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Bowline

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The bowline ( / ˈ b oʊ l ɪ n / or / ˈ b oʊ l aɪ n / ) is an ancient and simple knot used to form a fixed loop at the end of a rope. It has the virtues of being both easy to tie and untie; most notably, it is easy to untie after being subjected to a load. The bowline is sometimes referred to as king of the knots because of its importance. Along with the sheet bend and the clove hitch , the bowline is often considered one of the most essential knots.

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21-459: The common bowline shares some structural similarity with the sheet bend. Virtually all end-to-end joining knots (i.e., bends ) have a corresponding loop knot. Although the bowline is generally considered a reliable knot, its main deficiencies are a tendency to work loose when not under load (or under cyclic loading), to slip when pulled sideways, and the bight portion of the knot to capsize in certain circumstances. To address these shortcomings,

42-428: A bend. When used as a bend rather than a binding knot , the reef knot will capsize under sufficient tension. For this reason, the reef knot is insecure as a bend and as such is not listed as one. Employed as a binding knot, to reef and furl sails or to tie up parcels, [the reef knot] is invaluable. But employed as a bend [...], the reef knot is probably responsible for more deaths and injuries than have been caused by

63-412: A number of more secure variations of the bowline have been developed for use in safety-critical applications, or by securing the knot with an overhand knot backup. The bowline's name has an earlier meaning, dating to the age of sail . On a square-rigged ship , a bowline (sometimes spelled as two words, bow line ) is a rope that holds the edge of a square sail towards the bow of the ship and into

84-415: A sideways bowline, which is also a stable knot. As noted above, the simplicity of the bowline makes it a good knot for a general purpose end-of-line loop. However, in situations that require additional security, several variants have been developed: The round turn bowline is made by the addition of an extra turn in the formation of the "rabbit hole" before the working end is threaded through. Similar to

105-405: A square or rectangular post, rather than round. The clove hitch is also commonly used in pioneering to start and finish a lashing such as the traditional square lashing, tripod lashing, round lashing and shear lashing. The clove hitch is tied by first passing the running end of the rope around the spar and back over itself to form an X. The running end then passes around the spar again, under

126-592: Is a bowline where the running end goes around the loop-start rather than the main part and has a more symmetric triangular shaped knot. A slipped version of the Cossack knot is called Kalmyk loop . Bend knot A bend is a type of knot used to join two lengths of rope. Bends are used in a variety of situations, including climbing , sailing , and securing loads . They are classified based on their ability to be tightened or released , their resistance to slipping , and their strength . Some common types include

147-409: Is drawn tight. The Yosemite bowline is often used in climbing . The cowboy bowline (also called Dutch bowline), French bowline , and Portuguese bowline are variations of the bowline, each of which makes one loop. (Names of knots are mostly traditional and may not reflect their origins.) A running bowline can be used to make a noose which draws tighter as tension is placed on the standing part of

168-425: Is most effectively used to secure a middle section of rope to an object it crosses over, such as a line on a fencepost. It can also be used as an ordinary hitch , or as a binding knot, but it is not particularly secure in either application. It is considered one of the most important knots, alongside the bowline and the sheet bend . Although the name clove hitch is given by Falconer in his Dictionary of 1769,

189-451: Is particularly useful in such a situation because it is possible to tie with one hand. As such, a person needing rescue could hold onto the rope with one hand and use the other to tie the knot around their waist before being pulled to safety by rescuers. The Federal Aviation Administration recommends the bowline knot for tying down light aircraft . A rope with a bowline retains approximately 2/3 of its strength, with variances depending upon

210-406: The sheet bend , the double fisherman's knot , and the double figure-eight bend . Bends allow two ropes to be securely joined together, enabling the combined ropes to support weight or transmit force. It is important to choose the appropriate bend for the specific task at hand, as some may be stronger or more secure than others. The common reef knot (square knot) is sometimes mistakenly tied as

231-470: The big tree; down through the rabbit hole and off goes he." A single handed method can also be used; see this animation . There is a potential with beginners to wrongly tie the bowline. This faulty knot stems from an incorrect first step while tying the rabbit hole. If the loop is made backwards so that the working end of the rope is on the bottom, the resulting knot will be the Eskimo bowline , looking like

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252-522: The bridles into the cringles of the sails, they will break, or the sail split before it will slip." Another possible finding was discovered on the rigging of the Ancient Egyptian Pharaoh Khufu's solar ship during an excavation in 1954. The bowline is used to make a loop at one end of a line. It is tied with the rope's working end also known as the "tail" or "end". The loop may pass around or through an object during

273-407: The double bowline, the water bowline is made by forming a clove hitch before the working end is threaded through. It is said to be stronger and also more resistant to jamming than the other variations, especially when wet. In this variation the knot's working end is taken round the loop in the direction of the original round turn, then threaded back up through the original round turn before the knot

294-420: The failure of all other knots combined. Double fisherman's knot Triple fisherman's knot A variation of the fisherman's knot consisting of two double overhands . A variation of the fisherman's knot consisting of triple overhands. [REDACTED] [REDACTED] Clove hitch The clove hitch is an ancient type of knot , made of two successive single hitches tied around an object. It

315-424: The intersection of the last two turns, and both ends are pulled tight. There are several methods of tying it using both hands or one hand. When a turn around an object is made and a clove hitch is tied to the rope's own standing part , it produces either a buntline hitch or two half-hitches , depending on whether the turns of the clove hitch progress toward or away from the hitched object. Two-half hitches

336-444: The knot is much older, having been tied in ratlines at least as early as the first quarter of the sixteenth century. This is shown in early sculpture and paintings. A round turn is taken with the ratline and then a hitch is added below. The forward end is always the first to be made fast. This knot is particularly useful where the length of the running end needs to be adjustable, since feeding in rope from either direction will loosen

357-414: The knot to be tightened at a new position. With certain types of cord, the clove hitch can slip when loaded. In modern climbing rope, the clove hitch will slip to a point, and then stop slipping. When tied around a carabiner , the load should pull on the end closest to its spine. With smaller diameter cords, after being heavily weighted it may become difficult to untie. It is also unreliable when used on

378-413: The making of the knot. The knot tightens when loaded at (pulled by) the standing part of the line. The bowline is commonly used in sailing small craft, for example to fasten a halyard to the head of a sail or to tie a jib sheet to a clew of a jib . The bowline is well known as a rescue knot for such purposes as rescuing people who might have fallen down a hole, or off a cliff onto a ledge. This knot

399-556: The nature of the rope, as in practice the exact strength depends on a variety of factors. In the United Kingdom, the knot is listed as part of the training objectives for the Qualified Firefighter Assessment. A mnemonic used to teach the tying of the bowline is to imagine the working end of the rope as a rabbit. This can be taught to children with the rhyme: "Up through the rabbit hole, round

420-454: The rope. The Birmingham bowline has two loops; the working part is passed twice around the standing part (the "rabbit" makes two trips out of the hole and around the tree). Other two-loop bowline knots include the Spanish bowline and the bowline on the bight ; these can be tied in the middle of a rope without access to the ends. A triple bowline is used to make three loops. A Cossack knot

441-489: The wind, preventing it from being taken aback . A ship is said to be on a "taut bowline" when these lines are made as taut as possible in order to sail close-hauled to the wind. The bowline knot is thought to have been first mentioned in John Smith's 1627 work A Sea Grammar under the name Boling knot . Smith considered the knot to be strong and secure, saying, "The Boling knot is also so firmly made and fastened by

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