitute firebox area for grate area | |||
Power L1 | |||
Power MT |