On this #throwbackthursday, read all about the battle between steam and diesel on U.S. railroads in the 1940's. The cover story of the August 1945 Fortune Magazine addresses experimental advances in steam technology that locomotive manufacturers were pursuing.
While there is some discussion of the ATSF 2900 class towards the end, this article addresses primarily the experiments the Pennsylvania Railroad (PRR) was undertaking in advancing steam. From the T1 to the S2, this article has detail and perspective from the era on advances the steam engineers were pursuing.
Download and read the entire piece by clicking on this link (4.37 MB) or the image