{"id":100066,"date":"2026-10-26T08:20:46","date_gmt":"2026-10-26T08:20:46","guid":{"rendered":"https:\/\/cargoholidays.com\/?p=100066"},"modified":"2026-10-26T08:20:47","modified_gmt":"2026-10-26T08:20:47","slug":"how-do-ship-anchors-work","status":"publish","type":"post","link":"https:\/\/cargoholidays.com\/de\/how-do-ship-anchors-work","title":{"rendered":"How Do Ship Anchors Work? Anchors, Chains and Anchoring Explained"},"content":{"rendered":"<div class=\"chb-post\">\n\n<p class=\"chb-updated\">Last updated: 26 October 2026 &middot; By Steve Joury, cargo trip advisor at CargoHolidays<\/p>\n\n<p class=\"chb-lede\"><strong>A ship&rsquo;s anchor works by digging into the seabed while the heavy chain lies along the bottom, absorbing the pull from wind and current.<\/strong> On big cargo ships, each anchor can weigh 10 to 30 tonnes. Here&rsquo;s how anchoring really works.<\/p>\n\n<div class=\"chb-cta-bar\">\n<a class=\"chb-btn\" href=\"https:\/\/cargoholidays.com\/de\/anfrage-fur-eine-frachtschiffreise\/\">Find my voyage &rarr;<\/a>\n<a class=\"chb-btn chb-btn--ghost\" href=\"https:\/\/cargoholidays.com\/de\/inside-a-cargo-ship\/\">Inside a cargo ship<\/a>\n<\/div>\n\n<div class=\"chb-keyfacts\">\n<p class=\"chb-keyfacts-title\">Key facts at a glance<\/p>\n<ul><li>Anchors <strong>dig into the seabed<\/strong>; the chain&rsquo;s weight provides much of the grip.<\/li><li>Large cargo ship anchors weigh roughly <strong>10&ndash;30 tonnes<\/strong> each.<\/li><li>Chain is measured in <strong>shots<\/strong> of 27.5 metres (15 fathoms).<\/li><li>Ships typically let out several times the water depth in chain.<\/li><li>Anchors are for waiting in shallow water, not for stopping a moving ship.<\/li><\/ul>\n<\/div>\n\n<nav class=\"chb-toc\" aria-label=\"Contents\">\n<p class=\"chb-toc-title\">In this guide<\/p>\n<ol><li><a href=\"#how-do-ship-anchors-work\">How do ship anchors work?<\/a><\/li><li><a href=\"#how-heavy-is-a-cargo-ship-anchor\">How heavy is a cargo ship anchor?<\/a><\/li><li><a href=\"#dropping-and-raising-anchor\">Dropping and raising anchor<\/a><\/li><li><a href=\"#why-cargo-ships-anchor\">Why cargo ships anchor<\/a><\/li><li><a href=\"#anchoring-on-a-freighter-voyage\">Anchoring on a freighter voyage<\/a><\/li><li><a href=\"#faq\">H\u00e4ufig gestellte Fragen<\/a><\/li><\/ol>\n<\/nav>\n\n<h2 id=\"how-do-ship-anchors-work\">How do ship anchors work?<\/h2>\n<p>People often imagine an anchor as a heavy weight that holds the ship by itself. In reality, <strong>how ship anchors work<\/strong> is a team effort: the anchor&rsquo;s flukes dig into sand or mud, and a long length of heavy chain lies along the seabed. When wind or current pulls the ship, the chain lifts gradually off the bottom, absorbing the load before it ever reaches the anchor. Only in strong conditions does the anchor itself take the full strain.<\/p>\n<figure class=\"chb-figure\"><img src=\"https:\/\/cargoholidays.com\/wp-content\/uploads\/2021\/09\/AdobeStock_330948268.jpeg\" alt=\"How do ship anchors work &ndash; cargo ship at anchor offshore\" title=\"How do ship anchors work &ndash; cargo ship at anchor offshore\" width=\"2000\" height=\"1111\" loading=\"lazy\" decoding=\"async\"><figcaption>Ships often wait at anchor outside busy ports.<\/figcaption><\/figure>\n<h2 id=\"how-heavy-is-a-cargo-ship-anchor\">How heavy is a cargo ship anchor?<\/h2>\n<table><thead><tr><th>Ship<\/th><th>Approx. anchor weight<\/th><\/tr><\/thead><tbody>\n<tr><td>Small feeder or coaster<\/td><td>2 &ndash; 6 tonnes<\/td><\/tr>\n<tr><td>Mid-size container ship<\/td><td>8 &ndash; 15 tonnes<\/td><\/tr>\n<tr><td>Ultra-large container ship \/ VLCC<\/td><td>20 &ndash; 30 tonnes<\/td><\/tr>\n<\/tbody><\/table>\n<p>Each link of chain on a big ship can weigh well over 100 kg. Ships carry two bower anchors at the bow, sometimes with a spare.<\/p>\n<h2 id=\"dropping-and-raising-anchor\">Dropping and raising anchor<\/h2>\n<ol>\n<li>The ship slows almost to a stop at the chosen position.