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resists abrasion from coral, sharp rocks, or shellfish beds, whereas a rope warp is susceptible to abrasion and can fail in a short time when stretched against an abrasive surface. The weight of the chain also helps keep the direction of pull on the anchor closer to horizontal, which improves holding, and absorbs part of snubbing loads. Where weight is not an issue, a heavier chain provides better holding by forming a catenary curve through the water and resting as much of its length on the bottom as would not be lifted by tension of the mooring load. Any changes to the tension are accommodated by additional chain being lifted or settling on the bottom, and this absorbs shock loads until the chain is straight, at which point the full load is taken by the anchor. Additional dissipation of shock loads can be achieved by fitting a snubber between the chain and a bollard or cleat on deck. This also reduces shock loads on the deck fittings, and the vessel usually lies more comfortably and quietly.
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86:
635:. It uses a stock at the crown to which two large flat triangular flukes are attached. The stock is hinged so the flukes can orient toward the bottom (and on some designs may be adjusted for an optimal angle depending on the bottom type). Tripping palms at the crown act to tip the flukes into the seabed. The design is a burying variety, and once well set can develop high resistance. Its lightweight and compact flat design make it easy to retrieve and relatively easy to store; some anchor rollers and hawsepipes can accommodate a fluke-style anchor.
774:: A recent sibling to the Rocna, this anchor performs similarly but does not have a roll-bar. Instead the Vulcan has patented design features such as the "V-bulb" and the "Roll Palm" that allow it to dig in deeply. The Vulcan was designed primarily for sailors who had difficulties accommodating the roll-bar Rocna on their bow. Peter Smith (originator of the Rocna) designed it specifically for larger powerboats. Both Vulcans and Rocnas are available in galvanised steel, or in stainless steel. The Vulcan is similar in appearance to the Spade anchor.
876:
526:
1142:
763:
537:. It has a benefit in that, no matter how it reaches the bottom, one or more tines are aimed to set. In coral, or rock, it is often able to set quickly by hooking into the structure, but may be more difficult to retrieve. A grapnel is often quite light, and may have additional uses as a tool to recover gear lost overboard. Its weight also makes it relatively easy to move and carry, however its shape is generally not compact and it may be awkward to stow unless a collapsing model is used.
1243:, in this technique two anchors are deployed in line with each other, on the same rode. With the foremost anchor reducing the load on the aft-most, this technique can develop great holding power and may be appropriate in "ultimate storm" circumstances. It does not limit swinging range, and might not be suitable in some circumstances. There are complications, and the technique requires careful preparation and a level of skill and experience above that required for a single anchor.
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also allows for much more drifting about due to the longer amount of cable paid out. Anchoring with sufficient scope and/or heavy chain rode brings the direction of strain close to parallel with the seabed. This is particularly important for light, modern anchors designed to bury in the bottom, where scopes of 5:1 to 7:1 are common, whereas heavy anchors and moorings can use a scope of 3:1, or less. Some modern anchors, such as the Ultra holds with a scope of 3:1; but, unless the
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while drifting back, a second anchor is set approximately a half-scope away from the first on a line perpendicular to the wind. After this second anchor is set, the scope on the first is taken up until the vessel is lying between the two anchors and the load is taken equally on each cable. This moor also to some degree limits the range of a vessel's swing to a narrower oval. Care should be taken that other vessels do not swing down on the boat due to the limited swing range.
750:: This is claimed to be a fast setting anchor with high holding power. It is designed as an all round anchor capable of setting even in challenging bottoms such as hard sand/clay bottoms and grass. The shank is made out of a high tensile steel capable of withstanding high loads. It is similar in design to the Rocna but has a larger and wider roll-bar that reduces the risk of fouling and increases the angle of the fluke that results in improved penetration in some bottoms.
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increase this if it becomes buried. Consequently, deadweight anchors are used where mushroom anchors are unsuitable, for example in rock, gravel or coarse sand. An advantage of a deadweight anchor over a mushroom is that if it does drag, it continues to provide its original holding force. The disadvantage of using deadweight anchors in conditions where a mushroom anchor could be used is that it needs to be around ten times the weight of the equivalent mushroom anchor.
54:
489:
299:
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463:, the Trotman Anchor, introduced a pivot at the centre of the crown where the arms join the shank, allowing the "idle" upper arm to fold against the shank. When deployed the lower arm may fold against the shank tilting the tip of the fluke upwards, so each fluke has a tripping palm at its base, to hook on the bottom as the folded arm drags along the seabed, which unfolds the downward oriented arm until the tip of the fluke can engage the bottom.
65:
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408:
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718:: This is a French design that has proven successful since 1996. It features a demountable shank (hollow in some instances) and the choice of galvanized steel, stainless steel, or aluminium construction, which means a lighter and more easily stowable anchor. The geometry also makes this anchor self stowing on a single roller. The Spade anchor is the anchor of choice for Rubicon 3, one of Europe's largest adventure sailing companies
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707:
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105:
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anchors", have been adopted on smaller boats (partly because they stow easily on a bow roller) but they are most effective in larger sizes. Claw anchors are quite popular on charter fleets as they have a high chance to set on the first try in many bottoms. They have the reputation of not breaking out with tide or wind changes, instead slowly turning in the bottom to align with the force.
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807:: Consists of a blunt heavy weight, usually cast iron or cast lead, that sinks into the mud and resist lateral movement. It is suitable only for soft silt bottoms and in mild conditions. Sizes range between 5 and 20 kg for small craft. Various designs exist and many are home produced from lead or improvised with heavy objects. This is a commonly used method on the
1044:(terylene) is stronger but less elastic than nylon. Both materials sink, so they avoid fouling other craft in crowded anchorages and do not absorb much water. Neither breaks down quickly in sunlight. Elasticity helps absorb shock loading, but causes faster abrasive wear when the rope stretches over an abrasive surface, like a coral bottom or a poorly designed chock.
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breaking out. For example, if the water is 8 metres (26 ft) deep, and the anchor roller is 1 m (3 ft) above the water, then the 'depth' is 9 meters (~30 feet). The amount of rode to let out in moderate conditions is thus 36 meters (120 feet). (For this reason, it is important to have a reliable and accurate method of measuring the depth of water.)
388:. Pre-European Māori waka (canoes) used one or more hollowed stones, tied with flax ropes, as anchors. Many modern moorings still rely on a large rock as the primary element of their design. However, using pure weight to resist the forces of a storm works well only as a permanent mooring; a large enough rock would be nearly impossible to move to a new location.
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may be fouled with obstacles. An anchorage location may be chosen for its holding ground. In poor holding ground, only the weight of an anchor and chain matters; in good holding ground, it is able to dig in, and the holding power can be significantly higher. The word "anchor" is sometimes used as
British slang for the brakes on a car.
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actions that are normally transmitted to the anchor and can cause it to dislodge and drag. In light conditions, a kellet reduces the swing of the vessel considerably. In heavier conditions these effects disappear as the rode becomes straightened and the weight ineffective. Known as an "anchor chum weight" or "angel" in the UK.
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as possible. This will make it unlikely for the anchor to break out of the bottom and drag, if it was properly embedded in the seabed to begin with. When deploying chain, a large enough scope leads to a load that is entirely horizontal, whilst an anchor rode made only of rope will never achieve a strictly horizontal pull.
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is a linear function. As a consequence, in deep water the scope needed will be less, whilst in very shallow water the scope must be chosen much larger to achieve the same pulling angle at the anchor shank. For this reason, the
British Admiralty does not use a linear scope formula, but a square root formula instead.
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the desired scope, e.g. 8:1 if the eventual scope should be 4:1, 10:1 if the eventual scope should be 5:1, etc.) to lower a stern anchor. By taking up on the bow cable the stern anchor can be set. After both anchors are set, tension is taken up on both cables to limit the swing or to align the vessel.
