Comments by "" (@Allan_aka_RocKITEman) on "Steam Submarines: Incredibly Dangerous REAL Designs" video.

@H I Sutton - Covert Shores >>> I am posting this while I am watching the video, at about the 08:10 mark. You mentioned the submarine that fired a torpedo underwater, being the first submarine to do so. What was the source of propulsion for the torpedo? Was it also some kind of steam power plant?
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 @HISuttonCovertShores >>> Rodger that -- Thanks!
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@HISuttonCovertShores >>> Just an observation on an image appearing at about 12:56 in this video: That submarine appears to have its bow to the left & stern to the right, and is travelling to the left. The exhaust from the smokestack matches that. However, the profile of the conning tower makes it appear as though the bow should be to the right and stern to the left. EDIT → At about 21:24 in this video: That drawing shows the conning tower in the profile I would expect to see.
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@HISuttonCovertShores >>> While watching this video, something occurred to me: Steam powered submarines burning oil could just shut off the burners in preparation for diving. I presume the earliest steam powered subs ran on coal. How would you 'shut off' a coal-fired combustion system prior to submerging? Just shutter it closed to remove its oxygen source?
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