RE: Titanic dives, there’s no way there’s an anchor that long, so how does the ship stay in place over the wreckage without drifting with the current?
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They won’t stay stationary unless using a “new” technology called Dynamic Positioning.
Dynamic Positioning is a computer-controlled system that automatically maintains a ship’s position by using its own propellers and thrusters.
It works by taking input data from the vessel’s position reference sensors, wind sensors, gyrocompasses, and motion sensors.
They mostly don’t. There is no reason to stay stationary in the ocean. If ships want to stop for whatever reason, they might just shut down and drift, or steam at minimum speed against the current/wind.
There is also something called dynamic positioning. It is a system that helps ships maneuver and hold position. Ships that do underwater operations, cable laying, etc, might use dynamic position to ensure they remain in their exact positions.
Just imagine a ship doing the deep ocean version of the moonwalk. Smooth moves, no anchor required!
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