Data from WilliamBay, Danmarks Damplokomotiver (1977). Class information from []. Ten of the class were produced by Robert Stephenson & Company in 1868; the other two arrived the next year.
[] shows these to have been later "longboilers". At least the grate hung down entirely behind the last driver set, which limited their speed. All of them had their boilers replaced in 1885-1893
Nevertheless, they remained in service for years before being retired in the 1920s.
Data from WilliamBay, Danmarks Damplokomotiver (1977). Class information from [].
These were relatively long-lived freight tank engines originally procured to serve the Lunderskov-Esbjerg-Varde east-to-west line that opened in southern Jutland in 1874. A later extension reached north from Varde to Ringk'bing on the North Sea and Holstebro almost due north of Varde.
The Fs had the firebox nested between the last two axles, which probably made them steadier riders than contemporaneous "Long-boilers". Remarkably, the first of these to be withdrawn left service only in January 1935 (F 63). F 62 followed 2 months later. F 64 was retired in June 1936 and F 61 finished off the class in October 1939.
See the much-shorter-lived C-class tender-engine versions at Locobase 3995.
Data from WilliamBay, Danmarks Damplokomotiver (1977). Class information from []. Esslingen delivered the first 5 in 1875 and Hanomag added 4 in 1878.
These freight engines were rated at a maximum of 480 tons and had long careers. G 106-G 109 had 16" (406 mm) cylinders. Gregersen at Danske Damploko ([]) says that while hard on the track, the class was easily ran at 70 km/h (43 mph) and proved themselves "sturdy and reliable." (according to Google's translation).
All operated on the Aalborg-Vamdrup line until 1896, then the Langa-Struer line. They were shedded at Struer from 1897-1911, then moved to either the Thybane or Sallingbane. A boiler replacement program in the late 1890s resulted in a loss of weight (unusual for such efforts) and larger tenders.
Almost all were withdrawn in 1932. G 78 lasted 2 years longer and was collected by the Railway Museum; G108 also was retired in 1934. G 106 wasn't retired until 1936.
Data from William Bay, Danmarks Damplokomotiver (1977). Class information from []. Hartmann delivered 8 (works numbers 1312-1319) in 1884 and Maffei added 6 more in 1888 (works numbers 1474-1479).
This class of 6-coupled freight engines (and the G (III)s that followed in the 1890s) shared the same profile: a long boiler with firebox behind the last coupled axle, dome positioned over the middle axle, and thin, straight stack.
The speed demanded of Danish freight trains was sufficiently undemanding that most of the class would remain in service for well over 60 years. Four were even superheated in the late 1920s.
Principal Dimensions by Steve Llanso of Middle Run Media | ||||
---|---|---|---|---|
Class | E | F (I) | G (I) | G (II) |
Locobase ID | 3988 | 3994 | 3997 | 4006 |
Railroad | Jydsk-Fyenske Jernbaner (JFJ) | Jydsk-Fyenske Jernbaner (JFJ) | Jydsk-Fyenske Jernbaner (JFJ) | Jydsk-Fyenske Jernbaner (JFJ) |
Country | Denmark | Denmark | Denmark | Denmark |
Whyte | 0-6-0 | 0-6-0T | 0-6-0 | 0-6-0 |
Number in Class | 12 | 4 | 9 | 14 |
Road Numbers | E 27-E 36, E 43-E 44 | F 61-F 64 | G 77-G 81, G 106-G 109 | G 160-G 173 |
Gauge | Std | Std | Std | Std |
Number Built | 12 | 4 | 9 | 14 |
Builder | Robert Stephenson & Co | R & W Hawthorn | several | several |
Year | 1868 | 1873 | 1875 | 1884 |
Valve Gear | Stephenson | Stephenson | Stephenson | Stephenson |
Locomotive Length and Weight | ||||
Driver Wheelbase (ft / m) | 14.03 / 4.28 | 12.49 / 3.81 | 14.03 / 4.28 | 14.03 / 4.28 |
Engine Wheelbase (ft / m) | 14.03 / 4.28 | 12.49 / 3.81 | 14.03 / 4.28 | 14.03 / 4.28 |
Ratio of driving wheelbase to overall engine wheelbase | 1 | 1 | 1 | 1 |
Overall Wheelbase (engine & tender) (ft / m) | 31.25 / 9.52 | 12.49 / 3.81 | 31.83 / 9.70 | 32.10 / 9.79 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||||
Weight on Drivers (lbs / kg) | 62,049 / 28,145 | 67,461 / 30,600 | 61,729 / 28,000 | 69,216 / 31,396 |
Engine Weight (lbs / kg) | 62,049 / 28,145 | 67,461 / 30,600 | 61,729 / 28,000 | 69,216 / 31,396 |
Tender Loaded Weight (lbs / kg) | 62,049 / 28,145 | 41,006 / 18,600 | 53,352 / 24,200 | |
Total Engine and Tender Weight (lbs / kg) | 124,098 / 56,290 | 102,735 / 46,600 | 122,568 / 55,596 | |
Tender Water Capacity (gals / ML) | 1848 / 7 | 528 / 2 | 1558 / 5.90 | 2640 / 10 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.30 / 3 | 0.60 / 1 | 3.40 / 3 | 3.90 / 4 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 34 / 17 | 37 / 18.50 | 34 / 17 | 38 / 19 |
Geometry Relating to Tractive Effort | ||||
Driver Diameter (in / mm) | 54 / 1372 | 48 / 1219 | 54 / 1372 | 54 / 1372 |
Boiler Pressure (psi / kPa) | 123.30 / 850 | 123.30 / 850 | 145 / 1000 | 145 / 1000 |
High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 22.05" / 381x560 | 15" x 22.01" / 381x559 | 15" x 22.05" / 381x560 | 15.98" x 22.05" / 406x560 |
Tractive Effort (lbs / kg) | 9629 / 4367.65 | 10,813 / 4904.70 | 11,324 / 5136.49 | 12,852 / 5829.58 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 6.44 | 6.24 | 5.45 | 5.39 |
Heating Ability | ||||
Tubes (number - dia) (in / mm) | 108 - 2.008" / 51 | 135 - 2.008" / 51 | 125 - 2.008" / 51 | |
Flues (number - dia) (in / mm) | ||||
Flue/Tube length (ft / m) | 10.30 / 3.14 | 14.11 / 4.30 | 14.11 / 4.30 | |
Firebox Area (sq ft / m2) | 66.39 / 6.17 | 76.07 / 7.07 | 76.07 / 7.07 | |
Grate Area (sq ft / m2) | 13.99 / 1.30 | 10.76 / 1 | 13.99 / 1.30 | 13.99 / 1.30 |
Evaporative Heating Surface (sq ft / m2) | 835 / 77.60 | 588 / 54.63 | 902 / 83.83 | 893 / 82.99 |
Superheating Surface (sq ft / m2) | ||||
Combined Heating Surface (sq ft / m2) | 835 / 77.60 | 588 / 54.63 | 902 / 83.83 | 893 / 82.99 |
Evaporative Heating Surface/Cylinder Volume | 185.15 | 130.62 | 200.00 | 174.47 |
Computations Relating to Power Output (More Information) | ||||
Robert LeMassena's Power Computation | 1725 | 1327 | 2029 | 2029 |
Same as above plus superheater percentage | 1725 | 1327 | 2029 | 2029 |
Same as above but substitute firebox area for grate area | 8186 | 11,030 | 11,030 | |
Power L1 | 2016 | 3711 | 3247 | |
Power MT | 197.65 | 397.61 | 310.26 |