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Tender Locomotives 2-6-2 “Prairie”[Inhalt]
UIC Classification 1'C1'
Badenian IV g
Germany | 1912 | 5 produced
No. 830
No. 830
Die Lokomotive, April 1913
General
Built1912
ManufacturerMBG Karlsruhe
Axle config2-6-2 (Prairie) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length64 ft 8 1/8 in
Wheelbase30 ft 10 1/16 in
Fixed wheelbase12 ft 1 11/16 in
Total wheelbase54 ft 11 7/16 in
Empty weight143,080 lbs
Service weight158,733 lbs
Adhesive weight102,735 lbs
Axle load34,172 lbs
Fuel capacitycoal
Power
Power sourcesteam
Estimated power1,408 hp (1,050 kW)
Optimal speed41 mph
Top speed62 mph
Starting effort21,744 lbf
with start valve26,093 lbf
Power Plant
Driver diameter66.9 in
Boiler pressure232 psi
Expansion typecompound
Cylindersfour, HP: 14 3/16 x 25 3/16 in
and LP: 23 1/4 x 25 3/16 in
Boiler
Grate area40.4 sq ft
Firebox area143.7 sq ft
Tube heating area1,653.7 sq ft
Evaporative heating area1,797.4 sq ft
Superheater area462.8 sq ft
Total heating area2,260.2 sq ft
Calculated Values
steam locomotive
passenger
Von Borries compound
last changed: 08 2023
German Reichsbahn class 23
Germany | 1941 | 2 produced
23 001 in World War II times
23 001 in World War II times

Towards the end of the 1930s there was a need for a new passenger locomotive, which led to the development of the class 23 with the axle configuration 2-6-2. It was primarily intended to replace the Prussian P 8. Since the war that had just begun saw only a need for freight locomotives and passenger traffic was severely neglected, only two examples were built. After the war, however, these served as a model for a new variant in both parts of Germany, of which just over 100 were to be built.

After experience had already been gained at the beginning of the century in Prussia with the classes P 8 and G 10 of producing a passenger and freight locomotive with the same boiler, this principle was also applied here. Around the same time, the class 50 freight locomotive was built with a 2-10-0 wheel arrangement. Thus, the same boiler was used for both. In the development of the class 23, as with the 50, some new developments were dispensed with, which would have increased the possible boiler load by heating surface. As a result, however, the number of identical parts with earlier standard locomotives remained higher and production could also be carried out more cheaply. An improvement compared to older engines was a front wall on the tender. This fulfilled the same function as a closed cab and protected the crew when reversing.

Both examples came to the Reichsbahn of the GDR after the Second World War. In 1961, road number 23 001 received a modern, welded boiler with a combustion chamber, as was used on the Rekoloks. The second engine was not converted because it had damage to the wheels and frame and was therefore retired in 1967. The remaining engine was renumbered 35 2001 in 1970 to distinguish it from the newly built post-war locos.

As already mentioned, further developments of the original 23 were made on both sides of the inner-German border after the war. The class 2310 of the DR kept almost completely to the dimensions of the prototype, but benefited from modern technical achievements and contemporary manufacturing methods. Between 1955 and 1959, 113 pieces were made at the LKM Babelsberg. In contrast, the class 23 of the DB was based on BMAG's unimplemented plans for the alternative design of the 23. 105 of this variant were built between 1950 and 1959.

General
Built1941
ManufacturerSchichau
Axle config2-6-2 (Prairie) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length75 ft 3 1/8 in
Wheelbase35 ft 1 1/4 in
Fixed wheelbase13 ft 5 7/16 in
Total wheelbase62 ft 4 7/16 in
Empty weight176,590 lbs
Service weight194,668 lbs
Adhesive weight118,829 lbs
Total weight326,725 lbs
Axle load39,683 lbs
Water capacity6,868 us gal
Fuel capacity17,637 lbs (coal)
Power
Power sourcesteam
Indicated power1,479 hp (1,103 kW)
Optimal speed27 mph
Top speed68 mph
Starting effort34,887 lbf
Power Plant
Driver diameter68.9 in
Boiler pressure232 psi
Expansion typesimple
Cylinderstwo, 21 5/8 x 26 in
Boiler
Grate area41.9 sq ft
Firebox area171.1 sq ft
Tube heating area1,740.5 sq ft
Evaporative heating area1,911.7 sq ft
Superheater area684.6 sq ft
Total heating area2,596.3 sq ft
Calculated Values
steam locomotive
passenger
prototype
last changed: 01/2022
German Federal Railway class 23
Germany | 1950 | 105 produced
The last built 23 105 in July 1985 in Amberg with the original lettering
The last built 23 105 in July 1985 in Amberg with the original lettering
Werner & Hansjörg Brutzer

