
In order to be able to pull express trains more quickly in the hill country, the Deutsche Reichsbahn-Gesellschaft DRG was already planning the 06, which was equipped with four coupling axles, parallel to the commissioning of the first 05. The 06, which was also designed with three cylinders, had an output of 2,800 hp and reached a top speed of 140 km/h. According to contemporary reports, the tractive power of both locomotives delivered in 1939 was impressive, but damage to the boiler frequently more…

The Ivh of Badische Staatsbahn, later the 18³ series, was purchased from 1918 as an express steam locomotive primarily for the Rhine Valley Railway Basel - Mannheim. The manufacturer of all 20 machines was the renowned Munich locomotive factory J.A. Maffei. The IVh was designed as a 4-cylinder composite engine. The balanced drive made her a fast cross-country skier and the top speed could be increased from the original 110 km/h to 140 km/h. The use of the 18.3 on the famous Rheingold Express more…

In 1908 the locomotive factory J.A. Maffei was commissioned by the Royal Bavarian State Railway to develop a new express locomotive based on the IVf delivered to the Baden State Railway. The series a-c and f-i with 1870 mm high driving wheels were designated as series 18.4 by the Deutsche Reichsbahn-Gesellschaft DRG, as were the series d and e equipped with 2000 mm driving wheels. The four-cylinder compound locomotives produced 1,770 hp and reached 120 km/h with very good driving more…

The Einheitslok program of the Deutsche Reichsbahn-Gesellschaft DRG provided for the triple-coupled class 24 steam locomotive for light passenger train service over longer distances. A total of 95 examples of the 920 hp two-cylinder locomotive with a top speed of 90 km/h were procured from 1926. With an axle load of only 15 t, the 24 was initially used on main and branch lines in West and East Prussia, which earned it the nickname "Steppe horse". The DB shut down the last locomotive in 1966, more…

The Prussian P8, built from 1906, was perhaps the best-known German steam locomotive series. Its designer Robert Garbe even wanted to see it used in express train service, but approval for 110 km/h failed due to its rough running at high speeds. The 1,180 hp two-cylinder locomotives reached 100 km/h and were considered undemanding and reliable pulling horses for passenger trains. They also proved their worth in front of light and fast freight trains. Of the 3,444 examples that were built for more…

The Bavarian P3/5 H (later BR 38.4) from 1921 is considered a successful design, but with only 80 units built, it was not nearly as widespread as its Prussian counterpart, the P8. Manufacturer J.A. Maffei took over the four-cylinder engine from its predecessor, the P3/5 N, but designed the three-coupler as a superheated steam locomotive. In combination with the wheel diameter of 1640 mm, the 1200 hp locomotive, later known as the BR 38.4, reached a top speed of 90 km/h. Due to its impressive more…

For the heavy express train service in the hill country, the Prussian KPEV had a four-coupled three-cylinder locomotive developed instead of replicating the proven Saxon XX HV with four cylinders. Borsig's design was then implemented, although the required maximum axle load of 17 t was exceeded by almost 2 t, meaning the locomotive could only be used on a few routes. With its output of 1,620 hp, it reached a top speed of 110 km/h. When most of the main routes were upgraded for an axle load of more…

In order to determine the suitability of the different drives for heavy freight service, the German Deutsche Reichsbahn-Gesellschaft DRG included five-coupled tender locomotives with two and three cylinders in its standard locomotive program. In 1927, ten of each type were initially built. A further 35 of the 43 with two cylinders followed in 1928. In comparison, the two-cylinder locomotive proved to be equal to the three-cylinder locomotive known as the 44 series up to the medium power range more…

In the mid-1950s, the boilers of the BR50 standard locomotives of the Deutsche Reichsbahn DR had reached the end of their service life due to the use in heavy freight traffic. Since the DR was unable to obtain replacements for its 50s, which were universally applicable with an axle load of just 15 t, in the foreseeable future, it was decided to reconstruct many locomotives with a boiler largely equivalent to that of the new BR 23 locomotive. From 1957, the DR reconstructed a total of 208 more…

In the mid-1950s, the boilers of the BR50 standard locomotives of the Deutsche Reichsbahn DR had reached the end of their service life due to the use in heavy freight traffic. Since the DR was unable to obtain replacements for its 50s, which were universally applicable with an axle load of just 15 t, in the foreseeable future, it was decided to reconstruct many locomotives with a boiler largely equivalent to that of the new BR 23 locomotive. From 1957, the DR reconstructed a total of 208 more…