4-4-2 Steam Locomotives in Germany

Class Group IId - 739 (Locobase 9482)

Data from Lawford H Fry, ""The Steam Locomotive of the Future"", Cassier's Magazine, Volume XXXI, (October 1906 - April 1907), p.216.

OS Nock (RWC III, pl 106) credited these engines with 2,550 sq ft of heating surface and he clearly seems to be referring to a version like that shown in the Cassier's article; see Locobase 1489 for the better-known engines in the IId class

Class S 2/5 / BR 14.1 (Locobase 3875)

Data from Maurice Demoulin, Locomotive Actuelle ... (Paris: Librairie Polytechnique Ch.Beranger, 1906), p 239-240, supplemented and slightly amended by [], last accessed 14 May 2011.

After trying out the Vauclain compounds, Bavaria bought 10 locomotives from Maffei that were of a more standard 4-cylinder compound layout in which each valve-cylinder combination had its own valve gear and drove on its own crosshead. LP cylinders were outside, HP inside. Anton Hammel, Maffei's chief designer, modeled his frame construction after the American engines' bar frame.

These racers pulled 250 tons on the level at 70 mph (110 kph) and headed up the Orient Express and the North-South Express. But, Joost Wilbrink ([]) notes, Bavarian route profiles had very little flat running in them and these engines went to the Pfalz in 1911. Five were left for the DRG to take up in the 1920s.

Class S 2/5 // BR 14.1 (Locobase 3874)

Data from Christian Lindecke [], first accessed 20 December 2003. Additional data from Maurice Demoulin, Locomotive Actuelle ... (Paris: Librairie Polytechnique Ch.Beranger, 1906), p 240, which gives a larger figure for the heating surface that Locobase adopts; and DeGolyer, Volume 23, p. 159. (Thanks to Ivo Ruitishauser for his 26 September 2024 email reporting the Bay State's road numbers and the proper definition(s) for BR.) Works numbers were 18380-18381 in November 1900.

These were two Vauclain compounds with 13" (330 mm) piston valves imported by the Bavarian railway as their first compounds.

Upon its formation in 1923, the Deutsches Reichsbahn-Geselleschaft (DRG) created the Baureihe (literally translating as "build class", according to Ivo Rutishauser) for this pair. Although recorded, the two retired in the same year and never operated under those numbers.