Comments by "SeanBZA" (@SeanBZA) on "Breaking Down Iconic TITANIC Scenes" video.

  1. Only the outer 2 steam turbines could reverse, and you had to stop them, and brake the shaft, then move the steam valves to the alternate position on the main shaft cam, so that the order of operation would be changed. Then you used a small steam donkey engine to run the engine to the point it is on the inlet stroke and slowly open the steam input. Then the steam runs it in reverse, and you increase flow and pressure to the desired speed. Central steam turbine would not be used, as it did not have the ability, due to being a steam turbine, and thus having blades that only faced one direction, to be reversed, so it would be bypassed, and the steam from the side engines would go direct to the condenser, dumping massive amounts of heat into it. Running in reverse is very inefficient, you lose a lot of the steam energy that way, as both the propellers and the bearing blocks that transfer thrust to the hull are optimised for forward motion.
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  2. Electric power failed when the keel broke, as that then disconnected the steam supply from the small steam plants that powered the electrical system, and also from the assorted bilge pumps that were doing their utmost to pump water out, and prolong the sinking. By that time the electrical crew had likely run out of rewireable fuses, and had simply started replacing them with the neutral links, as those also fit the fuse holders, but have a solid bar, in order to provide power to whatever parts of the electrical system were left. They probably saw the front part stop drawing power deck by deck, as the cables were snapped in the trunks as the ship flexed, and thus were the first to know, aside from the stoker gang who were still running the boilers, that the ship was tearing itself in half. Those cables will still be there, as copper chloride deposits in the iron oxide, for millions of years, long after the wreck has been eaten away by the iron loving bacteria, and it is buried by slow accumulation of calcium carbonate silt from plankton. In a few million years, when that sea floor is uplifted as limestone, there might still be recognisable objects found, mostly glass and ceramic items, and the odd bits of the engine castings that did not get totally eaten before they got covered, and of course all the lead that was used to sheath the cables in the wiring trunks, which might still have the remains of the copper in them as well.
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  3. By modern standards Titanic is tiny, compared to almost every container ship and passenger liner. Even small container ships, destined to run into small ports with a few hundred containers on board, are still bigger, and also generate more power for the electrical system, and the engines deliver an order of magnitude more power, for a much lower fuel use overall.
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  4.  @Galiant2010  Yes 2.5 hours became 29 minutes....
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  5.  @Galiant2010  Thing is that YT copyright system is broken, anybody can claim they own the copyright on anything, and the video will be taken down during the resolution process. the resolution process is the one who got the notice asking the one who made the claim that it was fair use, or that they do not actually own the copyright, and the universal response is "sue me". plenty of examples of copyright being claimed for literal silence of a few seconds, or somebody claiming copyright of other people's copyright free work. News org runs a news segment containing NASA footage, then sends a copyright claim to all who used the same NASA footage, even if it was directly from NASA. Others claim the captions are theirs, because they have a video that, because it was created by the same open source video editor, they claim the fonts used are theirs, and even the words like "the", "and" are copyrighted by them.
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