I'm sure this question has been asked a thousand times, but here goes.
Reading the Wikipedia story of Pennsy's S2 Turbines, the statement is made that the Pennsylvania Railroad designed the locomotive as one of the last ditch efforts to "prolong the dominance of steam locomotives". If the railroads were seeing the light at the end of the tunnel and adopting dieselization after the war, why was the S2, or for that matter, any steam locomotive designed and built after the war carried through ?
I'm sure the locomotive builders, like Baldwin, Lima, etc, were trying to stay in business. It just seems odd, since diesels were around for at least twenty years before the war and were proving to be much more economical.