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Using two anchors set approximately 45° apart, or wider angles up to 90°, from the bow is a strong mooring for facing into strong winds. To set anchors in this way, first one anchor is set in the normal fashion. Then, taking in on the first cable as the boat is motored into the wind and letting slack
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Once the desired scope is laid out, the vessel should be gently forced astern, usually using the auxiliary motor but possibly by backing a sail. A hand on the anchor line may telegraph a series of jerks and jolts, indicating the anchor is dragging, or a smooth tension indicative of digging in. As the
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Charts are vital to good anchoring. Knowing the location of potential dangers, as well as being useful in estimating the effects of weather and tide in the anchorage, is essential in choosing a good place to drop the hook. One can get by without referring to charts, but they are an important tool and
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There is a need in the oil-and-gas industry to resist large anchoring forces when laying pipelines and for drilling vessels. These anchors are installed and removed using a support tug and pennant/pendant wire. Some examples are the Stevin range supplied by
Vrijhof Ankers. Large plate anchors such
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The Delta anchor was derived from the CQR. It was patented by Philip McCarron, James
Stewart, and Gordon Lyall of British marine manufacturer Simpson-Lawrence Ltd in 1992. It was designed as an advance over the anchors used for floating systems such as oil rigs. It retains the weighted tip of the CQR
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A plough anchor has a fundamental flaw: like its namesake, the agricultural plough, it digs in but then tends to break out back to the surface. Plough anchors sometimes have difficulty setting at all, and instead skip across the seafloor. By contrast, modern efficient anchors tend to be "scoop" types
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Since one fluke always protrudes up from the set anchor, there is a great tendency of the rode to foul the anchor as the vessel swings due to wind or current shifts. When this happens, the anchor may be pulled out of the bottom, and in some cases may need to be hauled up to be re-set. In the mid-19th
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The
Admiralty Anchor is an entirely independent reinvention of a classical design, as seen in one of the Nemi ship anchors. This basic design remained unchanged for centuries, with the most significant changes being to the overall proportions, and a move from stocks made of wood to iron stocks in the
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for attaching the rode (the rope, chain, or cable connecting the ship and the anchor). At the other end of the shank there are two arms, carrying the flukes, while the stock is mounted to the shackle end, at ninety degrees to the arms. When the anchor lands on the bottom, it generally falls over with
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Plough anchors stow conveniently in a roller at the bow, and have been popular with cruising sailors and private boaters. Ploughs can be moderately good in all types of seafloor, though not exceptional in any. Contrary to popular belief, the CQR's hinged shank is not to allow the anchor to turn with
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Holding ground is the area of sea floor that holds an anchor, and thus the attached ship or boat. Different types of anchor are designed to hold in different types of holding ground. Some bottom materials hold better than others; for instance, hard sand holds well, shell holds poorly. Holding ground
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is used to sharply limit the swing range of a vessel, but allows it to swing to a current. One of the primary characteristics of this technique is the use of a swivel as follows: the first anchor is set normally, and the vessel drops back to the limit of anchor cable. A second anchor is attached to
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technique, an anchor is set off each the bow and the stern, which can severely limit a vessel's swing range and also align it to steady wind, current or wave conditions. One method of accomplishing this moor is to set a bow anchor normally, then drop back to the limit of the bow cable (or to double
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The location to drop the anchor should be approached from down wind or down current, whichever is stronger. As the chosen spot is approached, the vessel should be stopped or even beginning to drift back. The anchor should initially be lowered quickly but under control until it is on the bottom (see
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The basic anchoring consists of determining the location, dropping the anchor, laying out the scope, setting the hook, and assessing where the vessel ends up. The ship seeks a location that is sufficiently protected; has suitable holding ground, enough depth at low tide and enough room for the boat
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A major disadvantage of the concept of scope is that it does not take into account the fact that a chain is forming a catenary when hanging between two points (i.e., bow roller and the point where the chain hits the seabed), and thus is a non-linear curve (in fact, a cosh() function), whereas scope
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Scope is the ratio of length of the rode to the depth of the water measured from the highest point (usually the anchor roller or bow chock) to the seabed, making allowance for the highest expected tide. When making this ratio large enough, one can ensure that the pull on the anchor is as horizontal
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The anchor rode (or "cable" or "warp") that connects the anchor to the vessel is usually made up of chain, rope, or a combination of those. Large ships use only chain rode. Smaller craft might use a rope/chain combination or an all chain rode. All rodes should have some chain; chain is heavy but it
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When it is necessary to moor a ship or floating platform with precise positioning and alignment, such as when drilling the seabed, for some types of salvage work, and for some types of diving operation, several anchors are set in a pattern which allows the vessel to be positioned by shortening and
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A deadweight is an anchor that relies solely on being a heavy weight. It is usually just a large block of concrete or stone at the end of the chain. Its holding power is defined by its weight underwater (i.e., taking its buoyancy into account) regardless of the type of seabed, although suction can
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drilled into the seabed, or by barbed metal beams pounded in (or even driven in with explosives) like pilings, or by a variety of other non-mass means of getting a grip on the bottom. One method of building a mooring is to use three or more conventional anchors laid out with short lengths of chain
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Alain
Poiraud of France introduced the scoop type anchor in 1996. Similar in design to the Bügel anchor, Poiraud's design features a concave fluke shaped like the blade of a shovel, with a shank attached parallel to the fluke, and the load applied toward the digging end. It is designed to dig into
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Since all anchors that embed themselves in the bottom require the strain to be along the seabed, anchors can be broken out of the bottom by shortening the rope until the vessel is directly above the anchor; at this point the anchor chain is "up and down", in naval parlance. If necessary, motoring
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Generally, the rode should be between 5 and 10 times the depth to the seabed, giving a scope of 5:1 or 10:1; the larger the number, the shallower the angle is between the cable and the seafloor, and the less upwards force is acting on the anchor. A 10:1 scope gives the greatest holding power, but
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All anchors should have chain at least equal to the boat's length. Some skippers prefer an all chain warp for greater security on coral or sharp edged rock bottoms. The chain should be shackled to the warp through a steel eye or spliced to the chain using a chain splice. The shackle pin should be
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A mushroom anchor normally sinks in the silt to the point where it has displaced its own weight in bottom material, thus greatly increasing its holding power. These anchors are suitable only for a silt or mud bottom, since they rely upon suction and cohesion of the bottom material, which rocky or
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Three time circumnavigator German Rolf
Kaczirek invented the Bügel Anker in the 1980s. Kaczirek wanted an anchor that was self-righting without necessitating a ballasted tip. Instead, he added a roll bar and switched out the plough share for a flat blade design. As none of the innovations of this
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Grapnels rarely have enough fluke area to develop much hold in sand, clay, or mud. It is not unknown for the anchor to foul on its own rode, or to foul the tines with refuse from the bottom, preventing it from digging in. On the other hand, it is quite possible for this anchor to find such a good
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Club hauling is an archaic technique. When a vessel is in a narrow channel or on a lee shore so that there is no room to tack the vessel in a conventional manner, an anchor attached to the lee quarter may be dropped from the lee bow. This is deployed when the vessel is head to wind and has lost
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Lowering a concentrated, heavy weight down the anchor line – rope or chain – directly in front of the bow to the seabed behaves like a heavy chain rode and lowers the angle of pull on the anchor. If the weight is suspended off the seabed it acts as a spring or shock absorber to dampen the sudden
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Auger anchors can be used to anchor permanent moorings, floating docks, fish farms, etc. These anchors, which have one or more slightly pitched self-drilling threads, must be screwed into the seabed with the use of a tool, so require access to the bottom, either at low tide or by use of a diver.
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in the 1970s. Bruce gained his early reputation from the production of large-scale commercial anchors for ships and fixed installations such as oil rigs. It was later scaled down for small boats, and copies of this popular design abound. The Bruce and its copies, known generically as "claw type
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because it can be dropped from a bow roller simply by paying out the rode, without manual assistance. This is an oft copied design with the
European Brake and Australian Sarca Excel being two of the more notable ones. Although it is a plough type anchor, it sets and holds reasonably well in hard
638:
A Danforth does not usually penetrate or hold in gravel or weeds. In boulders and coral it may hold by acting as a hook. If there is much current, or if the vessel is moving while dropping the anchor, it may "kite" or "skate" over the bottom due to the large fluke area acting as a sail or wing.
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In moderate conditions, the ratio of rode to water depth should be 4:1 – where there is sufficient swing-room, a greater scope is always better. In rougher conditions it should be up to twice this with the extra length giving more stretch and a smaller angle to the bottom to resist the anchor
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or hemp are still used in developing nations but absorb a lot of water, are relatively weak, and rot, although they do give good handling grip and are often relatively cheap. Ropes that have little or no elasticity are not suitable as anchor rodes. Elasticity is partly a function of the fibre
553:, this is essentially the same pattern as an admiralty anchor, albeit with small diamond-shaped flukes or palms. The novelty of the design lay in the means by which it could be broken down into three pieces for stowage. In use, it still presents all the issues of the admiralty pattern anchor.
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is significantly lower than admiralty pattern anchors, their ease of handling and stowage aboard large ships led to almost universal adoption. In contrast to the elaborate stowage procedures for earlier anchors, stockless anchors are simply hauled up until they rest with the shank inside the
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321:, or weight, or a combination of the two. The weight of the anchor chain can be more than that of the anchor and is critical to proper holding. Permanent moorings use large masses (commonly a block or slab of concrete) resting on the seabed. Semi-permanent mooring anchors (such as
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The
Fortress is an American aluminum alloy Danforth variant that can be disassembled for storage and it features an adjustable 32° and 45° shank/fluke angle to improve holding capability in common sea bottoms such as hard sand and soft mud. This anchor performed well in a 1989 US
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While there are numerous variations, stockless anchors consist of a set of heavy flukes connected by a pivot or ball and socket joint to a shank. Cast into the crown of the anchor is a set of tripping palms, projections that drag on the bottom, forcing the main flukes to dig in.
