Class Elna type 3 heizdampf (Locobase 21146)
Data from [], last accessed 20 August 2023. See also dampflokomotivarchiv.de list of ELNA 3s at [
], last accessed 28 August 2023. Locobase 21141 for an essay on the ELNA program.
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. Most ELNA Type 3s were superheated and offered a maximum 50 kph (31 mph).
Compared to their saturated-steam partners in Locobase 21143, the heizdampf Type 3 eight-coupled tanks admitted drier steam to the cylinders. The use of superheaters which led to a rearrangement in the boiler, larger-diameter cylinders, and one more metric ton more on the rails distinguished them from their nassdampf brethren.
Krauss's Elna 4 boilers conformed to an older design because the cost of retooling to produce the new design was deemed not worth the expense.
Class Elna type 3 nassdampf (Locobase 21145)
Data from [], last accessed 20 September 2023. See Locobase 21141 for an essay on the ELNA program. Works numbers were 10369, 10416-10418 in 1924.
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.
This entry shows the specifications for nassdampf Type 3s. Their rated maximum speed was 45 kph (28 mph). Thriteen ELNA Type 3s used superheated boilers; they appear in Locobase 21146
Class Elna type 6 heizdampf (Locobase 21151)
Data from "Baureihe 92 2901 ...6494" on Alfred Gieseler's Dampfmaschinen und Lokomotiven website at [], last accessed 4 September 2023; and [], last accessed 28 August 2023. Locobase 21141 for an essay on the ELNA program.
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. Most ELNA Type 5s were superheated and offered a maximum 40 kph (25.5 mph).
Compared to the ELNA 3 D2ht (Locobase 21146), ELNA 6 embodied larger dimensions in almost every sense; only the ELNA stroke of 550 mm remained unchanged. Locobase has found that many standard-gauge eight-coupled tanks used the 550 mm (18.9") stroke length.
NB: As in most German steam locomotive data tables that include tube counts, lengths, and diameters, the tube heating surface comes from the interior (fire side) diameter, which when added to the firebox heating surface area, came to 88.1 sq m (848 sq ft). Locobase uses the exterior (water side) diameter, which is the single tube diameter measured. As a result, superheat ratios compare directly to those locomotives of Anglo-American origin.
Krauss's Elna 5 boilers conformed to an older design because the cost of retooling to produce the new design was deemed not worth the expense.
Seventeen different owners bought ELNA 6s between the first deliveries in1924 and the last in the 1940s.
Class Elna type 6 nassdampf (Locobase 21152)
Data from "Baureihe 92 2901 ...6494" on Alfred Gieseler's Dampfmaschinen und Lokomotiven website at [], last accessed 4 September 2023; and [], last accessed 28 August 2023. Locobase 21141 for an essay on the ELNA program. Hanomag produced the 1923 engines and one of the 1925 pair; works numbers were 10214-1025 and 10452. Henschel produced the other nassdampf ELNA 6; works number was 20503.
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.
Most ELNA Type 6s were superheated and offered a maximum 40 kph (25.5 mph).; see Locobase 21151.