<\/li>\n<li>The crew at the bow release the brake on the <strong>windlass<\/strong>, and the anchor drops.<\/li>\n<li>Chain is paid out while the ship moves gently astern, laying it along the seabed.<\/li>\n<li>When the anchor &ldquo;bites&rdquo;, the officer checks the ship isn&rsquo;t dragging.<\/li>\n<li>To leave, the windlass heaves the chain back aboard and the anchor is housed.<\/li>\n<\/ol>\n<p>The rattle of chain running out is one of the most dramatic sounds on a ship &ndash; passengers often hear it at dawn while waiting off a busy port.<\/p>\n<figure class=\"chb-figure\"><img src=\"https:\/\/cargoholidays.com\/wp-content\/uploads\/2026\/10\/how-do-ship-anchors-work-infographic-cargoholidays.jpg\" alt=\"How do ship anchors work infographic\" title=\"How do ship anchors work infographic\" width=\"1200\" height=\"800\" loading=\"lazy\" decoding=\"async\"><figcaption>Ship anchors and chains at a glance.<\/figcaption><\/figure>\n<h2 id=\"why-cargo-ships-anchor\">Why cargo ships anchor<\/h2>\n<ul>\n<li>Waiting for a berth outside a congested port.<\/li>\n<li>Waiting for a canal transit, for example the <a href=\"https:\/\/cargoholidays.com\/de\/panama-canal-cargo-ship-transit\/\">Panamakanal<\/a>.<\/li>\n<li>Sheltering from bad weather.<\/li>\n<li>Waiting for orders or cargo.<\/li>\n<\/ul>\n<p>Anchoring is only possible in relatively shallow water; in the open ocean ships simply drift or keep moving.<\/p>\n<h2 id=\"anchoring-on-a-freighter-voyage\">Anchoring on a freighter voyage<\/h2>\n<p>On many voyages you&rsquo;ll spend hours or days at anchor before entering port. It&rsquo;s a peaceful time: calm water, other ships all around and the port lights at night. Bring a book and binoculars. Read <a href=\"https:\/\/cargoholidays.com\/de\/inside-a-cargo-ship\/\">inside a cargo ship<\/a> to see where the anchors are kept.<\/p>\n<div class=\"chb-tip\"><strong>Tip:<\/strong> Ask the chief officer if you can watch anchoring from a safe spot &ndash; it&rsquo;s a fascinating operation, but stay well clear of the windlass and chain.<\/div>\n\n<section class=\"chb-related\" aria-label=\"Verwandte Anleitungen\">\n<h2 id=\"related-guides\">Related cargo ship travel guides<\/h2>\n<div class=\"chb-grid\"><a class=\"chb-card\" href=\"https:\/\/cargoholidays.com\/de\/inside-a-cargo-ship\/\"><span class=\"chb-card-kicker\">Ships<\/span><span class=\"chb-card-title\">Inside a cargo ship<\/span><span class=\"chb-card-more\">Read guide &rarr;<\/span><\/a><a class=\"chb-card\" href=\"https:\/\/cargoholidays.com\/de\/cargo-ship-in-a-storm\/\"><span class=\"chb-card-kicker\">Ships<\/span><span class=\"chb-card-title\">Was passiert mit einem Frachtschiff bei einem Sturm?<\/span><span class=\"chb-card-more\">Read guide &rarr;<\/span><\/a><a class=\"chb-card\" href=\"https:\/\/cargoholidays.com\/de\/how-big-is-a-container-ship\/\"><span class=\"chb-card-kicker\">Ships<\/span><span class=\"chb-card-title\">How big is a container ship?<\/span><span class=\"chb-card-more\">Read guide &rarr;<\/span><\/a><a class=\"chb-card\" href=\"https:\/\/cargoholidays.com\/de\/how-do-cargo-ships-navigate\/\"><span class=\"chb-card-kicker\">Ships<\/span><span class=\"chb-card-title\">How do cargo ships navigate?<\/span><span class=\"chb-card-more\">Read guide &rarr;<\/span><\/a><\/div>\n<\/section>\n\n<h2 id=\"faq\">H\u00e4ufig gestellte Fragen<\/h2>\n<div class=\"chb-faq\">\n<h3>How does a ship anchor hold a ship?<\/h3>\n<p>The anchor digs into the seabed and the heavy chain lying on the bottom absorbs most of the pull.<\/p><h3>How heavy is a cargo ship anchor?<\/h3>\n<p>Roughly 10 to 30 tonnes on large cargo ships.<\/p><h3>How much chain does a ship use when anchoring?<\/h3>\n<p>Usually several times the water depth, depending on conditions.<\/p><h3>Can a ship anchor in the middle of the ocean?<\/h3>\n<p>No. The water is far too deep; anchoring is done near coasts and ports.<\/p><h3>Can an anchor stop a moving ship?<\/h3>\n<p>Anchors are not used as brakes in normal operations, though they can help in emergencies at low speed.