474:. The crown of the anchor is then hauled up with a heavy tackle until one fluke can be hooked over the rail. This is known as "catting and fishing" the anchor. Before dropping the anchor, the fishing process is reversed, and the anchor is dropped from the end of the cathead.
734:: This New Zealand spade design, available in galvanised or stainless steel, has been produced since 2004. It has a roll-bar (similar to that of the Bügel), a large spade-like fluke area, and a sharp toe for penetrating weed and grass. The Rocna sets quickly and holds well.
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direction changes rather than breaking out, but actually to prevent the shank's weight from disrupting the fluke's orientation while setting. The hinge can wear out and may trap a sailor's fingers. Some later plough anchors have a rigid shank, such as the Lewmar's "Delta".
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headway. As the vessel gathers sternway the strain on the cable pivots the vessel around what is now the weather quarter turning the vessel onto the other tack. The anchor is then normally cut away (the ship's momentum prevents recovery without aborting the maneuver).
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For ships, a kedge may be dropped while a ship is underway, or carried out in a suitable direction by a tender or ship's boat to enable the ship to be winched off if aground or swung into a particular heading, or even to be held steady against a tidal or other stream.
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anchor begins to dig in and resist backward force, the engine may be throttled up to get a thorough set. If the anchor continues to drag, or sets after having dragged too far, it should be retrieved and moved back to the desired position (or another location chosen.)
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Historically, it was of particular relevance to sailing warships that used them to outmaneuver opponents when the wind had dropped but might be used by any vessel in confined, shoal water to place it in a more desirable position, provided she had enough manpower.
842:, but needs to be lifted only occasionally, at most – for example, only if the vessel is to be towed into port for maintenance. An alternative to using an anchor under these circumstances, especially if the anchor need never be lifted at all, may be to use a
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anchor. It is used occasionally when it is necessary to limit the turning circle as the yacht swings when it is anchored, such as in a narrow river or a deep pool in an otherwise shallow area. Kedge anchors are sometimes used to recover vessels that have
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When using a rope rode, there is a simple way to estimate the scope: The ratio of bow height of the rode to length of rode above the water while lying back hard on the anchor is the same or less than the scope ratio. The basis for this is simple geometry
1048:("polyprop") is not suited to rodes because it floats and is much weaker than nylon, being barely stronger than natural fibres. Some grades of polypropylene break down in sunlight and become hard, weak, and unpleasant to handle. Natural fibres such as
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An anchor frequently appears on the flags and coats of arms of institutions involved with the sea, both naval and commercial, as well as of port cities and seacoast regions and provinces in various countries. There also exists in heraldry the
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517:. As new designs with greater holding-power-to-weight ratios were sought, a great variety of anchor designs have emerged. Many of these designs are still under patent, and other types are best known by their original trademarked names.
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coarse sand bottoms lack. The holding power of this anchor is at best about twice its weight until it becomes buried, when it can be as much as ten times its weight. They are available in sizes from about 5 kg up to several tons.
430:(probably 10th century) used a fluked anchor of this type, made of iron, which would have had a wooden stock mounted perpendicular to the shank and flukes to make the flukes contact the bottom at a suitable angle to hook or penetrate.
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Permanent anchors come in a wide range of types and have no standard form. A slab of rock with an iron staple in it to attach a chain to would serve the purpose, as would any dense object of appropriate weight (for instance, an
418:
was afterwards introduced for the construction of anchors, and an improvement was made by forming them with teeth, or "flukes", to fasten themselves into the bottom. This is the iconic anchor shape most familiar to non-sailors.
1433:, a stylized cross in the shape of an anchor. The symbol can be used to signify 'fresh start' or 'hope'. The New Testament refers to the Christian's hope as "an anchor of the soul". The Mariner's Cross is also referred to as
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slowly around the location of the anchor also helps dislodge it. Anchors are sometimes fitted with a trip line attached to the crown, by which they can be unhooked from rocks, coral, chain, or other underwater hazards.
758:: This is an innovative spade design that dispenses with a roll-bar. Made primarily of stainless steel, its main arm is hollow, while the fluke tip has lead within it. It is similar in appearance to the Spade anchor.
702:: This German-designed bow anchor has a sharp tip for penetrating weed, and features a roll-bar that allows the correct setting attitude to be achieved without the need for extra weight to be inserted into the tip.
1024:, can be used for kedging or warping in addition to temporary mooring and restraining stern movement in tidal conditions or in waters where vessel movement needs to be restricted, such as rivers and channels.
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The vessel now swings in the middle of two anchors, which is acceptable in strong reversing currents, but a wind perpendicular to the current may break out the anchors, as they are not aligned for this load.
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to the rode. There is a school of thought that says these should not be connected to the anchor itself, but should be somewhere in the chain. However, most skippers connect the swivel directly to the anchor.
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but has a much higher fluke area to weight ratio than its predecessor. The designers also eliminated the sometimes troublesome hinge. It is a plough anchor with a rigid, arched shank. It is described as
794:. It has a divided concave large area fluke arrangement and a shank in high tensile steel. A roll bar similar to the Rocna gives fast setting and a holding power of about 40 times anchor weight.
325:) and large ship's anchors derive a significant portion of their holding power from their weight, while also hooking or embedding in the bottom. Modern anchors for smaller vessels have metal
678:
Bruce anchors can have difficulty penetrating weedy bottoms and grass. They offer a fairly low holding-power-to-weight ratio and generally have to be oversized to compete with newer types.
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Originally designed as a lightweight anchor for seaplanes, this design consists of two plough-like blades mounted to a shank, with a folding stock crossing through the crown of the anchor.
399:, anchors were formed of stone, and Athenaeus states that they were also sometimes made of wood. Such anchors held the vessel merely by their weight and by their friction along the bottom.
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A couple of online calculators exist to work out the amount of chain and rope needed to achieve a (possibly nearly) horizontal pull at the anchor shank, and the associated anchor load.
917:
It is shaped like an inverted mushroom, the head becoming buried in the silt. A counterweight is often provided at the other end of the shank to lay it down before it becomes buried.
173:, and are rarely moved; a specialist service is normally needed to move or maintain them. Vessels carry one or more temporary anchors, which may be of different designs and weights.
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the bottom like a shovel, and dig deeper as more pressure is applied. The common challenge with all the scoop type anchors is that they set so well, they can be difficult to weigh.
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Weight for weight, augers have a higher holding than other permanent designs, and so can be cheap and relatively easily installed, although difficult to set in extremely soft mud.
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securely wired or moused. Either galvanized or stainless steel is suitable for eyes and shackles, galvanised steel being the stronger of the two. Some skippers prefer to add a
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century, numerous modifications were attempted to alleviate these problems, as well as improve holding power, including one-armed mooring anchors. The most successful of these
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the arms parallel to the seabed. As a strain comes onto the rope, the stock digs into the bottom, canting the anchor until one of the flukes catches and digs into the bottom.
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In yachts, a kedge anchor is an anchor carried in addition to the main, or bower anchors, and usually stowed aft. Every yacht should carry at least two anchors – the main or
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817:: This is a unique design featuring three flukes instead of the usual two. It has performed well in tests by independent sources such as American boating magazine
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1934:
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Colored plastic inserts on a modern anchor chain show the operator how much chain has been paid out. This knowledge is crucial in all anchoring methods.
993:), the method of attaching the two together, the method of attaching the cable to the ship, charts, and a method of learning the depth of the water.
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The stockless anchor, patented in
England in 1821, represented the first significant departure in anchor design in centuries. Although their holding-
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the end of the anchor cable, and is dropped and set. A swivel is attached to the middle of the anchor cable, and the vessel connected to that.
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lengthening the scope of the anchors, and adjusting the tension on the rodes. The anchors are usually laid in prearranged positions by an
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1083:): The ratio between two sides of a triangle stays the same regardless of the size of the triangle as long as the angles do not change.
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1172:). The vessel should continue to drift back, and the cable should be veered out under control (slowly) so it is relatively straight.
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2028:
Witherell, P.W.: ANCHOR TEST REPORT for NINE MOVABLE-FLUKE ANCHORS (31 pounds to 200 pounds) NAVSEA Rpt. No. 835-6269039, June 1989
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in the 1970s is a Danforth variant designed to give increased holding through its use of rounded flukes setting at a 30° angle.
