Sailrite is known for their high quality, heavy duty sewing machines found on many cruising boats. In this article they talk about jacklines and how to create your own system.
As they note, a study by the U.S. Coast Guard found that from 2000-2011, drowning accounted for 73% of sailing deaths. It’s a senseless tragedy when a sailor goes overboard because they aren’t properly tethered, or when the tether is too long and they get dragged alongside the boat and drown. Read more.