After the war, both German railways developed a new steam locomotive from the prototypes of the advanced class 23 from 1941 in order to supplement their fleets, which had been decimated by the war, and to be able to replace the Prussian P 8 in the long term. While the variant of the Reichsbahn was first designated as the class 2310 and later as the class 035, the Bundesbahn variant was only given the designation 23.

Like its Eastern counterpart, modern technologies were used, such as a boiler with a combustion chamber, and most importantly, welding technology was widely used. Much attention was also paid to the chassis. The resulting locomotive showed a significantly increased power compared to the P 8 and immediately proved itself in use. It was one of the few locomotives with a tender that could also run backwards at maximum speed, even if this was limited to 85 km/h for safety reasons and the full 110 km/h was only permitted forwards. In addition, with this class, great importance was attached to the working conditions of the crew, which made it one of the few German steam locomotives with a completely enclosed driver's cab. Previously the cabs were open at the back and partly on the sides, but in the class 23 there was a heated floor, a locker for clothes and even a possibility to heat food. In addition, 16 of the total of 105 examples were given push-pull train control for more efficient use in passenger transport with the control cars, which were still new at the time.

In spite of all these advantages, the end of the steam age was slowly approaching, and thus the class 23 did not survive the P 8 to be replaced by very many years. So it happened that the last P 8 was decommissioned by the Bundesbahn in 1974 for reasons of age, but the last 23 was also turned off in 1975 due to the changeover to the new types of traction.

General
Built1950-1959
ManufacturerHenschel, Jung, Krupp, Esslingen
Axle config2-6-2 (Prairie) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length69 ft 11 9/16 in
Wheelbase32 ft 5 3/4 in
Fixed wheelbase6 ft 6 3/4 in
Empty weight164,465 lbs
Service weight182,543 lbs
Adhesive weight123,459 lbs
Total weight319,229 lbs
Axle load41,667 lbs
Water capacity8,189 us gal
Fuel capacity17,637 lbs (coal)
Power
Power sourcesteam
Indicated power1,777 hp (1,325 kW)
Optimal speed32 mph
Top speed68 mph
Starting effort34,887 lbf
Power Plant
Driver diameter68.9 in
Boiler pressure232 psi
Expansion typesimple
Cylinderstwo, 21 5/8 x 26 in
Boiler
Grate area33.5 sq ft
Firebox area184.1 sq ft
Tube heating area1,498.1 sq ft
Evaporative heating area1,682.2 sq ft
Superheater area794.4 sq ft
Total heating area2,476.6 sq ft
Calculated Values
steam locomotive
passenger
last changed: 01/2022
Imperial-Royal State Railways class 329
Hungarian State Railways series IIIt No. 3751 to 3815, Hungarian State Railways class 323, Polish State Railways Ol11, Czechoslovak State Railways class 354.6, Italian State Railway class 687 and Yugoslav Railway classes 107 and 108
Austria-Hungary | 1907 | 160 produced
Die Lokomotive, June 1907

The kkStB network included many routes on which both passenger and express trains could not travel faster than 70 or 75 km/h due to the topographical conditions. When the four-coupled engines were no longer sufficient for these services, it was necessary to switch to a six-coupled engine. At that time, the 4-6-0 wheel arrangement was popular in other countries, but it didn't offer much space for a large firebox between the coupled wheels. Since a trailing axle was needed due to the low-energy coal in Austria, the class 110 for faster trains had been introduced as early as 1905 with a 2-6-2 wheel arrangement. So Gölsdorf also developed the class 329 with this wheel arrangement, but a driver diameter of only 1,614 mm.