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Thomas Brunton invented and patented in 1813 studded-link marine chain cable, which replaced hempen cables and is still in use.
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The Admiralty Pattern anchor, or simply "Admiralty", also known as a "Fisherman", consists of a central shank with a ring or
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attached to a swivel, so no matter which direction the vessel moves, one or more anchors are aligned to resist the force.
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or a combination of rope and chain. The ratio of the length of rode to the water depth is known as the scope (see below).
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654:(NAVSEA) test and in an August 2014 holding power test that was conducted in the soft mud bottoms of the Chesapeake Bay.
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Until the mid-20th century, anchors for smaller vessels were either scaled-down versions of admiralty anchors, or simple
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The ancient Greeks used baskets of stones, large sacks filled with sand, and wooden logs filled with lead. According to
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1263:, Russia. He is leaning on an anchor, symbolic of his contributions to modernizing and expanding Russia's navy (1860)
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Handling and storage of these anchors requires special equipment and procedures. Once the anchor is hauled up to the
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79:
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describes an anchor when it is hanging on the rope and is not resting on the bottom. This is linked to the term
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2880:
223:
2235:
442:
An Admiralty Pattern anchor; when deployed on the seafloor the stock forces one of its flukes into the bottom.
245:
180:
is a drag device, not in contact with the seabed, used to minimise drift of a vessel relative to the water. A
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1353:, meaning to lift the anchor from the sea bed, allowing the ship or boat to move. An anchor is described as
3397:
380:
Anchors come in a wide variety of shapes, types, and sizes for different conditions, functions and vessels.
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108:
Massive anchor chain for large ships. The weight of the chain is vital for proper holding of the anchor.
3311:
2621:
1437:, in reference to the way this saint was killed (being tied to an anchor and thrown from a boat into the
1330:
384:
The earliest anchors were probably rocks, and many rock anchors have been found dating from at least the
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533:
A traditional design, the grapnel is merely a shank (no stock) with four or more tines, also known as a
252:
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1626:
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The mushroom anchor is suitable where the seabed is composed of silt or fine sand. It was invented by
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1908:
1823:
1780:
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1513:
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These are used where the vessel is permanently or semi-permanently sited, for example in the case of
651:
2668:
2522:
Hinz, Earl R.; The Complete Book of Anchoring and Mooring, first ed., 1986, Cornell Maritime Press;
1651:
1179:
There are techniques of anchoring to limit the swing of a vessel if the anchorage has limited room:
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2410:
577:
Many manufacturers produce a plough-type anchor, so-named after its resemblance to an agricultural
550:
234:
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666:
The Bruce anchor was an evolutionary improvement in its day. It is most effective in larger sizes.
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2648:
219:
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31:
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1849:
1430:
590:
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45:
27:
Device used to secure a vessel to the bed of a body of water to prevent the craft from drifting
1970:
1028:
a part of good anchoring gear, and a skilled mariner would not choose to anchor without them.
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Anchors can either be temporary or permanent. Permanent anchors are used in the creation of a
3407:
2654:
2327:
1464:
1117:
497:
371:
589:, later rebranded as 'secure' by Lewmar), a 1933 design patented in the UK by mathematician
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911:
887:
392:
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before a storm in a following or overtaking sea, or when crossing a bar in a breaking sea.
8:
3224:
3030:
2990:
2434:
Safety in Small Craft. Ch 2. Royal NZ Coastguard Federation. Mike Scanlan. Auckland. 1994
1326:
972:
791:
470:, the ring end is hoisted up to the end of a timber projecting from the bow known as the
1877:
1000:
are the main anchors used by a vessel and normally carried at the bow of the vessel. A
85:
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1976:
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In 1887, the Delta Gamma Fraternity adopted the anchor as its badge to signify hope.
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1005:
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259:
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1996:
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American Richard Danforth invented the Danforth Anchor in the 1940s for use aboard
483:
57:
38:
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875:
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843:
838:. The anchor needs to hold the vessel in all weathers, including the most severe
3216:
1864:
Batchelor, G. K. (1986). "Geoffrey Ingram Taylor, 7 March 1886 – 27 June 1975".
1276:
is a technique for moving or turning a ship by using a relatively light anchor.
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Hence they can be difficult to install in deep water without special equipment.
525:
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2015:
1885:
1522: – Drag device used to stabilize a boat in heavy weather and reduce drift
501:
hawsepipes, and the flukes against the hull (or inside a recess in the hull).
3381:
3326:
2647:
2585:
General Principles of Working a Ship, from The New Practical Navigator (1814)
2313:
1972:
Handbook of Offshore Cruising: The Dream and Reality of Modern Ocean Cruising
1544:
1504:
1322:, and the moored vessel uses its own winches to adjust position and tension.
1146:
1141:
1045:
1040:
Being strong and elastic, nylon rope is the most suitable as an anchor rode.
859:
762:
632:
541:
hook that, without a trip line from the crown, it is impossible to retrieve.
185:
137:
129:
90:
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The elements of anchoring gear include the anchor, the cable (also called a
3266:
3080:
3010:
2904:
2827:; 3rd ed. New York, 1848.--6th ed. New York, 1852.--9th ed. New York, 1857.
1442:
2872:
2203:"An Inquiry into Anchor Angles: Comparing fluke angle and setting ability"
1798:
3155:
3130:
3025:
3020:
2995:
2915:
2683:
Pimbley's Dictionary of Heraldry: Together with an Illustrated Supplement
2605:
An overview of offshore oil and gas exploration and production activities
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53:
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2610:(Report). Department of Trade and Industry, UK. August 2001. p. 8.
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when it has been broken out of the bottom and is being hauled up to be
662:
427:
423:
385:
329:
that hook on to rocks on the bottom or bury themselves in soft seabed.
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121:
1539:
722:
627:
The Danforth is a light, versatile, highly popular fluke-style anchor.
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2920:
1438:
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1951:
1405:'s association with the sea symbolized by her holding a large anchor
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75:
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Practical Sailor: "Anchor Reset Tests", Belvoir Pubs, January 2001
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was being constructed. It was equipped with a 1.5-ton example.
578:
376:
318:
181:
133:
125:
2100:
Ginsberg-Klemmt, Erika & Achim, and Poiraud, Alain (2007)
1824:"How to Choose the Right Boat Anchor Types – Active Fisherman"
569:
3205:
3165:
2955:
2945:
2191:
Lowe, Colin: "Gear Test: Rocna Anchor", Boating NZ, July 2006
2079:
1854:
Bulletin of the Institute of Mathematics and Its Applications
1182:
863:
839:
790:: This is produced in Scotland and was invented by Professor
345:
161:
155:
141:
117:
104:
3351:
3341:
3150:
3075:
1498: – Automatic ship station- and heading-holding systems
835:
778:
415:
317:
Anchors achieve holding power either by "hooking" into the
94:
2622:"To deploy or not to deploy Trip Lines (aka Anchor Buoys)"
2540:"Major danger of anchoring a fishing boat from the stern?"
1968:
1116: with: explain the function of scope. You can help by
1091:
is crowded, a longer scope always reduces shock stresses.
1377:, whether or not the vessel is moving through the water.
738:
670:
This claw-shaped anchor was designed by Peter Bruce from
2744:
The Complete Book of Anchoring and Mooring, Rev. 2d ed.,
2730:
Sailing as a Second Language: An illustrated dictionary,
1441:
in 102). Anchored crosses are occasionally a feature of
37:"Anchoring" redirects here. For the cognitive bias, see
2329:
Safe Skipper: A practical guide to managing risk at sea
1911:, G. I. Taylor, "Anchor", issued 1934-09-25
1509:
Pages displaying short descriptions of redirect targets
1500:
Pages displaying short descriptions of redirect targets
1333:(CALM) used for loading and unloading liquid cargoes.
1997:"Patent EP0990584A1 – Marine anchor of the flat type"
1750:"Art in the Park – Iron Stock Trotman Anchor (DA 64)"
581:. All such anchors are copied from the original CQR (
184:
is a drag device used to slow or help steer a vessel
2800:
Cruising World's Guide to Seamanship: Hold me tight,
1507: – Nautical term meaning to entangle or entwine
44:"Boat anchor" redirects here. For the metaphor, see
422:This form has been used since antiquity. The Roman
226:. Unsourced material may be challenged and removed.
2566:Professional Recollections on Points of Seamanship
951:as the Stevmanta are used for permanent moorings.
3246:
2326:Jollands, Simon; Holmes, Rupert (12 March 2015).
