Wainwright's original design was criticised by the Directors for the use of saturated steam and slide valves, both of which were considered old fashioned in the 20th century.
42.
As a result, in 1907 nine similar machines with saturated steam operation were built, as the "'Bavarian Pt 2 / 5 N "'class.
43.
On the saturated steam engines, the high-pressure cylinder was on the right hand side of the locomotive, and the low-pressure cylinder on the left hand side.
44.
The S 6 then became the heaviest 4-4-0 locomotive on continental Europe, even outweighing the subsequently built four-cylinder, saturated steam locomotives of Class S 7.
45.
One major modification was made by Robert Urie, who exchanged the saturated steam boilers for the superheated variety, resulting in an enlarged smokebox when compared to that fitted on the S11 Class.
46.
While the new G 4 / 5s nos 105 and 106 were manufactured in the traditional saturated steam configuration, nos 107 and 108 used superheated steam for the first time on the Rhaetian Railway.
47.
As with the other members of the B1 class many of the locomotives were with superheating between 1916 and 1927, although in several cases they were returned to saturated steam between 1941 and 1950.
48.
The Deutsche Reichsbahn took over the remaining 20 saturate steam engines as "'Class 17.4 "'( 17 401 420 ) and had them converted to superheated locomotives in 1925.
49.
Six out of these seven were also fitted with superheating between 1919 and 1930, raising the weight to, although in two of these cases they were returned to saturated steam in 1941 and 1944.
50.
Saturated steam at 600 psi is channeled from each steam generator to a common header, where the steam is then sent to the main engine, electrical generators, aircraft catapult system, and various auxiliaries.
