Jydsk-Fyenske Jernbaner 4-4-0 Locomotives in Denmark

Class Details by Steve Llanso of Sweat House Media

Class A (Locobase 4004)

Data from William Bay, Danmarks Damplokomotiver (1977). Class information from []. See also A Gregersoen of Danske Damploko ([])

According to the Danish Damplokomotiver hos DSB ([]), these were built by Borsig and Hartmann. Borsig supplied six in 1882 (works 3850-3855), five in 1883 (works 3895-3899), and five in 188--(works 4017-4021). Hartmann picked up the class with four in 1884 (works 1381-1384), six in 1886 (works 1452-1457), and five in 1889 (works 1530-1534). They went into service on the Nyborg-Strib line or the Ostjyske L'ngdebane in East Jutland.

Photos show them to have been small 4-4-0s with outside Allan valve gear, tall steam dome over the first driver set, and tall tapered stack. Otto Busse is credited with their design. Gregersen says they drove easily and tracked well. Busse's preference for small boilers and grates presented good news and bad news. The engines were economical because they couldn't be loaded with very much coal at any given time, but their limited power meant they were unsuitable for services experiencing growth in traffic.

As can be imagined, their careers varied considerably. Ten were superheated (see Locobase 4005) , others were not. Most had their boiler pressure reset to 12 bar (174 psi) in the 1920s.

A 154 twice suffered mishaps, the second of which caused fatalities. In 1901, the engine ran through the turntable and platform at Frederica and ended up at Gothersgrade. On 26 July 1913, the A 154's train derailed just outside of Bramminge station and killed 15 passengers and injured 54 more. Jernbane.dk offers a full account of this accident, which Google will helpfully translate.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID4004
RailroadJydsk-Fyenske Jernbaner (JFJ)
Number in Class31
Road NumbersA 129-A 159
Number Built31
Valve GearAllan
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.01 / 2.44
Engine Wheelbase (ft / m)16.20 / 4.94
Ratio of driving wheelbase to overall engine wheelbase 0.49
Overall Wheelbase (engine & tender) (ft / m)37.72 / 11.50
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)44,800 / 20,321
Engine Weight (lbs / kg)73,024 / 33,123
Tender Loaded Weight (lbs / kg)44,800 / 20,000
Total Engine and Tender Weight (lbs / kg)117,824 / 53,123
Tender Water Capacity (gals / ML)1848 / 7
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 4.40 / 4
Minimum weight of rail (calculated) (lb/yd / kg/m)37 / 18.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)66.50 / 1690
Boiler Pressure (psi / kPa)145 / 10
High Pressure Cylinders (dia x stroke) (in / mm)15.98" x 22.05" / 406x560
Tractive Effort (lbs / kg)10,436 / 4733.70
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.29
Heating Ability
Tubes (number - dia) (in / mm)140 - 1.89" / 48
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11.55 / 3.52
Firebox Area (sq ft / m2)76.10 / 7.07
Grate Area (sq ft / m2)14.10 / 1.31
Evaporative Heating Surface (sq ft / m2)785 / 72.94
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)785 / 72.94
Evaporative Heating Surface/Cylinder Volume153.37
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2045
Same as above plus superheater percentage2045
Same as above but substitute firebox area for grate area11,035
Power L13659
Power MT360.12

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