426:of the 1st century AD used this form. The Viking
3379:
1952:"Delta® Anchors – Stainless steel | Lewmar"
1863:
1325:Similar arrangements are used for some types of
2774:; 1995 Pardey Books/Paradise Cay Publications;
2645:
1492: – Coins for British colonies in 1820/1822
898:, for use by an 82-ton converted fishing boat,
2814:The Kedge-anchor; Or, Young Sailors' Assistant
2325:
1735:Ladby: A Danish Ship-Grave from the Viking Age
3232:
2888:
2411:"To Swivel or to Twist, That is The Question"
1848:
1445:in which context they are referred to by the
2845:. Vol. II (9th ed.). pp. 3–8.
2802:1992 New York Times Sports/Leisure Magazines
2468:Admiralty Manual Of Seamanship, Vol 1, 1964.
1907:
1053:material and partly of the rope structure.
332:The vessel is attached to the anchor by the
2902:
1312:
687:anchor were patented, copies of it abound.
145:
3239:
3225:
2895:
2881:
2492:
2477:
1711:Johnstone, Paul and McGrail, Seán (1989).
1624:
1413:An anchor pictured in the coat of arms of
1183:Using an anchor weight, kellet or sentinel
798:
492:The action of a stockless anchor being set
365:
132:to prevent the craft from drifting due to
2746:1986, 1994, 2001 Cornell Maritime Press;
2507:
2354:"The Anchor Rode – Making the Connection"
2200:
286:Learn how and when to remove this message
2639:
1732:
1671:
1669:
1516: – Type of marine mooring component
1408:
1392:
1250:
1154:
1140:
966:
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874:
777:
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721:
705:
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568:
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487:
437:
406:
375:
305:
297:
103:
84:
63:
52:
2823:. New York, Taylor and Clement, 1841.--
2679:
2673:
1852:(1974). "The history of an invention".
1618:
1369:, which describes a vessel that is not
1136:
996:Vessels may carry a number of anchors:
657:
14:
3380:
2857:Anchor Tests: Soft Sand Over Hard Sand
2832:
2201:Nicholson, Darrell (13 January 2017).
1747:
1649:
1611:, Henry George Liddell, Robert Scott,
858:). Modern moorings may be anchored by
3220:
2876:
2716:Happy Hooking – the Art of Anchoring,
2332:. Bloomsbury Publishing. p. 74.
2140:
1969:Jim Howard; Charles J. Doane (2000).
1788:, 15th edn., 1992, Vol. 1, pp. 377–8.
1666:
1570:(18th ed.), Wiley, p. 271,
945:
681:
508:
2758:Cruising Under Sail, second edition,
2658:. New York: Robert Appleton Company.
1975:. Sheridan House, Inc. p. 312.
1940:from the original on 9 October 2022.
1772:
1695:"Understanding anchorages in Canada"
1639:from the original on 9 October 2022.
1563:
1397:A 1914 Russian poster depicting the
1234:
1100:
1016:quickly or in benign conditions. A
862:, which look and act like oversized
825:
564:
544:
224:adding citations to reliable sources
195:
2821:The Naval Apprentice's Kedge Anchor
1529:", United States Navy marching song
1388:
477:
433:
302:A stockless anchor being broken out
24:
2806:
2147:Rubicon 3 Training & Adventure
1336:
1020:, which is usually heavier than a
618:
556:
60:ship's anchor and chain on display
25:
3429:
2850:
2786:The Annapolis Book of Seamanship,
2718:2008, 2011, 2019 White Seahorse;
2215:
1737:. Viking Ship Museum. p. 52.
1662:from the original on 6 July 2014.
1012:, or more commonly on yachts for
954:
766:A Vulcan anchor, by Rocna Anchors
402:
351:
2680:Pimbley, Arthur Francis (1908).
2652:. In Herbermann, Charles (ed.).
2078:. 16 August 2019. Archived from
1928:"cqr-plow-anchor-us-patent-1934"
1538:
1217:
1200:
1104:
200:
2788:1983, 1989 Simon and Schuster;
2708:
2690:
2662:
2614:
2597:
2578:
2558:
2532:
2516:
2501:
2486:
2471:
2462:
2437:
2428:
2403:
2387:
2371:
2346:
2319:
2307:
2288:
2279:
2254:
2228:
2209:
2194:
2185:
2160:
2134:
2114:
2102:The Complete Anchoring Handbook
2094:
2064:
2049:
2031:
2022:
2007:
1989:
1962:
1944:
1920:
1900:
1842:
1816:
1791:
1781:The New Encyclopædia Britannica
1741:
1303:
971:Naval anchor incorporated into
879:Mushroom anchor (right) on the
604:
211:needs additional citations for
2760:1965 Oxford University Press;
2649:"The Anchor (as Symbol)"
1726:
1705:
1687:
1643:
1602:
1590:
1557:
1191:
1145:Anchor winch, or windlass, on
1031:
906:between 1807 and 1810 near to
642:The FOB HP anchor designed in
151:, which itself comes from the
116:is a device, normally made of
13:
1:
3247:Seamanship (seafaring) topics
2714:Blackwell, Alex & Daria;
2445:"A Simple Way to Check Scope"
1906:A US patent followed in 1934
1748:Conley, Rachel (2 May 2013).
1625:Idzikowski, Jerzy T. (2001).
1550:
1205:(Not to be mistaken with the
924:
322:
2122:Tout savoir sur le mouillage
1786:Encyclopædia Britannica Inc.
1652:"Selecting the Right Anchor"
1381:is also often confused with
1365:should not be confused with
1283:anchor and a second lighter
455:late 1830s and early 1840s.
162:
7:
3312:Ship-to-ship cargo transfer
2626:cruising.coastalboating.net
2449:cruising.coastalboating.net
2415:features.coastalboating.net
2358:cruising.coastalboating.net
2172:cruising.coastalboating.net
2168:"Modern Scoop-type Anchors"
2039:"The Fine Art of Anchoring"
1713:The sea-craft of prehistory
1650:Burden, Tom (28 May 2020).
1483:
1331:catenary anchor leg mooring
1004:is a light anchor used for
870:
549:Designed by yacht designer
344:). It can be made of rope,
191:
10:
3434:
2732:1988 Highmark Publishing;
2141:admin (12 December 2023).
1866:Journal of Fluid Mechanics
1677:"Seabed – where to anchor"
1246:
726:A galvanised Rocna Anchor
481:
369:
360:
156:
43:
36:
29:
3347:Man overboard rescue turn
3252:
2911:
2812:William N. Brady (1864).
2698:"Our Story – Delta Gamma"
2495:"Anchor Chain Calculator"
2104:, Ragged Mountain Press,
1886:10.1017/S0022112086001040
1567:Knights Modern Seamanship
1514:Offshore embedded anchors
652:Naval Sea Systems Command
2646:Maurice Hassett (1913).
2564:Liardet, Francis (1849)
2480:"Anchor Rode Calculator"
2262:"Performance Comparison"
1313:Multiple anchor patterns
1222:Similar to the above, a
1065:
933:
411:Anchor of the Ladby Ship
140:. The word derives from
3403:Sailing ship components
2936:Apparent wind indicator
2842:Encyclopædia Britannica
2833:Morley, Thomas (1878).
2770:Pardey, Lin and Larry;
2571:29 October 2010 at the
2510:"Tuning an Anchor Rode"
1733:Sørensen, Anne (2001).
1613:A Greek-English Lexicon
799:Other temporary anchors
366:Evolution of the anchor
32:Anchor (disambiguation)
2863:The Big Anchor Project
2590:20 August 2004 at the
2304:. INAMAR. acegroup.com
2143:"How to Anchor a Boat"
2120:Poiraud, Alain (2003)
1421:
1417:, the capital city of
1406:
1385:, which is incorrect.
1264:
1160:
1152:
986:
964:
902:, which was used as a
891:
783:
767:
743:
727:
711:
667:
628:
601:that dig ever deeper.
591:Geoffrey Ingram Taylor
574:
530:
493:
443:
412:
381:
314:
303:
146:
109:
101:
82:
61:
46:Boat anchor (metaphor)
3413:Watercraft components
2655:Catholic Encyclopedia
2575:, Discipline, &c.
2300:20 March 2012 at the
2124:, Loisirs Nautiques,
2058:U.S. patent 4,397,256
2016:U.S. patent 5,154,133
1909:US patent 1974933
1715:. London: Routledge.
1681:www.sailingissues.com
1599:, Oxford Dictionaries
1467:) is represented by:
1465:Miscellaneous Symbols
1412:
1401:of World War I, with
1396:
1254:
1158:
1144:
970:
962:
878:
781:
765:
741:
725:
709:
665:
626:
583:Coastal Quick Release
572:
551:L. Francis Herreshoff
528:
521:Grapnel anchor / drag
498:power-to-weight ratio
491:
441:
410:
379:
372:History of the anchor
309:
301:
107:
88:
67:
56:
3393:Nautical terminology
2222:Ultra Marine Anchors
2216:s.r.o, CloudSailor.
