{"id":47790,"date":"2026-10-29T17:35:04","date_gmt":"2026-10-29T16:35:04","guid":{"rendered":"https:\/\/ribsonly.com\/2\/?p=47790"},"modified":"2026-10-29T17:35:06","modified_gmt":"2026-10-29T16:35:06","slug":"seaquest-10-open-test-53-knots-with-twin-300-hp-v8s","status":"publish","type":"post","link":"https:\/\/ribsonly.com\/2\/seaquest-10-open-test-53-knots-with-twin-300-hp-v8s\/","title":{"rendered":"SeaQuest 10 Open Test: 53 Knots With Twin 300 hp V8s"},"content":{"rendered":"\n<iframe width=\"853\" height=\"480\" src=\"https:\/\/www.youtube.com\/embed\/aXR6bCx4-Vc?si=vAX1IGV49AtPkJp7\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n\n\n\n<h2 class=\"wp-block-heading\">New Seaquest 10 Open: A Fast 10-Metre Family RIB<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The SeaQuest 10 Open is a 10-metre RIB built for fast cruising, family comfort and practical overnight stays.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Powered by twin Mercury 300 hp V8 outboards, the test boat reached an impressive 53 knots at 5,800 rpm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It&#8217;s not &#8220;all new&#8221;. Its deep-V hull, shared with SeaQuest\u2019s cabin and semi-cabin models, has been in production since 2007.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A central console leaves 40 cm walkways on both sides, while suspension seats improve comfort.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The generous bow and stern sunpads convert into sleeping areas, and the console houses a private toilet and shower.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the bow there&#8217;s even a berth for 2 persons &#8230; if you&#8217;re the adventurous type.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There\u2019s ample storage, a three-seat aft bench and easy access to the swimming platforms.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SeaQuest also includes extensive equipment as standard, making the final purchase price easier to understand.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Seaquest 10 Open Sea Trial Results<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Engine configuration: twin 300 hp V8 outboards, 600 hp combined.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">RPM<\/th><th class=\"has-text-align-left\" data-align=\"left\">Speed (knots)<\/th><th class=\"has-text-align-left\" data-align=\"left\">Fuel consumption (L\/h)<\/th><th class=\"has-text-align-left\" data-align=\"left\">Fuel efficiency (L\/nm)<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Not stated<\/td><td class=\"has-text-align-left\" data-align=\"left\">12.5<\/td><td class=\"has-text-align-left\" data-align=\"left\">28<\/td><td class=\"has-text-align-left\" data-align=\"left\">2.24<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">3,000<\/td><td class=\"has-text-align-left\" data-align=\"left\">26.7\u201327<\/td><td class=\"has-text-align-left\" data-align=\"left\">47<\/td><td class=\"has-text-align-left\" data-align=\"left\">1.74\u20131.76<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">3,800<\/td><td class=\"has-text-align-left\" data-align=\"left\">34<\/td><td class=\"has-text-align-left\" data-align=\"left\">74<\/td><td class=\"has-text-align-left\" data-align=\"left\">2.18<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">4,200<\/td><td class=\"has-text-align-left\" data-align=\"left\">38<\/td><td class=\"has-text-align-left\" data-align=\"left\">90<\/td><td class=\"has-text-align-left\" data-align=\"left\">2.37<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">4,500<\/td><td class=\"has-text-align-left\" data-align=\"left\">40<\/td><td class=\"has-text-align-left\" data-align=\"left\">103\u2013104<\/td><td class=\"has-text-align-left\" data-align=\"left\">2.58\u20132.60<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">5,500<\/td><td class=\"has-text-align-left\" data-align=\"left\">Not stated<\/td><td class=\"has-text-align-left\" data-align=\"left\">184<\/td><td