Custom Boat Manual

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Figure-eight stopper

Stopper · easy · also called Figure-eight knot, Figure-of-eight knot

Diagram of a figure-eight stopper, loosely tied
Diagram of a figure-eight stopper, loosely tied. Lucasbosch, CC BY-SA 3.0, via Wikimedia Commons
Photo of a figure-eight stopper loose as tied (top) and pulled tight (bottom)
Photo of a figure-eight stopper loose as tied (top) and pulled tight (bottom). Just plain Bill, CC BY-SA 3.0, via Wikimedia Commons

Used for

How to tie it

  1. Near the end of the line, cross the end over the standing part to make a loop.
  2. Take the end around behind the standing part.
  3. Bring it back to the front and pass it through the first loop from the front.
  4. Pull the end and the standing part to tighten.

Check it: Before you pull it tight it clearly looks like the number 8; tightened, it is a compact knot noticeably bigger than a plain overhand knot. If it looks like a plain overhand, the end went the wrong way; retie it.

Cautions
  • Make sure it really is a figure-eight: a plain overhand knot jams much harder and may have to be cut out.
  • Under very heavy strain even a figure-eight can jam, though it is easier to undo than an overhand.

To untie: Push the two loops of the 8 apart to loosen it; bend it back and forth if it has been loaded.

Sources (6)

higherlogicdownload.s3.amazonaws.com · boatingcompass.org · globalsecurity.org · marines.mil · en.wikipedia.org · americansailing.com

General guidance for recreational boaters, researched from the sources listed and written in our own words. Your equipment manuals, local knowledge, the Navigation Rules and a qualified instructor come first.