1627:"Anchoring practice"
1533:Anchorage (maritime)
1463:The Unicode anchor (
1327:single buoy moorings
1137:Anchoring techniques
658:Bruce or claw anchor
397:Stephen of Byzantium
220:improve this article
30:For other uses, see
3398:Sailboat components
2819:First published as
2784:Rousmaniere, John;
2772:The Capable Cruiser
2594:. psych.usyd.edu.au
2205:. Practical Sailor.
2082:on 20 November 2021
1878:1986JFM...173....1B
1435:St. Clement's Cross
587:Clyde Quick Release
573:A CQR plough anchor
120:, used to secure a
89:Memorial anchor in
3297:Naval architecture
2756:Hiscock, Eric C.;
1760:on 6 November 2020
1754:marinersmuseum.org
1564:Noel, J V (1989),
1422:
1407:
1265:
1161:
1153:
987:
965:
946:High-holding-types
892:
834:or channel marker
784:
768:
744:
728:
712:
682:Scoop type anchors
668:
629:
575:
531:
509:Small boat anchors
494:
444:
413:
393:Apollonius Rhodius
382:
315:
310:Holding ground in
304:
110:
102:
83:
62:
3375:
3374:
3214:
3213:
2868:Anchor comparison
2859:—Practical-Sailor
2798:Smith, Everrett;
2339:978-1-4729-1548-1
2072:"The Best Anchor"
2013:Hallerberg, Don,
1982:978-1-57409-093-2
1721:978-0-415-02635-2
1577:978-0-471-28948-7
1545:Oceans portal
1235:Backing an anchor
1209:, below.) In the
1134:
1133:
1081:Intercept Theorem
1006:warping an anchor
850:into the seabed.
826:Permanent anchors
565:CQR plough anchor
545:Herreshoff anchor
296:
295:
288:
270:
18:Danforth (anchor)
16:(Redirected from
3425:
3388:Heraldic charges
3322:Passage planning
3282:Maritime studies
3241:
3234:
3227:
3218:
3217:
2991:Carpenter's walk
2897:
2890:
2883:
2874:
2873:
2846:
2838:
2825:The Kedge-anchor
2702:
2701:
2694:
2688:
2687:
2677:
2671:
2666:
2660:
2659:
2651:
2643:
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2611:
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2601:
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2555:
2553:
2551:
2536:
2530:
2520:
2514:
2513:
2505:
2499:
2498:
2493:Mathias Wagner.
2490:
2484:
2483:
2478:Bjarne Knudsen.
2475:
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2286:
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2277:
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2274:
2272:
2258:
2252:
2251:
2249:
2247:
2238:. Archived from
2236:"Vulcan website"
2232:
2226:
2225:
2213:
2207:
2206:
2198:
2192:
2189:
2183:
2182:
2180:
2178:
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1839:
1837:
1835:
1830:. 2 January 2015
1828:Active Fisherman
1820:
1814:
1813:
1811:
1809:
1799:"Grapnel anchor"
1795:
1789:
1776:
1770:
1769:
1767:
1765:
1756:. Archived from
1745:
1739:
1738:
1730:
1724:
1709:
1703:
1702:
1691:
1685:
1684:
1673:
1664:
1663:
1647:
1641:
1640:
1638:
1631:
1622:
1616:
1606:
1600:
1594:
1588:
1587:
1586:
1584:
1561:
1543:
1542:
1510:
1501:
1479:
1476:
1473:
1471:
1389:Anchor as symbol
1241:tandem anchoring
1129:
1126:
1108:
1101:
1008:, also known as
896:Robert Stevenson
819:Practical Sailor
529:A grapnel anchor
484:Stockless anchor
478:Stockless anchor
434:Admiralty anchor
323:mushroom anchors
291:
284:
280:
277:
271:
269:
228:
204:
196:
165:
159:
158:
149:
80:Brittany, France
39:Anchoring effect
21:
3433:
3432:
3428:
3427:
3426:
3424:
3423:
3422:
3378:
3377:
3376:
3371:
3248:
3245:
3215:
3210:
3126:Quarter gallery
2931:Anchor windlass
2907:
2901:
2853:
2809:
2807:Further reading
2742:Hinz, Earl R.;
2728:Edwards, Fred;
2711:
2706:
2705:
2696:
2695:
2691:
2678:
2674:
2667:
2663:
2644:
2640:
2630:
2628:
2620:
2619:
2615:
2607:
2603:
2602:
2598:
2592:Wayback Machine
2583:
2579:
2573:Wayback Machine
2563:
2559:
2549:
2547:
2538:
2537:
2533:
2521:
2517:
2508:Alain Fraysse.
2506:
2502:
2491:
2487:
2476:
2472:
2467:
2463:
2453:
2451:
2443:
2442:
2438:
2433:
2429:
2419:
2417:
2409:
2408:
2404:
2393:
2392:
2388:
2383:. January 2001.
2377:
2376:
2372:
2362:
2360:
2352:
2351:
2347:
2340:
2324:
2320:
2312:
2308:
2302:Wayback Machine
2293:
2289:
2284:
2280:
2270:
2268:
2260:
2259:
2255:
2245:
2243:
2242:on 8 March 2019
2234:
2233:
2229:
2214:
2210:
2199:
2195:
2190:
2186:
2176:
2174:
2166:
2165:
2161:
2151:
2149:
2139:
2135:
2119:
2115:
2099:
2095:
2085:
2083:
2070:
2069:
2065:
2056:
2054:
2050:
2037:
2036:
2032:
2027:
2023:
2019:13 October 1992
2014:
2012:
2008:
1995:
1994:
1990:
1983:
1967:
1963:
1950:
1949:
1945:
1937:
1930:
1926:
1925:
1921:
1914:
1905:
1901:
1847:
1843:
1833:
1831:
1822:
1821:
1817:
1807:
1805:
1797:
1796:
1792:
1777:
1773:
1763:
1761:
1746:
1742:
1731:
1727:
1710:
1706:
1693:
1692:
1688:
1675:
1674:
1667:
1648:
1644:
1636:
1629:
1623:
1619:
1607:
1603:
1595:
1591:
1582:
1580:
1578:
1562:
1558:
1553:
1537:
1508:
1499:
1486:
1477:
1474:
1469:
1468:
1431:Mariner's Cross
1391:
1351:to weigh anchor
1339:
1337:Weighing anchor
1315:
1306:
1257:Peter the Great
1249:
1237:
1220:
1203:
1194:
1185:
1170:anchor windlass
1139:
1130:
1124:
1121:
1114:needs expansion
1068:
1034:
957:
948:
936:
927:
873:
828:
801:
684:
660:
621:
619:Danforth anchor
607:
567:
559:
557:Northill anchor
547:
523:
511:
486:
480:
436:
405:
374:
368:
363:
354:
336:(also called a
292:
281:
275:
272:
229:
227:
217:
205:
194:
49:
42:
35:
28:
23:
22:
15:
12:
11:
5:
3431:
3421:
3420:
3415:
3410:
3405:
3400:
3395:
3390:
3373:
3372:
3370:
3369:
3364:
3359:
3354:
3349:
3344:
3339:
3334:
3329:
3324:
3319:
3317:Propeller walk
3314:
3309:
3304:
3302:Ship stability
3299:
3294:
3292:Nautical terms
3289:
3284:
3279:
3274:
3272:Ice navigation
3269:
3264:
3258:
3256:
3250:
3249:
3244:
3243:
3236:
3229:
3221:
3212:
3211:
3209:
3208:
3203:
3198:
3193:
3188:
3183:
3178:
3173:
3168:
3163:
3158:
3153:
3148:
3143:
3138:
3133:
3128:
3123:
3118:
3113:
3108:
3103:
3098:
3093:
3088:
3083:
3081:Keel (Canting)
3078:
3073:
3068:
3063:
3058:
3053:
3048:
3043:
3038:
3033:
3028:
3023:
3018:
3013:
3008:
3003:
2998:
2993:
2988:
2983:
2978:
2973:
2968:
2963:
2958:
2953:
2948:
2943:
2938:
2933:
2928:
2923:
2918:
2912:
2909:
2908:
2900:
2899:
2892:
2885:
2877:
2871:
2870:
2865:
2860:
2852:
2851:External links
2849:
2848:
2847:
2836:"Anchor"
2830:
2829:
2828:
2808:
2805:
2804:
2803:
2796:
2782:
2768:
2754:
2740:
2726:
2724:978-1795717410
2710:
2707:
2704:
2703:
2689:
2672:
2661:
2638:
2613:
2596:
2577:
2557:
2531:
2515:
2500:
2485:
2470:
2461:
2436:
2427:
2402:
2386:
2380:Cruising World
2370:
2345:
2338:
2318:
2306:
2287:
2278:
2253:
2227:
2208:
2193:
