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The Oldenburg Class T 1 was an early German locomotive operated by the Grand Duchy of Oldenburg State Railways. It was a four-coupled tank locomotive for shunting duties. There were two types, of which the later one entered the Deutsche Reichsbahn fleet and became Class 98.74.
The first variant, called the T 1, emerged from a joint project with the firm of Krauss in their railway company's own workshop. The 12 locomotives built between 1871 and 1873 belonged to the few engines that were developed specifically for the Oldenburg railways. They had a boiler pressure of 98.1 kN and maximum permitted speed of 40 km/h.
These engines had already been retired on the formation of the Deutsche Reichsbahn.
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Between 1888 and 1892 the Oldenburg State Railways acquired another 18 locomotives, which were grouped into Class T 12. This time it was not built by them, the locomotives were supplied by Hohenzollern AG. They were however designed specially for the Oldenburg railways.
Unlike the earlier version, these engines had a 2 bar higher boiler pressure and larger coupled wheel and cylinder diameters. In addition the top speed was not 45 km/h. An unusual feature was the driver's cab roof, that was rounded front and back and not, as was then common, at the sides.
Five examples were taken over by the Deutsche Reichsbahn as 98 7401–98 7405. The last two engines were retired by 1933.
The Prussian Class S 3s were saturated steam locomotives developed by Hanomag for the Prussian state railways and were built from 1893.
The Prussian Class P 8 of the Prussian state railways was a 4-6-0 steam locomotive built from 1906 to 1923 by the Berliner Maschinenbau and twelve other German factories. The design was created by Robert Garbe. It was intended as a successor to the Prussian P 6, which was regarded as unsatisfactory.
The Bavarian Class GtL 4/4 engines were superheated steam locomotives in service with the Royal Bavarian State Railways for duties on branch lines (Lokalbahnen).
The Oldenburg T 2 steam locomotives were German 0-4-0 tank engines built between 1896 and 1913 for the Grand Duchy of Oldenburg State Railways. They were designed for use on branch lines. A total of 38 units were produced, based on a Prussian T 2 prototype and differing only in the boiler fittings. Unlike their Prussian cousins, they had no steam dome and the regulator was located in the smokebox. Its permitted top speed of 50 km/h was also higher than the Prussian version.
The steam locomotives of Oldenburg Class P 4.1 were German locomotives built for the Grand Duchy of Oldenburg State Railways between 1896 and 1902. They were based on a Prussian P 4.1 prototype and a total of 19 engines were procured up to 1902. Overall the Oldenburg engine was less powerful than its Prussian counterpart, because the grate area was smaller and the steam dome was omitted. The regulators was housed in the smokebox. The Deutsche Reichsbahn took them over in 1920 and allocated them numbers 36 1201 to 36 1219. They were retired in the 1930s.
The Oldenburg G 7 steam locomotive was a German 0-8-0 locomotive produced for the Grand Duchy of Oldenburg State Railways. It was an eight-coupled engine, intended for heavy goods train duties, and was based on the Prussian G 7. It had a 1,660 mm diameter boiler located 2,820 mm above the top of the rails in the plate frame, and was equipped with a single Walschaerts valve gear as well as a Lentz valve gear. Thirteen were taken over by the Deutsche Reichsbahn, grouped into DRG Class 55.62 and given numbers 55 6201–55 6213.
The Prussian T 13 was a series of tank locomotives built in large numbers for the various German state railways, notably the Prussian state railways, and the Deutsche Reichsbahn during the early part of the 20th century.
The Oldenburg Class T 5.1 was a German steam locomotive built for the Grand Duchy of Oldenburg State Railways as a tank engine for passenger train duties. Its design was based on that of the Prussian T 5.1.
The express train locomotives of Oldenburg Class S 10 were built for the Grand Duchy of Oldenburg State Railways for duties on the Bremen–Oldenburg–Wilhelmshaven line, which was the most important express route in Oldenburg. They were amongst the few locomotives of this railway company that were not based on those of the Prussian state railways, because the light railway track dictated that they had to have an average axle load of no more than 15 t which was lower than that on comparable Prussian vehicles.
The Prussian Class S 10 included all express train locomotives in the Prussian state railways that had a 4-6-0 wheel arrangement. There were four sub-classes: the S 10, S 10.1 and S 10.2.
The Saxon Class XV T was a class of goods train steam locomotive operated by the Royal Saxon State Railways, which had been conceived for hauling trains and acting as banking engines for routes in the Ore Mountains. In 1925 the Deutsche Reichsbahn grouped them into their DRG Class 79.0.
The Class T 3s of the Grand Duchy of Oldenburg State Railways were tank locomotives for duties on local and branch lines. They were broadly similar to the Prussian T 3. In terms of performance they were no different from the Oldenburg T 2; but the T 3 had a lower axle load and a somewhat higher adhesive weight of 4.4 tonnes.
The steam locomotives of Oldenburg Class B of the Grand Duchy of Oldenburg State Railways were built in the early 1900s for working the metre gauge network on the German island of Wangerooge.
The Prussian Class T 3 steam locomotives procured for the Prussian state railways were 0-6-0 tank locomotives. Together with the Prussian T 2 they were the first locomotives that were built to railway norms. The first units were delivered by Henschel in 1882.
The Prussian G 8.2 class of locomotives actually incorporated two different locomotive types: one was the Prussian/Oldenburg G 8.2, for which the Deutsche Reichsbahn subsequently issued follow-on orders; the other was the G 8.2 of the Lübeck-Büchen Railway.
The Saxon Class VII T were twin-coupled tank engines of the Royal Saxon State Railways designed for branch line (Sekundärbahn) operations. In 1925, the Deutsche Reichsbahn grouped these locomotives 1925 into their Class 98.70.
The class IV f locomotives of the Grand Duchy of Baden State Railway were express locomotives with a 4-6-2 (Pacific) wheel arrangement. They later passed to the Deutsche Reichsbahn, who classified them as class 18.2. These were the first Pacific locomotives in Germany and the second in Europe after the Paris-Orléans Railway 4500-series that had appeared a few months earlier.
The class IV h (four-h) locomotives of the Grand Duchy of Baden State Railway (German: Großherzoglich Badische Staatseisenbahnen, G.Bad.St.E.) were express locomotives with a 4-6-2 (Pacific) wheel arrangement. They later passed to the Deutsche Reichsbahn, who classified them as class 183.
The Prussian G 7.2 was a class of 0-8-0 tender compound locomotives of the Prussian state railways. In the 1925 Deutschen Reichsbahn renumbering plan, the former Prussian locomotives produced from 1895 to 1911 were given the class designation 55.7–13; while the former Grand Duchy of Mecklenburg Friedrich-Franz Railway locomotives were classified as 55.57.
The Prussian G 4.2 was a class of compound 0-6-0 goods locomotive of the Prussian State Railways. It was a compound version of the G 3 and G 4.1 types by Henschel.
| Early locomotives |  | |
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| Passenger and express train locomotives | ||
| Goods train locomotives | ||
| Tank locomotives | ||
| Narrow gauge locomotives and railbuses | ||