How to Tie a Running Bowline
The Running Bowline
The Running Bowline is a noose knot that combines a Bowline loop with a running loop configuration, creating a secure sliding noose that tightens around an object when tension is applied. It is commonly used in arboriculture, ranch work, boating, rescue operations, and general rope handling where a strong and reliable noose is required. Because the Bowline forms the fixed eye through which the standing part passes, the knot provides a smooth-running loop while maintaining the security associated with the Bowline.
Other Names: Running Bowling Knot, Sliding Bowline, Bowline Noose
Running Bowline Instructions
The Running Bowline is listed in The Ashley Book of Knots (ABOK #1117) and is recognized as one of the most practical noose knots for rope work. Its structure consists of a standard Bowline tied around the standing part of the rope, allowing the loop to slide and tighten under load. Unlike many other nooses, the Bowline component remains relatively easy to untie after use, even when the knot has been subjected to significant tension.
Key Considerations
Proper dressing of the Running Bowline is important to ensure the Bowline portion is correctly formed and the running loop operates smoothly. The collar and loop should be neatly arranged before tightening, and the knot should be inspected to verify that the standing part passes cleanly through the fixed eye. Careful dressing helps maintain efficient movement of the loop and improves the overall reliability of the loop knot.
Advantages & Disadvantages
One of the key advantages of the Running Bowline is its combination of security, strength, and ease of untying. It can be tied quickly, cinches effectively around objects, and performs well in a variety of rope materials and conditions. These qualities have made it particularly popular among arborists and other rope professionals who require a dependable noose that can be removed without excessive difficulty after loading.
ABOK #1117 - Running Bowline Knot
ABOK Numbers: Abok #1117, Abok #2071
The Running Bowline appears at least twice in Ashley’s Book of Knots. The entries are as follows:
Abok #1117,
The Running Bowline Knot is referred to by name, in A Four Years’ Voyage by G. Roberts (1726), as the “Running Bowling Knot.” It is the knot universally used at sea when a Noose is called for. According to an old nautical authority it “is used for throwing over anything out of reach, or anything under water.” Any lumber that has dropped overboard or any rigging that has gone adrift is recovered by its means.
Abok #2071,
The Running Bowline is the Noose that is customarily put around any parcel or bale that is made up at sea. Ashore a Loop Knot (1009) is more apt to be used in forming the Noose. A Noose is formed by reeving the end through any of the five loops that have just been shown. But a much quicker way to form a Noose is to lay a bight from the standing part across the loop and pull the bight through until it is the size required.
Disclaimer
The information on this website is provided for educational and informational purposes only. While every effort has been made to ensure accuracy, knot strength, security, and suitability can vary depending on rope type, condition, load, environmental factors, and how the knot is tied. Users are responsible for inspecting their equipment and verifying that a knot is appropriate for their intended use. Do not rely solely on the information provided here for activities involving personal safety, life support, climbing, rescue operations, heavy lifting, or other high-risk applications.
SCB Media Group assumes no responsibility or liability for any injury, loss, damage, or consequences resulting from the use or misuse of the knots and techniques described. Always seek professional instruction and follow applicable safety standards where appropriate.