2184:
2159:
2133:
2113:
2093:
2063:
2055:Bruce, Peter,
2048:
2030:
2021:
2006:
1988:
1981:
1961:
1956:www.lewmar.com
1943:
1919:
1899:
1841:
1815:
1790:
1771:
1740:
1725:
1704:
1686:
1665:
1642:
1617:
1601:
1589:
1576:
1555:
1554:
1552:
1549:
1548:
1547:
1535:
1530:
1527:Anchors Aweigh
1523:
1517:
1511:
1502:
1496:Digital anchor
1493:
1490:Anchor coinage
1485:
1482:
1427:Anchored Cross
1399:Triple Entente
1390:
1387:
1338:
1335:
1314:
1311:
1305:
1302:
1248:
1245:
1239:Also known as
1236:
1233:
1219:
1216:
1202:
1199:
1193:
1190:
1184:
1181:
1138:
1135:
1132:
1131:
1111:
1109:
1067:
1064:
1033:
1030:
956:
955:Anchoring gear
953:
947:
944:
935:
932:
926:
923:
872:
869:
827:
824:
823:
822:
812:
809:Norfolk Broads
800:
797:
796:
795:
776:
775:
760:
759:
752:
751:
736:
735:
720:
719:
704:
703:
683:
680:
659:
656:
620:
617:
612:self-launching
606:
603:
566:
563:
558:
555:
546:
543:
522:
519:
510:
507:
482:Main article:
479:
476:
461:patent anchors
435:
432:
404:
403:Fluked anchors
401:
370:Main article:
367:
364:
362:
359:
353:
352:Holding ground
350:
312:Akaroa Harbour
294:
293:
208:
206:
199:
193:
190:
26:
9:
6:
4:
3:
2:
3430:
3419:
3416:
3414:
3411:
3409:
3406:
3404:
3401:
3399:
3396:
3394:
3391:
3389:
3386:
3385:
3383:
3368:
3365:
3363:
3360:
3358:
3355:
3353:
3350:
3348:
3345:
3343:
3340:
3338:
3335:
3333:
3330:
3328:
3325:
3323:
3320:
3318:
3315:
3313:
3310:
3308:
3307:Hydrodynamics
3305:
3303:
3300:
3298:
3295:
3293:
3290:
3288:
3285:
3283:
3280:
3278:
3275:
3273:
3270:
3268:
3265:
3263:
3260:
3259:
3257:
3255:
3251:
3242:
3237:
3235:
3230:
3228:
3223:
3222:
3219:
3207:
3204:
3202:
3199:
3197:
3194:
3192:
3189:
3187:
3184:
3182:
3179:
3177:
3174:
3172:
3169:
3167:
3166:Stern or poop
3164:
3162:
3159:
3157:
3154:
3152:
3149:
3147:
3144:
3142:
3139:
3137:
3134:
3132:
3129:
3127:
3124:
3122:
3119:
3117:
3114:
3112:
3109:
3107:
3104:
3102:
3099:
3097:
3094:
3092:
3089:
3087:
3084:
3082:
3079:
3077:
3074:
3072:
3069:
3067:
3064:
3062:
3059:
3057:
3054:
3052:
3049:
3047:
3044:
3042:
3039:
3037:
3034:
3032:
3029:
3027:
3024:
3022:
3019:
3017:
3014:
3012:
3009:
3007:
3004:
3002:
2999:
2997:
2994:
2992:
2989:
2987:
2984:
2982:
2979:
2977:
2974:
2972:
2969:
2967:
2964:
2962:
2959:
2957:
2954:
2952:
2949:
2947:
2944:
2942:
2939:
2937:
2934:
2932:
2929:
2927:
2924:
2922:
2919:
2917:
2914:
2913:
2910:
2906:
2898:
2893:
2891:
2886:
2884:
2879:
2878:
2875:
2869:
2866:
2864:
2861:
2858:
2855:
2854:
2844:
2843:
2837:
2831:
2826:
2822:
2818:
2817:
2815:
2811:
2810:
2801:
2797:
2795:
2794:0-671-67447-1
2791:
2787:
2783:
2781:
2780:0-9646036-2-4
2777:
2773:
2769:
2767:
2766:0-19-217522-X
2763:
2759:
2755:
2753:
2752:0-87033-539-1
2749:
2745:
2741:
2739:
2738:0-87742-965-0
2735:
2731:
2727:
2725:
2721:
2717:
2713:
2712:
2699:
2693:
2685:
2684:
2676:
2670:
2665:
2657:
2656:
2650:
2642:
2627:
2623:
2617:
2606:
2600:
2593:
2589:
2586:
2581:
2574:
2570:
2567:
2561:
2546:. 28 May 2021
2545:
2541:
2535:
2529:
2528:0-87033-348-8
2525:
2519:
2511:
2504:
2496:
2489:
2481:
2474:
2465:
2450:
2446:
2440:
2431:
2416:
2412:
2406:
2399:. March 2005.
2398:
2397:
2390:
2382:
2381:
2374:
2359:
2355:
2349:
2341:
2335:
2331:
2330:
2322:
2316:, wordnik.com
2315:
2314:Stream Anchor
2310:
2303:
2299:
2296:
2291:
2282:
2267:
2263:
2257:
2241:
2237:
2231:
2223:
2219:
2212:
2204:
2197:
2188:
2173:
2169:
2163:
2148:
2144:
2137:
2131:
2130:2-914423-46-2
2127:
2123:
2117:
2111:
2110:0-07-147508-7
2107:
2103:
2097:
2081:
2077:
2073:
2067:
2061:9 August 1983
2059:
2052:
2044:
2040:
2034:
2025:
2017:
2010:
2002:
1998:
1992:
1984:
1978:
1974:
1973:
1965:
1957:
1953:
1947:
1936:
1929:
1923:
1910:
1903:
1895:
1891:
1887:
1883:
1879:
1875:
1871:
1867:
1859:
1855:
1851:
1850:Taylor, G. I.
1845:
1829:
1825:
1819:
1804:
1803:AceBoater.com
1800:
1794:
1787:
1783:
1782:
1775:
1759:
1755:
1751:
1744:
1736:
1729:
1722:
1718:
1714:
1708:
1700:
1696:
1690:
1682:
1678:
1672:
1670:
1661:
1657:
1653:
1646:
1635:
1628:
1621:
1614:
1610:
1605:
1598:
1593:
1579:
1573:
1569:
1568:
1560:
1556:
1546:
1541:
1536:
1534:
1531:
1528:
1524:
1521:
1518:
1515:
1512:
1506:
1505:Fouled anchor
1503:
1497:
1494:
1491:
1488:
1487:
1481:
1466:
1461:
1458:
1456:
1452:
1448:
1444:
1443:coats of arms
1440:
1436:
1432:
1428:
1420:
1416:
1411:
1404:
1400:
1395:
1386:
1384:
1380:
1376:
1373:to a dock or
1372:
1368:
1364:
1360:
1356:
1352:
1348:
1343:
1334:
1332:
1328:
1323:
1321:
1320:anchor tender
1310:
1301:
1297:
1293:
1291:
1286:
1282:
1277:
1275:
1274:
1269:
1262:
1258:
1253:
1244:
1242:
1232:
1228:
1225:
1224:Bahamian moor
1218:Bahamian moor
1215:
1212:
1211:bow and stern
1208:
1207:Bahamian moor
1201:Bow and stern
1198:
1189:
1180:
1177:
1173:
1171:
1165:
1157:
1151:
1150:
1143:
1128:
1119:
1115:
1112:This section
1110:
1107:
1103:
1102:
1099:
1096:
1092:
1090:
1084:
1082:
1076:
1072:
1063:
1060:
1054:
1051:
1047:
1046:Polypropylene
1043:
1038:
1029:
1025:
1023:
1019:
1018:stream anchor
1015:
1011:
1007:
1003:
999:
998:bower anchors
994:
992:
985:
981:
977:
976:
969:
961:
952:
943:
940:
931:
922:
918:
915:
913:
909:
905:
901:
897:
889:
885:
884:
877:
868:
865:
861:
857:
851:
849:
845:
841:
837:
833:
820:
816:
813:
810:
806:
803:
802:
793:
789:
786:
785:
780:
773:
770:
769:
764:
757:
754:
753:
749:
746:
745:
742:Mantus anchor
740:
733:
730:
729:
724:
717:
714:
713:
708:
701:
697:
694:
693:
692:
688:
679:
676:
673:
664:
655:
653:
647:
645:
640:
636:
634:
633:landing craft
625:
616:
613:
602:
598:
594:
592:
588:
584:
580:
571:
562:
554:
552:
542:
538:
536:
527:
518:
516:
506:
502:
499:
490:
485:
475:
473:
469:
464:
462:
456:
452:
449:
440:
431:
429:
425:
420:
417:
409:
400:
398:
394:
389:
387:
378:
373:
358:
349:
347:
343:
339:
335:
330:
328:
324:
320:
313:
308:
300:
290:
287:
279:
268:
265:
261:
258:
254:
251:
247:
244:
240:
237: –
236:
232:
231:Find sources:
225:
221:
215:
214:
209:This article
207:
203:
198:
197:
189:
187:
183:
179:
174:
172:
167:
164:
154:
150:
148:
143:
139:
135:
131:
130:body of water
127:
123:
119:
115:
106:
100:
96:
92:
91:Kirjurinluoto
87:
81:
78:, north-west
77:
73:
72:
66:
59:
55:
51:
47:
40:
33:
19:
3408:Ship anchors
3361:
3327:Maritime law
3267:Watchkeeping
3146:Ship's wheel
3011:Companionway
2925:
2905:sailing ship
2840:
2824:
2820:
2813:
2799:
2785:
2771:
2757:
2743:
2729:
2715:
2709:Bibliography
2692:
2686:. p. 3.
