Do we need to get James Cameron and associates to design a DitchWitch that can operate at 2 miles down? How deep can ship anchors go?
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https://en.wikipedia.org/wiki/Cable_layer
> Cable ships also use “plows” that are suspended under the vessel. These plows use jets of high-pressure water to bury cable three feet (0.91 m) under the sea floor, which prevents fishing vessels from snagging cables as thrall their nets.