According to theory a triple expansion engine developsd equal powed from every cylinder. Therefore somehow the HP cylinder develops roughy 5000 HP from 165 to 23 PSI, the IP 5000 from 23 PSI to -2 PSI, and the LP from -2 PSI to condenser vacuum (usually 22" Hb or -10.4 PSI).

Imagine all the energy going up the stack in the 100 years of choo choo train locos and river steam boats.

This takes us to steam engine indicators, indicator cards, and planimeters. Anyone care to take a cut at it?

And an oddity for the terminally curious:

Imagine all the energy going up the stack in the 100 years of choo choo train locos and river steam boats.

This takes us to steam engine indicators, indicator cards, and planimeters. Anyone care to take a cut at it?

And an oddity for the terminally curious:

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