I ran across this video on flywheels, and want to pass it along. The channel has a number of other interesting videos I haven’t seen yet, that are also related to large steam-driven machines and their problems when they failed.
At near 4 minutes in, I saw this view of one of my favorite steam engines: the Union Mine pump on the Comstock. But this angle of view was new to me, and with the youtuber’s help I found the source.
https://westernmininghistory.com/gallery-image/41110/
Here’s another view.
https://westernmininghistory.com/gallery-image/40193/
The flywheel was reportedly 40’ diameter.
Fun stuff!