@MELGAR posted:There was a recent Forum discussion of this question. I'm not sure we ever got to the definitive reason because the design depends on multiple factors as well as the judgment of the designer. Here is the link:
https://ogrforum.ogaugerr.com/...c/148253672436060119
MELGAR
I remember that discussion. While I did not follow it, I did read some of the comments by those that know way more about steam than I know about what my grass looks like in the morning when I step outside. Needless to say that it is a great read, and we'll worth it in my opinion.
On a side note, I had to ask Rich a question recently which I thought was a load of bull. Rich confirmed that it was indeed bull, but went out of his way to explain how steam was used in a few different engines, even though I didn't ask. I am grateful he did because I am sure that eventually I would have a need to know whether just curious. Always brings a smile.
