Data from "ELNA 4" in Wikipedia at [], last accessed 3 September 2023. Works number was 12158-12159.
Caveat: The following advice recognizes that reputable sources disagree on many points. Locobase has tried to identify a representative type for each ELNA. To see all the variants of the design, Locobase recommends three websites still active as of September 2023:
1) Albert Gieseler's Lokomotiv-Baureihen page at [] beginning with BR 92 (look for build dates between 1924-1945)
2) The ELNA screens at dampflokomotivenarchive.de at [], whose subpages show all the locomotive identified as ELNAs.of a particular type.
3) Various Wikipedia sites using the term ELNA.
All ELNAs could be produced with either saturated boilers (nassdampf) or superheated boilers (heizdampf). Regardless of wheel arrangement or boiler type, all ELNA cylinders used the same 550 mm (21.65") stroke. The Type 4s shown here used superheaters; the saturated-boiler Type 4s appear in Locobase 211450
Unlike most ELNAs, which had T-shaped water tanks behind the cab, O&K chose to put the water tanks in their usual places on the running boards in front of the cabs. Their owner's railway ran 31.8 km (19.75 miles) between the two named cities north of Berlin and southeast of Hamburg.
In 1940, the 1 went to the Lenhiner kleinbahn. After the end of World War II, the emergence of an East Germany claimed both locomotives. The 1 remained with the LKB until 1951, when it was transferred to LOWA Wildau. 1963 saw the 89 6676 move to the Bitterfeld industrial complex. First it served the Bad K"stritz plant, then the Stendnitz plant part in 1965 and finally theDornburg/Saale plant) in May 1968.
Meanwhile the 2 remained with the GNK until 1949, when it moved to the Ruppiner Eisenbahn. For more than fifteen years, 89 6282 continued operating until it was withdrawn in February 1966.
See Locobases 21142-21153 for the other ELNA types.
All ELNAs could be produced with either saturated boilers (nassdampf) or superheated boilers (heizdampf). Regardless of wheel arrangement or boiler type, all ELNA cylinders used the same 550 mm (21.65") stroke. The Type 4s shown here used superheaters; the saturated-boiler Type 4s appear in Locobase 211450
Unlike most ELNAs, which had T-shaped water tanks behind the cab, O&K chose to put the water tanks in their usual places on the running boards in front of the cabs. Their owner's railway ran 31.8 km (19.75 miles) between the two named cities north of Berlin and southeast of Hamburg.
In 1940, the 1 went to the Lenhiner kleinbahn. After the end of World War II, the emergence of an East Germany claimed both locomotives. The 1 remained with the LKB until 1951, when it was transferred to LOWA Wildau. 1963 saw the 89 6676 move to the Bitterfeld industrial complex. First it served the Bad K"stritz plant, then the Stendnitz plant part in 1965 and finally theDornburg/Saale plant) in May 1968.
Meanwhile the 2 remained with the GNK until 1949, when it moved to the Ruppiner Eisenbahn. For more than fifteen years, 89 6282 continued operating until it was withdrawn in February 1966.
See Locobases 21142-21153 for the other ELNA types.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | Elna type 4 heizdampf |
Locobase ID | 21149 |
Railroad | Gransee-Neuglosow |
Country | Germany |
Whyte | 0-6-0T |
Number in Class | 2 |
Road Numbers | 1-2/DR 89 66.6676, 6282 |
Gauge | Std |
Number Built | 2 |
Builder | Orenstein & Koppel |
Year | 1927 |
Valve Gear | Heusinger |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 10.17 / 3.10 |
Engine Wheelbase (ft / m) | 10.17 / 3.10 |
Ratio of driving wheelbase to overall engine wheelbase | 1 |
Overall Wheelbase (engine & tender) (ft / m) | 10.17 / 3.10 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 30,865 / 14,000 |
Weight on Drivers (lbs / kg) | 98,547 / 44,700 |
Engine Weight (lbs / kg) | 98,547 / 44,700 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 1452 / 5.50 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.70 / 1.50 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 55 / 27.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 47.20 / 1200 |
Boiler Pressure (psi / kPa) | 203.10 / 1400 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16.93" x 21.65" / 430x550 |
Tractive Effort (lbs / kg) | 22,696 / 10294.74 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.34 |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 11.48 / 3.50 |
Firebox Area (sq ft / m2) | |
Grate Area (sq ft / m2) | 15.07 / 1.40 |
Evaporative Heating Surface (sq ft / m2) | 631 / 58.60 |
Superheating Surface (sq ft / m2) | 230 / 21.40 |
Combined Heating Surface (sq ft / m2) | 861 / 80 |
Evaporative Heating Surface/Cylinder Volume | 111.86 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 3061 |
Same as above plus superheater percentage | 3887 |
Same as above but substitute firebox area for grate area | |
Power L1 | |
Power MT |