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Official California boating safety course

Chapter 2: Before You Get Underway
Tying Nautical Knots

All vessel operators routinely use lines or ropes to secure the vessel to a dock or attach to a mooring post or buoy. Lines can be made of either natural or synthetic material. Nylon ropes are good for use with propeller-driven vessels since they will sink, not float. However, synthetic ropes have a smoother and more slippery surface, making it easier for a knot to come undone. Regardless of the type(s) of lines or ropes you use, make sure they are well-maintained. Store ropes dry, clean, coiled and free of kinks.

Tying knots is an important skill for vessel operators that improves with practice. Knowing how to securely tie knots will not only keep your vessel and equipment secure when tying off to piers and mooring buoys, but may also be an emergency procedure if you are forced to anchor in open water during bad weather.

Descriptions of Types of Knots Diagrams of Knots

Figure Eight Bend: The figure-eight knot has several uses, including connecting two ropes to make a longer line or making a "stopper" knot in a single line in order to prevent the line from slipping through a hole or a gap in a block or a cleat.

Figure Eight Bend knot

Bowline Knot: The bowline is a multi-purpose knot that is essential for vessel operators to know. Forming the knot creates a fixed loop on the end of the rope or line—a loop which can be used for hitching, mooring or lifting.

Bowline knot

Anchor Bend Knot: A type of hitching knot, the anchor bend is used to secure a rope to an anchor or a ring. If additional security is needed, a half hitch can be tied at the end.

Anchor Bend knot

Cleating Hitch: Used to attach a line to a cleat on a dock, the cleating hitch is formed by wrapping the line around the base of the cleat, then forming one or more figure eights around the cleat. The knot is secured with a half hitch.

Cleating Hitch knot

Clove Hitch: The clove hitch is handy for temporary fastening, such as when tying up to a piling. It's particularly useful because—with experience—it can be tied with only one hand. For extra fastening power or for longer periods of time, add two half hitches after tying the clove hitch.

Clove Hitch knot

Round Turn and Two Half Hitches: Handy for tying down a bulky load or tying a vessel to a mooring post, the round turn and two half hitches is versatile. It is a secure knot which does not jam and is easy to undo.

Round Turn and Two Half Hitches knot

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