Comments by "Doug JB" (@dougjb7848) on "The Drydock - Episode 304 (Part 1)" video.

  1. Ships did not “fall into a void created by a torpedo exploding under their keel.” Bubble jet effect: The bubble jet effect occurs when a mine or torpedo detonates in the water a short distance away from the targeted ship. The explosion creates a bubble in the water, and due to the difference in pressure, the bubble will collapse from the bottom. The bubble is buoyant, and so it rises towards the surface. If the bubble reaches the surface as it collapses, it can create a pillar of water that can go over a hundred meters into the air (a "columnar plume"). If conditions are right and the bubble collapses onto (or upward into from beneath) the ship's hull, the damage to the ship can be extremely serious; the collapsing bubble forms a high-energy jet similar to a shaped charge that can break a metre-wide hole straight through the ship, flooding one or more compartments, and is capable of breaking smaller ships apart. The crew in the areas hit by the pillar are usually killed instantly. Other damage is usually limited.
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  2. But what if two ships are sailing abeam at the same speed and, while taking the same amount of time to turn 180 degrees, the ship on the “inward” side of the turn describes a radius that is much larger than the other? Are these two ships not likely to collide?
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  3. 17:53 Having toured USS Constitution and preparing to celebrate the day we declared independence from the crown-kissing tea drinkers, I say “humbug and damnation” to HMS Spartan.
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