The running gear was taken over almost unchanged from the tank locomotive of the class 229. This had a two-cylinder compound engine and had already been introduced in 1904 for passenger trains. Since the water and coal reserves on the locomotive were no longer available, a significantly larger boiler could be used. This was placed high in order to be able to arrange an even larger firebox above the last coupled axle and the trailing axle. Instead of a Schmidt superheater, a Clench-Gölsdorf type steam dryer was used.

Schematic drawing with dimensions
Schematic drawing with dimensions
Die Lokomotive, June 1907

The kkStB had 93 pieces built, which came from all the important factories in Austria. Although they reached up to 110 km/h in test drives, they were approved for 80 km/h. A speed of between 42 and 45 km/h was reached with a train load of 313 tonnes on a one percent steep, winding incline, which corresponds to an output of 950 to 1,000 hp. Alternatively, express freight trains of up to 750 tons and conventional freight trains of up to 1,150 tonnes could be transported on gentle gradients.

In addition to the kkStB, the k.u.k. Military railway Banjaluka-Dobrlin bought two pieces and the MÁV a total of 65 pieces. Although MÁV had its own factory, all engines were built in the same factories that kkStB engines came from. The Hungarian engines had the Westinghouse air brakes, while the Austrian had a vacuum brake.

After the First World War only 20 locomotives ended up with the BBÖ. The PKP had received 21 pieces and called them Ol11. After the Second World War, the PKP received another 14 of the BBÖ locomotives, which the Reichsbahn had relocated to Kraków as class 351 and were therefore in Poland after the end of the war. A total of 38 units came to Czechoslovakia to the CSD, which classified them as class 354.1. They were gradually all converted into superheated steam simples and were also given electric lighting and air brakes. The last of them were in service until 1968.

