Prussian State 2-4-0 Locomotives in Germany

Class P 1 (Locobase 6344)

Data from Christian Lindecke's website [] (visited 14 November 2004); "Die Bezeichnung der preussischen Lokomotiven" on the BeitrSge zur Lokomotiv- und Eisenbahngeschichte website (compiled by Ingo Hutter) at []; and "Preu_ische P 1" in Wikipedia at [], last accessed 24 October 2022.

Hutter's "Beitrage ..." contains a table of all Prussian State locomotives given type numbers in 1906. Locobase converted the HTML information to an Excel table in order to separate the quantities delivered to predecessor railways from the number given P1 numbers. The result: The 100 P1s on the roster in 1906 came from 702 2-4-0s possessing at least similar specifications and delivered over the previous 40 years.

Class P2 (Locobase 4923)

Data from "Prussian P 2" in Wikipedia at [], last accessed 18 January 2023.

The Prussian Minister for State Works convened an eight-day meeting in 1874 with head engineers of several German railroads and arrived at two "Standard" designs --a 2-4-0 for passenger work and an 0-6-0 for freight operations. These Personenzug-

schlepptenderlok were speed-rated at 70-90 kph (43.5-56 mph).

Class P3.1 / 34.7 (Locobase 713)

See Christian Lindecke's German locomotive website -- [] (last accessed 5 February 2006) and Data from diagram UG Type 86, Societe Alsacienne de Constructions Mecaniques from locomotive book supplied by Dany Machi up at [] as

Diagrammes des machines SACM construites a GRAFENSTADEN (October 2007).

The Prussian Minister for State Works convened an eight-day meeting in 1874 with head engineers of several German railroads and arrived at two "Standard" designs --a 2-4-0 for passenger work and an 0-6-0 for freight operations.

The 2-4-0 design was based on several private designs, but had relatively low drivers for express work. Nevertheless, 695 engines of this P3 standard were built between 1884 and 1903. There were variations, as one might expect, but the SACM diagram fairly represents the basic P3 design. A further development of the express engine by the Magdeburg Region resulted in the S1 (see separate entry).

Class S1 / BR 12.70 (Locobase 712)

Data from Reder (1974) and Christian Lindecke's [].

The Magdeburg Region railroad was not pleased with the P3 Standard passenger engine developed by a conference of engineers and the Prussian Minister for State Works in 1874-1875. Wanting more power and higher drivers, the Prussian State Railways introduced an engine that later became standardized as the S1 (S=Schnellzuglokomitiv).

After an initial flirtation with two-cylinder compounds (Locobase 1218), the KPEV turned to the design shown here. Still carrying its horizontal cylinders ahead of the single leading axle, the S1 was as powerful a 2-4-0 as was built by any company. An average speed of 53 mph (85 km/h) pulling 172 tons over 159 miles (256 km) between Berlin and Hanover is an indication of the engine's abilities.

261 were completed between 1884 and 1895. They were superseded by the S3 compounds; see separate entry.

Class T 4.1 (Locobase 6342)

Data from Christian Lindecke data from [] (14 November 2004).

Slightly smaller, lighter variant of the original T4 (Locobase 6341) and, like the T4s, headed local passenger service in many instances as well as in freight.. Of all the T4s sub-classes, the T4.1 appeared in the most numbers and most of those used the "Berlin" domeless boier. Variants within the T4.1s The eight delivered to the Eustin-Lubeckerbahn arrived with steam domes and one later acquired a superheater.

Class T 4.3 (Locobase 6343)

Data from Christian Lindecke data from [] (14 November 2004).

Last in a series of Prussian tank locomotives.

Class T4 (Locobase 6341)

Data from Christian Lindecke data from [] (14 November 2004); and "Preuáische T 4" in Wikipedia at [], last accessed 18 November 2023.