While surfing the net looking for info on how a T-boiler system works, I came across a 177 page PDF of a book entitled Locomotive Boilers and Engines written in 1920. It includes everything from “The Rocket” and “The Best Friend of Charleston” to “modern” super-power locomotives. It is an amazing read.
http://users.fini.net/~bersano/english-anglais/LOCOMOTIVE%20BOILERS%20&%20ENGINES_Llewellyn_%20V_%20Ludy-1920.pdf
For some reason I couldn’t get it to hotlink.
It contains more than you will ever want to know about those beasts.
Enjoy.