class=\"has-text-align-left\" data-align=\"left\">Not available<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">5,800<\/td><td class=\"has-text-align-left\" data-align=\"left\">53<\/td><td class=\"has-text-align-left\" data-align=\"left\">187<\/td><td class=\"has-text-align-left\" data-align=\"left\">3.53<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/www.youtube.com\/watch?v=aXR6bCx4-Vc\" target=\"_blank\" rel=\"noreferrer noopener\">source<\/a>, data may vary<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Figures from the supplied sea trial. Fuel consumption is interpreted as the combined rate for both engines. L\/nm is calculated from the reported speed and consumption; values are rounded.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Test Highlights<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td>53<\/td><td>Top speed (knots)<\/td><\/tr><tr><td>600<\/td><td>Total horsepower<\/td><\/tr><tr><td>1.74<\/td><td>Best l\/NM reported<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/www.youtube.com\/watch?v=aXR6bCx4-Vc\" target=\"_blank\" rel=\"noreferrer noopener\">source<\/a>, data may vary<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">This video was published on <a href=\"https:\/\/www.youtube.com\/@BoatFishing\" target=\"_blank\" rel=\"noreferrer noopener\">the <strong>Boat &amp; Fishing Magazine<\/strong> YouTube channel<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">More videos of this Greek brand are here <a href=\"https:\/\/ribsonly.com\/2\/category\/seaquest\/\">for you to enjoy<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Related reading:<\/strong>\u00a0<a href=\"https:\/\/ribsonly.com\/2\/what-is-a-rigid-inflatable-boat-rib\/\">What Is a Rigid Inflatable Boat?<\/a>\u00a0\u00b7\u00a0<a href=\"https:\/\/ribsonly.com\/2\/what-does-rib-stand-for\/\">What Does RIB Stand For?<\/a>\u00a0\u00b7 <a href=\"https:\/\/ribsonly.com\/2\/rib-buying-guide-how-to-choose-the-right-boat\/\">RIB Buying Guide<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<!-- RIBsONLY.com \u2013 Speed converter (knots, km\/h, mph, m\/s) -->\n<!-- Paste into a Custom HTML block. No external files, libraries, cookies or tracking. -->\n<div id=\"ribs-conv\" role=\"form\" aria-label=\"Speed converter\">\n  <style>\n    #ribs-conv{--c1:#0b3d5c;max-width:480px;margin:0 auto;padding:12px;background:#f4f8fb;border:1px solid #d3e0ea;border-radius:8px;box-sizing:border-box;font-family:inherit;color:#1a1a1a;line-height:1.3}\n    #ribs-conv *{box-sizing:border-box}\n    #ribs-conv h3{margin:0 0 8px;padding:0;font-size:1.1em;color:var(--c1)}\n    #ribs-conv .rc-note,#ribs-conv .rc-brand{margin:8px 0 0;font-family:inherit;font-size:.75em;color:#666;text-align:center;letter-spacing:normal}\n    #ribs-conv .rc-brand{margin-top:2px}\n    #ribs-conv .rc-row{display:flex;gap:8px}\n    #ribs-conv .rc-row input{flex:1 1 40%;min-width:0}\n    #ribs-conv .rc-row select{flex:1 1 60%;min-width:0}\n    #ribs-conv input,#ribs-conv select{margin:0;padding:8px;font-size:1em;height:auto;border:2px solid #b8c9d6;border-radius:6px;background:#fff;color:#1a1a1a}\n    #ribs-conv input:focus,#ribs-conv select:focus{outline:2px solid var(--c1);outline-offset:1px}\n    #ribs-conv .rc-out{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin:8px 0 0;padding:0;list-style:none}\n    #ribs-conv .rc-out li{margin:0;padding:6px 2px;background:#fff;border:1px solid #d3e0ea;border-radius:6px;text-align:center}\n    #ribs-conv .rc-out b{display:block;font-size:1.15em;color:var(--c1);overflow-wrap:anywhere}\n    #ribs-conv .rc-out span{font-size:.75em;color:#555}\n    #ribs-conv .rc-err{margin:6px 0 0;color:#b00020 !important;font-size:.85em;font-weight:600}\n    #ribs-conv input[aria-invalid=true]{border-color:#b00020 !important}\n    @media(max-width:380px){#ribs-conv .rc-out{grid-template-columns:repeat(2,1fr)}}\n  <\/style>\n\n  <h3>Speed converter<\/h3>\n\n  <div class=\"rc-row\">\n    <input