There are youtube videos of runaway anchors, where they lose the anchor and the chain. Heap big snafu when that happens. Each link of a carriers anchor chain weighs 365 pounds.
Spent three years under #3 cat water brake, on the 03 level.
The next-to-last shot of chain for the anchor is painted yellow; the last shot is red. SOP was to run if you saw yellow and the brake wasn’t engaged.