<\/p>\n<\/div>\n\n<div class=\"chb-booking\">\n<p class=\"chb-booking-title\">Experience life at anchor<\/p>\n<p>Wait off a great port at dawn as a passenger on a freighter voyage.<\/p>\n<a class=\"chb-btn chb-btn--big\" href=\"https:\/\/cargoholidays.com\/de\/anfrage-fur-eine-frachtschiffreise\/\">Find my voyage &rarr;<\/a>\n<p class=\"chb-booking-small\">Free, no-obligation quote &middot; Reply within 48 hours &middot; <a href=\"https:\/\/cargoholidays.com\/de\/frag-den-kapitan\/\">Fragen Sie den Kapit\u00e4n<\/a> &middot; <a href=\"https:\/\/cargoholidays.com\/de\/wie-zu-gehen-fur-fracht-kreuzfahrt\/\">How booking works<\/a><\/p>\n<\/div>\n\n<\/div>\n\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How does a ship anchor hold a ship?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The anchor digs into the seabed and the heavy chain lying on the bottom absorbs most of the pull.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How heavy is a cargo ship anchor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Roughly 10 to 30 tonnes on large cargo ships.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How much chain does a ship use when anchoring?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Usually several times the water depth, depending on conditions.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can a ship anchor in the middle of the ocean?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. The water is far too deep; anchoring is done near coasts and ports.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can an anchor stop a moving ship?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Anchors are not used as brakes in normal operations, though they can help in emergencies at low speed.\"\n            }\n        }\n    ]\n}<\/script>\n\n<style>\n.chb-post{--chb-navy:#0b2545;--chb-sea:#134074;--chb-teal:#0f8b8d;--chb-sand:#f4efe6;--chb-orange:#e8772e;--chb-ink:#1d2a36;--chb-muted:#5b6b7a;--chb-line:#dfe6ec;max-width:820px;margin:0 auto;color:var(--chb-ink);font-size:18px;line-height:1.75;font-family:inherit}\n.chb-post h2{font-size:1.6em;line-height:1.25;color:var(--chb-navy);margin:2.2em 0 .6em;padding-top:.4em;border-top:3px solid var(--chb-teal);scroll-margin-top:90px}\n.chb-post h3{font-size:1.18em;color:var(--chb-sea);margin:1.6em 0 .4em}\n.chb-post p{margin:0 0 1.1em}\n.chb-post a{color:var(--chb-teal);text-decoration:underline;text-underline-offset:3px}\n.chb-post a:hover{color:var(--chb-navy)}\n.chb-post ul,.chb-post ol{margin:0 0 1.2em 1.2em;padding:0}\n.chb-post li{margin:.35em 0}\n.chb-updated{font-size:.85em;color:var(--chb-muted);margin-bottom:1em}\n.chb-lede{font-size:1.12em;border-left:5px solid var(--chb-orange);padding:.2em 0 .2em 1em}\n.chb-cta-bar{display:flex;flex-wrap:wrap;gap:12px;margin:1.4em 0 1.8em}\n.chb-post a.chb-btn{display:inline-block;background:var(--chb-orange);color:#fff;text-decoration:none;font-weight:700;padding:.75em 1.4em;border-radius:999px;box-shadow:0 4px 14px rgba(232,119,46,.35);transition:transform .15s,background .15s}\n.chb-post a.chb-btn:hover{background:#cf6420;color:#fff;transform:translateY(-2px)}\n.chb-post a.chb-btn--ghost{background:transparent;color:var(--chb-navy);border:2px solid var(--chb-navy);box-shadow:none}\n.chb-post a.chb-btn--ghost:hover{background:var(--chb-navy);color:#fff}\n.chb-post a.chb-btn--big{font-size:1.1em;padding:.9em 2em}\n.chb-keyfacts{background:var(--chb-sand);border-radius:14px;padding:1.2em 1.4em;margin:0 0 1.6em}\n.chb-keyfacts-title,.chb-toc-title{font-weight:800;text-transform:uppercase;letter-spacing:.06em;font-size:.8em;color:var(--chb-navy);margin:0 0 .5em}\n.chb-keyfacts ul{list-style:none;margin:0}\n.chb-keyfacts li{padding-left:1.6em;position:relative}\n.chb-keyfacts li:before{content:\"&#9875;\";position:absolute;left:0;color:var(--chb-teal)}\n.chb-toc{border:1px solid var(--chb-line);border-radius:14px;padding:1em 1.4em;margin:0 0 1.6em;background:#fff}\n.chb-toc ol{margin:0 0 0 