id=\"rc-val\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" maxlength=\"10\" value=\"25\" aria-label=\"Speed value\">\n    <select id=\"rc-unit\" aria-label=\"Unit\">\n      <option value=\"kn\" selected>knots (kn)<\/option>\n      <option value=\"kmh\">kilometres per hour (km\/h)<\/option>\n      <option value=\"mph\">miles per hour (mph)<\/option>\n      <option value=\"ms\">metres per second (m\/s)<\/option>\n    <\/select>\n  <\/div>\n\n  <div class=\"rc-err\" id=\"rc-err\" role=\"alert\" style=\"display:none\"><\/div>\n\n  <ul class=\"rc-out\" aria-live=\"polite\">\n    <li><b id=\"rc-kn\">\u2013<\/b><span>knots<\/span><\/li>\n    <li><b id=\"rc-kmh\">\u2013<\/b><span>km\/h<\/span><\/li>\n    <li><b id=\"rc-mph\">\u2013<\/b><span>mph<\/span><\/li>\n    <li><b id=\"rc-ms\">\u2013<\/b><span>m\/s<\/span><\/li>\n  <\/ul>\n\n  <p class=\"rc-note\">1 knot = 1 nautical mile per hour = 1.852 km\/h. Indicative values, not for navigation.<\/p>\n  <p class=\"rc-brand\">RIBsONLY.com &#8211; Home of the Rigid Inflatable Boat<\/p>\n\n  <script>\n  (function(){\n    var d=document,root=d.getElementById('ribs-conv');\n    if(!root)return;\n    var inp=d.getElementById('rc-val'),sel=d.getElementById('rc-unit'),err=d.getElementById('rc-err');\n    var F={kn:1.852,kmh:1,mph:1.609344,ms:3.6}; \/\/ factor to km\/h\n    var ids=['kn','kmh','mph','ms'];\n    function show(v){\n      ids.forEach(function(k){\n        d.getElementById('rc-'+k).textContent=v===null?'\u2013':(v\/F[k]).toLocaleString('en-GB',{maximumFractionDigits:2}); \/\/ textContent: no HTML injection\n      });\n    }\n    function setErr(m){\n      err.textContent=m;\n      err.style.display=m?'block':'none';\n      if(m){inp.setAttribute('aria-invalid','true');}else{inp.removeAttribute('aria-invalid');}\n    }\n    function calc(){\n      var raw=inp.value.trim().replace(',','.');\n      setErr('');\n      if(raw===''){show(null);return;}\n      if(!\/^([0-9]{1,6}([.][0-9]{0,4})?|[.][0-9]{1,4})$\/.test(raw)){setErr('Please enter a positive number (e.g. 25 or 25.5).');show(null);return;}\n      var n=parseFloat(raw);\n      if(!isFinite(n)||n>100000){setErr('Value too large.');show(null);return;}\n      show(n*(F[sel.value]||1));\n    }\n    inp.addEventListener('input',function(){\n      var clean=inp.value.replace(\/[^0-9.,]\/g,''); \/\/ only digits, comma and dot (also covers paste)\n      var i=clean.search(\/[.,]\/);\n      if(i>-1)clean=clean.slice(0,i+1)+clean.slice(i+1).replace(\/[.,]\/g,''); \/\/ only one comma or dot\n      if(clean!==inp.value)inp.value=clean;\n      calc();\n    });\n    sel.addEventListener('change',calc);\n    calc();\n  })();\n  <\/script>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Specs<\/h2>\n\n\n\n<!--more-->\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">Model<\/th><th class=\"has-text-align-left\" data-align=\"left\">SeaQuest 10 OPEN<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Length overall<\/td><td class=\"has-text-align-left\" data-align=\"left\">9.98 m<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Beam overall<\/td><td class=\"has-text-align-left\" data-align=\"left\">2.90 m<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Tube diameter<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.50 \/ 0.46 m<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Tube compartments<\/td><td class=\"has-text-align-left\" data-align=\"left\">6<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Tube material<\/td><td class=\"has-text-align-left\" data-align=\"left\">ORCA 1670<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Maximum engine power<\/td><td class=\"has-text-align-left\" data-align=\"left\">800 hp (2 \u00d7 400 hp)<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Minimum engine power<\/td><td class=\"has-text-align-left\" data-align=\"left\">400 hp<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Self-draining deck<\/td><td class=\"has-text-align-left\" data-align=\"left\">Yes<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Bow