2682:
2675:
2669:Hebrews 6:19
2664:
2653:
2641:
2629:. Retrieved
2625:
2616:
2599:
2580:
2560:
2548:. Retrieved
2544:pontoony.com
2543:
2534:
2518:
2503:
2488:
2473:
2464:
2452:. Retrieved
2448:
2439:
2430:
2418:. Retrieved
2414:
2405:
2396:MotorBoating
2395:
2389:
2379:
2373:
2361:. Retrieved
2357:
2348:
2328:
2321:
2309:
2290:
2281:
2269:. Retrieved
2266:Knox Anchors
2265:
2256:
2244:. Retrieved
2240:the original
2230:
2221:
2211:
2196:
2187:
2175:. Retrieved
2171:
2162:
2150:. Retrieved
2146:
2136:
2121:
2116:
2101:
2096:
2084:. Retrieved
2080:the original
2075:
2066:
2051:
2042:
2033:
2024:
2009:
2000:
1991:
1971:
1964:
1955:
1946:
1922:
1902:
1869:
1865:
1857:
1853:
1844:
1832:. Retrieved
1827:
1818:
1806:. Retrieved
1802:
1793:
1779:
1778:"anchor" in
1774:
1762:. Retrieved
1758:the original
1753:
1743:
1734:
1728:
1712:
1707:
1698:
1689:
1680:
1655:
1645:
1620:
1615:, on Perseus
1612:
1604:
1592:
1581:, retrieved
1566:
1559:
1462:
1459:
1454:
1450:
1423:
1382:
1378:
1374:
1370:
1366:
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1304:Club hauling
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1118:adding to it
1113:
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1022:kedge anchor
1021:
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1002:kedge anchor
1001:
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988:
974:
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937:
928:
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856:engine block
852:
832:lightvessels
829:
818:
814:
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787:
771:
755:
747:
731:
715:
710:Spade anchor
699:
695:
689:
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677:
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637:
630:
611:
608:
605:Delta anchor
599:
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230:
218:Please help
213:verification
210:
175:
168:
144:
113:
111:
69:
50:
3332:Dry-docking
3131:Quarterdeck
3021:Daggerboard
3016:Crow's nest
2996:Centreboard
2966:Bow or prow
2916:Aftercastle
2903:Parts of a
2631:26 December
2454:26 December
2420:26 December
2363:26 December
2177:26 December
2152:12 December
2076:Refit Guide
1784:. Chicago:
1764:2 September
1656:West Marine
1583:15 February
1329:, like the
1290:run aground
1192:Forked moor
1125:August 2021
1032:Anchor rode
910:whilst the
904:lightvessel
811:in England.
788:Knox Anchor
782:Knox Anchor
276:August 2020
71:Amoco Cadiz
3382:Categories
3367:Sea anchor
3262:Navigation
3254:Seamanship
3101:Orlop deck
3036:Forecastle
3031:Figurehead
2961:Boom brake
2951:Bilgeboard
2043:boatus.com
1860:: 367–368.
1551:References
1520:Sea anchor
1255:Statue of
1164:to swing.
1149:Polarstern
978:memorial,
973:HMAS
925:Deadweight
912:lighthouse
890:, Virginia
888:Portsmouth
883:Portsmouth
881:lightship
805:Mud weight
696:Bügelanker
428:Ladby ship
424:Nemi ships
386:Bronze Age
246:newspapers
178:sea anchor
68:Anchor of
3362:Anchoring
3201:Whipstaff
3171:Sternpost
3161:Starboard
3111:Poop deck
3106:Outrigger
2921:Afterdeck
2001:google.de
1894:123337875
1862:Cited by
1439:Black Sea
1415:Mariehamn
1403:Britannia
1367:under way
1345:The term
1089:anchorage
1042:Polyester
984:Australia
908:Bell Rock
792:John Knox
615:bottoms.
468:hawsepipe
58:Stockless
3337:Ropework
3277:Pilotage
3181:Taffrail
3121:Porthole
3091:Leeboard
3066:Jackline
2971:Bowsprit
2941:Beakhead
2588:Archived
2569:Archived
2298:Archived
2295:Moorings
2218:"Anchor"
2086:22 March
1935:Archived
1872:: 1–14.
1699:tc.gc.ca
1660:Archived
1634:Archived
1484:See also
1475:⚓
1447:heraldic
1375:anchored
1261:Voronezh
1147:RV
980:Canberra
975:Canberra
871:Mushroom
846:that is
815:Bulwagga
672:Scotland
644:Brittany
515:grapnels
235:"Anchor"
192:Overview
76:Portsall
3418:Weights
3357:Mooring
3352:Buoyage
3287:Sailing
3196:Transom
3071:Jibboom
3051:Gunwale
3046:Gangway
3006:Cockpit
2986:Cathead
2981:Capstan
2550:20 June
2271:10 July
2246:7 March
1874:Bibcode
1723:, p.82.
1273:warping
1268:Kedging
1247:Kedging
1014:mooring
1010:kedging
472:cathead
448:shackle
361:History
260:scholar
186:running
171:mooring
138:current
124:to the
99:Finland
3186:Tiller
3176:Strake
3141:Rudder
3086:Kelson
3001:Chains
2926:Anchor
2792:
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2736:
2722:
2526:
2336:
2128:
2108:
1979:
1915:
1892:
1834:18 May
1808:18 May
1719:
1609:ἄγκυρα
1597:anchor
1574:
1478:ANCHOR
1472:
1470:U+2693
1451:anchry
1449:terms
1429:", or
1379:Aweigh
1371:moored
1363:Aweigh
1359:stowed
1355:aweigh
1347:aweigh
1059:swivel
1050:manila
900:Pharos
864:screws
860:augers
848:driven
772:Vulcan
748:Mantus
579:plough
327:flukes
319:seabed
262:
255:
248:
241:
233:
182:drogue
163:ankȳra
157:ἄγκυρα
147:ancora
122:vessel
114:anchor
3342:Knots
3206:Winch
3041:Frame
2976:Cable
2956:Bitts
2946:Bilge
2608:(PDF)
1938:(PDF)
1931:(PDF)
1890:S2CID
1637:(PDF)
1630:(PDF)
1455:ancre
1419:Åland
1285:kedge
1281:bower
1066:Scope
934:Auger
840:storm
836:buoys
756:Ultra
732:Rocna
716:Spade
698:, or
585:, or
346:chain
340:or a
338:cable
267:JSTOR
253:books
153:Greek
142:Latin
128:of a
118:metal
3156:Stem
3151:Skeg
3116:Port
3096:Mast
3076:Keel
3061:Hull
3056:Head
3026:Deck
2790:ISBN
2776:ISBN
2762:ISBN
2748:ISBN
2734:ISBN
2720:ISBN
2633:2020
2552:2021
2524:ISBN
2456:2020
2422:2020
2365:2020
2334:ISBN
2273:2017
2248:2019
2179:2020
2154:2023
2126:ISBN
2106:ISBN
2088:2022
1977:ISBN
1836:2016
1810:2016
1766:2020
1717:ISBN
1585:2024
1572:ISBN
1383:away
991:rode
844:pile
700:Wasi
535:drag
416:Iron
395:and
342:warp
334:rode
239:news
134:wind
95:Pori
3191:Top
3136:Rib
1882:doi
1870:173
1453:or
1270:or
1259:in
1120:.
886:at
222:by
166:).
136:or
126:bed
112:An
74:in
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1954:.
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1668:^
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982:,
593:.
176:A
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3240:e
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