General
Built1907-1909
ManufacturerFloridsdorf, Wiener Neustadt, StEG, BMMF
Axle config2-6-2 (Prairie) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length52 ft 3 3/8 in
Wheelbase26 ft 4 1/8 in
Fixed wheelbase13 ft 1 1/2 in
Empty weight119,490 lbs
Service weight131,616 lbs
Adhesive weight94,799 lbs
Total weight212,084 lbs
Axle load31,747 lbs
Water capacity3,751 us gal
Fuel capacity15,432 lbs (coal)
Power
Power sourcesteam
Estimated power1,341 hp (1,000 kW)
Optimal speed47 mph
Top speed50 mph
Starting effort18,170 lbf
with start valve21,804 lbf
Power Plant
Driver diameter63.5 in
Boiler pressure218 psi
Expansion typecompound
Cylinderstwo, HP: 17 11/16 x 28 3/8 in
and LP: 27 3/16 x 28 3/8 in
Boiler
Grate area32.3 sq ft
Firebox area152.8 sq ft
Tube heating area1,158.2 sq ft
Evaporative heating area1,311 sq ft
Superheater area488.7 sq ft
Total heating area1,799.7 sq ft
Calculated Values
steam locomotive
passenger
Karl Gölsdorf
last changed: 09/2022
Imperial-Royal State Railways class 429
Austria-Hungary | 1909 | 480 produced
Works photo of the kkStB 429.117, later CSD 354.737
Works photo of the kkStB 429.117, later CSD 354.737
Variant429429.9
General
Built1909-19161911-1918
ManufacturerWiener Neustadt, StEG, FloridsdorfWiener Neustadt, StEG, Floridsdorf, BMMF
Axle config2-6-2 (Prairie) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length loco34 ft 7 1/4 in
Wheelbase26 ft 4 1/8 in
Fixed wheelbase13 ft 1 1/2 in
Total wheelbase45 ft 3 1/8 in
Empty weight121,475 lbs
Service weight134,923 lbs
Adhesive weight94,799 lbs
Axle load31,603 lbs
Fuel capacitycoal
Power
Power sourcesteam
Estimated power1,207 hp (900 kW)
Optimal speed39 mph27 mph
Top speed56 mph
Starting effort19,577 lbf28,856 lbf
with start valve23,492 lbf
Power Plant
Driver diameter63.5 in
Boiler pressure218 psi
Expansion typecompoundsimple
Cylinderstwo, HP: 18 11/16 x 28 3/8 in
and LP: 27 3/16 x 28 3/8 in
two, 18 11/16 x 28 3/8 in
Boiler
Grate area32.3 sq ft
Firebox area152.8 sq ft
Tube heating area921.4 sq ft
Evaporative heating area1,074.2 sq ft
Superheater area304.1 sq ft
Total heating area1,378.3 sq ft
Calculated Values
steam locomotive
passenger
Karl Gölsdorf
last changed: 10 2023
Imperial Russian Railways series С
Russia | 1910 | 678 produced
С.68
С.68
Vitaly V. Kuzmin
General
Built1910-1919
ManufacturerSormowo, Newski, Charkow, Lugansk
Axle config2-6-2 (Prairie) 
Gauge4 ft 11 13/16 in (Russian broad gauge)
Dimensions and Weights
Length69 ft 9 1/4 in
Wheelbase29 ft 2 3/8 in
Fixed wheelbase13 ft 9 3/8 in
Total wheelbase60 ft 7 7/8 in
Service weight167,110 lbs
Adhesive weight104,786 lbs
Total weight304,017 lbs
Axle load35,274 lbs
Water capacity6,076 us gal
Fuel capacity37,479 lbs (coal)
Power
Power sourcesteam
Estimated power1,475 hp (1,100 kW)
Optimal speed33 mph
Top speed71 mph
Starting effort28,738 lbf
Power Plant
Driver diameter72 in
Boiler pressure188 psi
Expansion typesimple
Cylinderstwo, 21 5/8 x 27 9/16 in
Boiler
Grate area40.9 sq ft
Evaporative heating area2,230.3 sq ft
Superheater area565.1 sq ft
Total heating area2,795.4 sq ft
Calculated Values
steam locomotive
express
last changed: 08 2023
London & North Eastern class V2 “Green Arrow”
Great Britain | 1936 | 184 produced
No. 40800 “Green Arrow”, the original No. 4771, at the Crewe Open Day in June 2003
No. 40800 “Green Arrow”, the original No. 4771, at the Crewe Open Day in June 2003
Our Phellap
General
Built1936-1944
ManufacturerDoncaster, Darlington
Axle config2-6-2 (Prairie) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length66 ft 5 1/8 in
Wheelbase33 ft 8 in
Fixed wheelbase15 ft 6 in
Total wheelbase56 ft 2 in
Service weight208,544 lbs
Adhesive weight146,944 lbs
Total weight325,024 lbs
Axle load49,280 lbs
Water capacity5,044 us gal
Fuel capacity16,800 lbs (coal)
Power
Power sourcesteam
Estimated power2,350 hp (1,752 kW)
Optimal speed44 mph
Starting effort33,730 lbf
Power Plant
Driver diameter74 in
Boiler pressure220 psi
Expansion typesimple
Cylindersthree, 18 1/2 x 26 in
Boiler
Grate area41.3 sq ft
Firebox area215 sq ft
Tube heating area2,216 sq ft
Evaporative heating area2,431 sq ft
Superheater area680 sq ft
Total heating area3,111 sq ft
Calculated Values
steam locomotive
express
freight
passenger
last changed: 08 2023
McCloud River No. 24 and 25
United States | 1925 | 2 produced
No. 25 in October 2015 on the Oregon Coast Scenic Railroad
No. 25 in October 2015 on the Oregon Coast Scenic Railroad
Ben Brooks

The last four steam engines the McCloud River Railroad purchased in 1925 were oil-fired and made by ALCO. The numbers 20 and 21 from 1924 already had the wheel arrangement 2-6-2 and came from Baldwin. Then numbers 22 and 23 with the same wheel arrangement came from ALCO. The numbers 24 and 25, which were again delivered in the same year, had two inches larger coupling wheels and larger cylinders to compensate.

They were in service with logging operations until the mid-1950s, when steam operations ended at the McCloud. The number 25 was reactivated in 1962 for special trips. After operating on its original route with some interruptions until 2001, it joined the Oregon Coast Scenic Railroad in 2011 and is still in service today.