deadrise<\/td><td class=\"has-text-align-left\" data-align=\"left\">52\u00b0<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Transom deadrise<\/td><td class=\"has-text-align-left\" data-align=\"left\">25\u00b0<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Fuel capacity<\/td><td class=\"has-text-align-left\" data-align=\"left\">550 L (300 + 250 L)<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Freshwater capacity<\/td><td class=\"has-text-align-left\" data-align=\"left\">120 L<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Dry weight<\/td><td class=\"has-text-align-left\" data-align=\"left\">2,500 kg<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Design category<\/td><td class=\"has-text-align-left\" data-align=\"left\">C*<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/seaquestrib.gr\/index.html\" target=\"_blank\" rel=\"noreferrer noopener\">source<\/a>, data may vary<br>* <a href=\"https:\/\/ribsonly.com\/2\/ce-categories-for-ribs-explained\/\">discover what this means<\/a><\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-top is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:15%\">\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"100\" height=\"100\" src=\"https:\/\/ribsonly.com\/2\/wp-content\/uploads\/2026\/10\/headshot-real-100.webp\" alt=\"Karel, RIB advocate @ RIBsONLY.com - Home of the Rigid Inflatable Boat\" class=\"wp-image-47874\" srcset=\"https:\/\/ribsonly.com\/2\/wp-content\/uploads\/2026\/10\/headshot-real-100.webp 100w, https:\/\/ribsonly.com\/2\/wp-content\/uploads\/2026\/10\/headshot-real-100-84x84.webp 84w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:85%\">\n<p class=\"wp-block-paragraph\" style=\"font-size:13px\"><strong>Karel, RIB Advocate<\/strong><br>Karel Overlaet is owner, founder, and editor-in-chief of RIBsONLY.com, Home of the Rigid Inflatable Boat. A passionate RIB owner himself, he curates the web&#8217;s largest collection of RIB news and videos. What started as a passion project has grown into a knowledge hub with lots of news and 50+ in-depth guides for beginners and experts alike. He also created <a href=\"https:\/\/ribmanufacturerlist.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">RIBManufacturerList<\/a>, a unique global directory of all active RIB brands.<\/p>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n","protected":false},"excerpt":{"rendered":"<p>New Seaquest 10 Open: A Fast 10-Metre Family RIB The SeaQuest 10 Open is a 10-metre RIB built for fast cruising, family comfort and practical overnight stays. Powered by twin Mercury 300 hp V8 outboards, the test boat reached an impressive 53 knots at 5,800 rpm. It&#8217;s not &#8220;all new&#8221;. Its deep-V hull, shared with SeaQuest\u2019s cabin and semi-cabin models,&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[241,11,6],"tags":[],"class_list":["post-47790","post","type-post","status-publish","format-standard","hentry","category-seaquest","category-mercury","category-video"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/ribsonly.com\/2\/wp-json\/wp\/v2\/posts\/47790","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ribsonly.com\/2\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ribsonly.com\/2\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ribsonly.com\/2\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ribsonly.com\/2\/wp-json\/wp\/v2\/comments?post=47790"}],"version-history":[{"count":37,"href":"https:\/\/ribsonly.com\/2\/wp-json\/wp\/v2\/posts\/47790\/revisions"}],"predecessor-version":[{"id":47935,"href":"https:\/\/ribsonly.com\/2\/wp-json\/wp\/v2\/posts\/47790\/revisions\/47935"}],"wp:attachment":[{"href":"https:\/\/ribsonly.com\/2\/wp-json\/wp\/v2\/media?parent=47790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ribsonly.com\/2\/wp-json\/wp\/v2\/categories?post=47790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ribsonly.com\/2\/wp-json\/wp\/v2\/tags?post=47790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}