Usage
The Jury Mast Knot, also known as the Masthead Knot, is both a functional and decorative knot traditionally used on sailboats and tall ships to rig a temporary or replacement mast—hence the term "jury mast." The knot forms a series of loops at the top of the mast, allowing multiple stays and shrouds (support ropes) to be securely attached. To prevent the knot from slipping down, small blocks of wood were often affixed to the mast, or a groove was cut into it. By distributing the load evenly, it helps stabilize the mast, ensuring that the makeshift rigging can withstand the stresses of sailing. Today, the Jury Mast Knot is commonly used in decorative rope work and can serve as the basis for a woven mat.
History
The Jury Mast Knot was most commonly used during the Age of Sail, a period that spanned roughly from the 16th to the mid-19th century (about 1500 to 1850). It would have been particularly useful on tall ships during this time when temporary masts needed to be rigged in the event of damage at sea. Although it is not commonly used today in modern rigging, the Jury Mast Knot remains a classic example of a knot that serves a critical function in emergency situations on ships.
Also known as
- Masthead Knot
- Pitcher Knot
ABOK
Structure
Despite its visual complexity, the Jury Mast Knot is simple to tie and even easier to untie. Pulling on each end of the rope reveals the Jury Mast Knot to be an elaborate
slip knot!