General
Built1925
ManufacturerALCO
Axle config2-6-2 (Prairie) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase25 ft 8 in
Fixed wheelbase9 ft 9 in
Service weight147,000 lbs
Adhesive weight119,000 lbs
Total weight455,260 lbs
Water capacity4,000 us gal
Fuel capacity1,800 lbs (oil)
Power
Power sourcesteam
Estimated power1,200 hp (895 kW)
Optimal speed27 mph
Starting effort28,817 lbf
Power Plant
Driver diameter46 in
Boiler pressure180 psi
Expansion typesimple
Cylinderstwo, 19 x 24 in
Boiler
Grate area30.2 sq ft
Firebox area147 sq ft
Tube heating area1,095 sq ft
Evaporative heating area1,242 sq ft
Superheater area266 sq ft
Total heating area1,508 sq ft
Calculated Values
steam locomotive
freight
last changed: 02/2023
Midland Paget No. 2299
Great Britain | 1908 | only one produced
Midland Railway

Cecil Paget, the superintendent of the Midland Railway, had a steam motor locomotive built to his own design in 1908. It had eight uniflow cylinders located between the axles and controlled by a rotating shaft. They drove jackshafts, which in turn acted on three axles. The boiler was also special, having a large diameter and a firebox similar to the Wootten fireboxes used in the United States.

The financing of the locomotive was supposed to come entirely from Paget's private funds, but when these were not sufficient the Midland Railway had to intervene. Although the locomotive was tested on public lines, its existence was kept secret from the public. This was probably also due to the fact that Richard Deeley, locomotive superintendent at the time, did not believe in the success of the locomotive.

During testing, problems arose regularly, which mainly affected the valve gear. The locomotive was stored since 1912 and was no longer tested. It was apparently scrapped in 1918 in Paget's absence when he was in charge of the Railway Operating Division in France. The only known photograph appeared only after the 1923 grouping.

General
Built1908
ManufacturerDerby
Axle config2-6-2 (Prairie) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase31 ft 4 in
Fixed wheelbase17 ft 4 in
Service weight166,890 lbs
Adhesive weight132,940 lbs
Axle load44,315 lbs
Fuel capacitycoal
Power
Power sourcesteam
Starting effort37,179 lbf
Power Plant
Driver diameter64 in
Boiler pressure180 psi
Expansion typesimple
Cylinderseight, 18 x 12 in
Boiler
Grate area55 sq ft
Calculated Values
steam locomotive
freight
passenger
steam motor
prototype
Cecil Walter Paget
last changed: 05/2023
New Zealand Railways class N
New Zealand | 1885 | 12 produced
No. 354 on an old photo
No. 354 on an old photo
Albert Percy Godber / Godber Collection, Alexander Turnbull Library
Variant1885 variant1901 variant
General
Built1885, 18911901
ManufacturerBaldwin
Axle config2-6-2 (Prairie) 
Gauge3 ft 6 in (Cape gauge)
Dimensions and Weights
Length50 ft 2 in
Wheelbase23 ft 2 in22 ft 1 in
Fixed wheelbase9 ft 6 in
Total wheelbase42 ft 4 in40 ft 11 1/2 in
Service weight65,408 lbs69,810 lbs
Adhesive weight50,480 lbs50,310 lbs
Total weight101,248 lbs110,000 lbs
Axle load17,360 lbs17,300 lbs
Water capacity6,005 us gal
Fuel capacity16,800 lbs (coal)
Power
Power sourcesteam
Estimated power350 hp (261 kW)400 hp (298 kW)
Optimal speed21 mph16 mph
Starting effort10,538 lbf15,612 lbf
Power Plant
Driver diameter49 in
Boiler pressure135 psi200 psi
Expansion typesimple
Cylinderstwo, 15 x 20 in
Boiler
Grate area16 sq ft
Firebox area87.5 sq ft82 sq ft
Tube heating area830.4 sq ft802 sq ft
Evaporative heating area914 sq ft884 sq ft
Total heating area914 sq ft884 sq ft
Calculated Values
steam locomotive
passenger
last changed: 09 2023
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