1.2em;font-size:.95em}\n.chb-toc a{text-decoration:none}\n.chb-figure{margin:1.8em 0;text-align:center}\n.chb-figure img{width:100%;height:auto;border-radius:14px;display:block}\n.chb-figure figcaption{font-size:.85em;color:var(--chb-muted);margin-top:.5em;font-style:italic}\n.chb-post table{width:100%;border-collapse:collapse;margin:1.2em 0 1.6em;font-size:.92em;display:block;overflow-x:auto}\n.chb-post th{background:var(--chb-navy);color:#fff;text-align:left;padding:.65em .8em;white-space:nowrap}\n.chb-post td{padding:.6em .8em;border-bottom:1px solid var(--chb-line);vertical-align:top}\n.chb-post tr:nth-child(even) td{background:#f8fafb}\n.chb-tip{background:#e9f6f6;border-left:5px solid var(--chb-teal);border-radius:0 12px 12px 0;padding:1em 1.2em;margin:1.4em 0}\n.chb-tip strong:first-child{color:var(--chb-teal)}\n.chb-related{margin-top:2.5em}\n.chb-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}\n.chb-post a.chb-card{display:flex;flex-direction:column;gap:.3em;border:1px solid var(--chb-line);border-radius:14px;padding:1em 1.1em;text-decoration:none;background:#fff;transition:box-shadow .15s,transform .15s}\n.chb-post a.chb-card:hover{box-shadow:0 8px 24px rgba(11,37,69,.12);transform:translateY(-2px)}\n.chb-card-kicker{font-size:.72em;text-transform:uppercase;letter-spacing:.08em;color:var(--chb-orange);font-weight:800}\n.chb-card-title{color:var(--chb-navy);font-weight:700;line-height:1.35}\n.chb-card-more{font-size:.85em;color:var(--chb-teal)}\n.chb-faq h3{background:#f8fafb;border-radius:10px;padding:.6em .9em;margin-bottom:.3em}\n.chb-faq p{padding:0 .9em}\n.chb-booking{margin:2.5em 0 1em;padding:2em 1.6em;border-radius:18px;text-align:center;color:#fff;background:linear-gradient(135deg,var(--chb-navy),var(--chb-sea) 60%,var(--chb-teal))}\n.chb-booking-title{font-size:1.5em;font-weight:800;margin-bottom:.3em}\n.chb-booking p{color:#e8f0f7}\n.chb-booking-small{font-size:.82em;margin-top:1em}\n.chb-booking-small a{color:#fff}\n@media (max-width:640px){.chb-post{font-size:17px}.chb-grid{grid-template-columns:1fr}.chb-post h2{font-size:1.35em}.chb-cta-bar a.chb-btn{width:100%;text-align:center}}\n<\/style>","protected":false},"excerpt":{"rendered":"<p>Last updated: 26 October 2026 &middot; By Steve Joury, cargo trip advisor at CargoHolidays A ship&rsquo;s anchor works by digging into the seabed while the heavy chain lies along the bottom, absorbing the pull from wind and current. On big cargo ships, each anchor can weigh 10 to 30 tonnes. Here&rsquo;s how anchoring really works. [&hellip;]<\/p>","protected":false},"author":1,"featured_media":100016,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"single3.php","format":"standard","meta":[],"categories":[118],"tags":[1801,1788,1588],"yst_prominent_words":[],"acf":[],"_links":{"self":[{"href":"https:\/\/cargoholidays.com\/de\/wp-json\/wp\/v2\/posts\/100066"}],"collection":[{"href":"https:\/\/cargoholidays.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cargoholidays.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cargoholidays.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cargoholidays.com\/de\/wp-json\/wp\/v2\/comments?post=100066"}],"version-history":[{"count":1,"href":"https:\/\/cargoholidays.com\/de\/wp-json\/wp\/v2\/posts\/100066\/revisions"}],"predecessor-version":[{"id":100067,"href":"https:\/\/cargoholidays.com\/de\/wp-json\/wp\/v2\/posts\/100066\/revisions\/100067"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cargoholidays.com\/de\/wp-json\/wp\/v2\/media\/100016"}],"wp:attachment":[{"href":"https:\/\/cargoholidays.com\/de\/wp-json\/wp\/v2\/media?parent=100066"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cargoholidays.com\/de\/wp-json\/wp\/v2\/categories?post=100066"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cargoholidays.com\/de\/wp-json\/wp\/v2\/tags?post=100066"},{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/cargoholidays.com\/de\/wp-json\/wp\/v2\/yst_prominent_words?post=100066"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}