ATSF 1158 class

The Atchison, Topeka and Santa Fe Railway's 1158 class comprised two 2-6-6-2 articulated steam locomotives built in 1910 by the Baldwin Locomotive Works.cite web
title = "Santa Fe All-Time Steam Roster"
url = http://atsf.railfan.net/atsfstea.html
author = Werkema, Evan
work = ATSF.Railfan.net
date = 1996
accessdate = 2008-01-16] They were built with flexible, jointed boilers, an experiment confined to the Santa Fe; the railroad considered it successful enough to build four of the later 3300 class locomotives with flexible boilers, but both classes were scrapped in the 1920s.

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