Data from WilliamBay, Danmarks Damplokomotiver (1977). Class information from [].
Jernbanen.dk notes that this set of 11 of locomotives was part of a larger order. As Stephenson began work on the order, the JFJ sent 2 mechanical apprentices in Spring 1868 to get a better idea of how such locomotives were assembled. A photo of B 26 shows the porthole windows in the weatherboard and the rounded cab roof that together with the slender boiler, heavy castings on the smokebox, and the tall dome and stack suggests a candidate for the Thomas series.
All of the boilers were replaced in 1888-1893. B 21, B 22 were retired in 1910 and 1907, respectively. Most of the others were retired in the 1920s; B 47 went in September 1931; B 46 was withdrawn in September 1932. B 45 was retired in April 1928 and donated to the Railway Museum.
Data from William Bay, Danmarks Damplokomotiver (1977). Class information from [].
These were tender-trailing versions of the F-class tanks that were delivered by Hawthorn in the same year (Locobase 3994). Probably because they were not tank engines, this quartet was retired four decades sooner than the Fs. C 66-C 67 were withdrawn in 1896 and C 65, C 68 went in 1897.
Data from William Bay, Danmarks Damplokomotiver (1977). Class information from [].
Opening southern Jutland's Lunderskov-Esbjerg-Varde line described in Locobase 3994 prompted the purchase of F-class 0-6-0T tank engines, C-class 2-4-0 tender engines, and these 2-4-0 tanks. They were small and light and obviously very handy to have around.
The first of the class -- Kj 74 -- was scrapped only in 1924 (50 years after delivery) while the others all remained in service for another few years. The last to be scrapped was the class leader Kj 69 in 1934.
Principal Dimensions by Steve Llanso of Middle Run Media | |||
---|---|---|---|
Class | B | C | Kj |
Locobase ID | 3987 | 3995 | 3996 |
Railroad | Jydsk-Fyenske Jernbaner (JFJ) | Jydsk-Fyenske Jernbaner (JFJ) | Jydsk-Fyenske Jernbaner (JFJ) |
Country | Denmark | Denmark | Denmark |
Whyte | 2-4-0 | 2-4-0 | 2-4-0T |
Number in Class | 11 | 4 | 8 |
Road Numbers | B 21-B 26, B 45-49 | C 65-C 68 | K 69-K 76 / Kj 69-Kj 76 |
Gauge | Std | Std | Std |
Number Built | 11 | 4 | 8 |
Builder | Robert Stephenson & Co | R & W Hawthorn | R & W Hawthorn |
Year | 1868 | 1874 | 1874 |
Valve Gear | Stephenson | Stephenson | Stephenson |
Locomotive Length and Weight | |||
Driver Wheelbase (ft / m) | 6.50 / 1.98 | ||
Engine Wheelbase (ft / m) | 12.75 / 3.88 | ||
Ratio of driving wheelbase to overall engine wheelbase | 0.51 | ||
Overall Wheelbase (engine & tender) (ft / m) | 28.32 / 8.63 | ||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |||
Weight on Drivers (lbs / kg) | 34,721 / 15,749 | 34,048 / 15,444 | 24,641 / 11,177 |
Engine Weight (lbs / kg) | 57,119 / 25,909 | 57,344 / 26,011 | 36,736 / 16,663 |
Tender Loaded Weight (lbs / kg) | 34,721 / 15,749 | 34,048 / 15,444 | 24,641 / 11,177 |
Total Engine and Tender Weight (lbs / kg) | 91,840 / 41,658 | 91,392 / 41,455 | 61,377 / 27,840 |
Tender Water Capacity (gals / ML) | 1241 / 4.70 | 1426 / 5.40 | 502 / 1.90 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.40 / 3 | 2.20 / 2 | 2.20 / 2 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 29 / 14.50 | 28 / 14 | 21 / 10.50 |
Geometry Relating to Tractive Effort | |||
Driver Diameter (in / mm) | 60 / 1524 | 60 / 1524 | 48 / 1219 |
Boiler Pressure (psi / kPa) | 123.30 / 850 | 123.30 / 850 | 123.30 / 850 |
High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 22.05" / 381x560 | 15" x 22.01" / 381x559 | 10.98" x 20" / 279x508 |
Tractive Effort (lbs / kg) | 8666 / 3930.84 | 8650 / 3923.58 | 5265 / 2388.17 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.01 | 3.94 | 4.68 |
Heating Ability | |||
Tubes (number - dia) (in / mm) | 154 - 1.89" / 48 | ||
Flues (number - dia) (in / mm) | |||
Flue/Tube length (ft / m) | 10.30 / 3.14 | ||
Firebox Area (sq ft / m2) | 71.45 / 6.64 | ||
Grate Area (sq ft / m2) | 13.99 / 1.30 | 10.76 / 1 | 7.53 / 0.70 |
Evaporative Heating Surface (sq ft / m2) | 732 / 68.03 | 780 / 72.49 | 433 / 40.24 |
Superheating Surface (sq ft / m2) | |||
Combined Heating Surface (sq ft / m2) | 732 / 68.03 | 780 / 72.49 | 433 / 40.24 |
Evaporative Heating Surface/Cylinder Volume | 162.31 | 173.27 | 197.55 |
Computations Relating to Power Output (More Information) | |||
Robert LeMassena's Power Computation | 1725 | 1327 | 928 |
Same as above plus superheater percentage | 1725 | 1327 | 928 |
Same as above but substitute firebox area for grate area | 8810 | ||
Power L1 | 3115 | ||
Power MT | 403.39 |