{"id":26682,"date":"2026-08-04T13:12:06","date_gmt":"2026-08-04T12:12:06","guid":{"rendered":"https:\/\/coxmarine.com\/?p=26682"},"modified":"2026-08-04T13:14:01","modified_gmt":"2026-08-04T12:14:01","slug":"south-korean-seaweed-harvesting-fleets-report-fuel-savings-of-up-to-50-with-cox-marine-diesel-outboards","status":"publish","type":"post","link":"https:\/\/coxmarine.com\/apac\/news\/south-korean-seaweed-harvesting-fleets-report-fuel-savings-of-up-to-50-with-cox-marine-diesel-outboards\/","title":{"rendered":"South Korean Seaweed Harvesting Fleets Report Fuel Savings of up to 50% with Cox Marine Diesel Outboards"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.7&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p><strong>Shoreham-by-Sea, UK \u2013 04 August 2026<\/strong> \u2013 Cox Marine has received market feedback from South Korea indicating that its diesel outboard technology is delivering even greater fuel efficiency benefits than expected in the country&#8217;s expanding seaweed harvesting industry, with operators reporting fuel savings of up to 50% compared with gasoline alternatives.<\/p>\n<p><strong>Sungho Hong of Soungjin Marine<\/strong>, Cox Marine&#8217;s distributor in South Korea, who works closely with commercial vessel operators serving the expanding seaweed harvesting sector said:<\/p>\n<p>&#8220;Fuel economy is number one. Compared to gasoline engines, the biggest improvement we&#8217;ve seen is around 50%.&#8221;<\/p>\n<p>&#8220;Commercial operators often work with heavily loaded vessels,&#8221; he explained. &#8220;Fuel consumption increases significantly with gasoline engines under load, whereas diesel engines consume much less fuel. They are working less hard for the same payload.&#8221;<\/p>\n<p><strong>Hugh Hudleston, Global Business Development Director at Cox Marine<\/strong> said:<\/p>\n<p>&#8220;We typically cite fuel savings of around 30% compared with equivalent gasoline outboards. It&#8217;s encouraging to see feedback from South Korea suggesting even greater gains in demanding commercial applications where vessels are heavily loaded and fuel costs are a key consideration.&#8221;<\/p>\n<p>The fuel savings are particularly valuable for South Korea&#8217;s seaweed harvesting industry, which is experiencing increased demand as products such as kimbap continue to gain popularity both domestically and internationally.<\/p>\n<p>According to Hong, vessels are also becoming larger and more powerful as operators travel further offshore in search of seaweed.<\/p>\n<p>&#8220;There is growing demand for power because the vessels are getting bigger,&#8221; he said. &#8220;The largest are around 28 tonnes and typically have one inboard engine.&#8221;<\/p>\n<p>With some commercial vessels operating with engine outputs of up to 1,800hp, operators require propulsion systems that can deliver the torque needed to move heavy loads efficiently.<\/p>\n<p>The market feedback highlights the growing advantages of diesel outboard technology in demanding commercial applications, where fuel costs have a direct impact on profitability. By combining high torque with exceptional fuel economy, Cox Marine&#8217;s diesel outboards are helping operators reduce running costs while maintaining the performance needed for productive offshore operations.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cox Marine has received market feedback from South Korea indicating that its diesel outboard technology is delivering even greater fuel efficiency benefits than expected in the country&#8217;s expanding seaweed harvesting industry, with operators reporting fuel savings of up to 50% compared with gasoline alternatives.<\/p>\n","protected":false},"author":388,"featured_media":26684,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"\u00a0\r\n<h5><span class=\"TextRun SCXW152741083 BCX0\" lang=\"EN-GB\" xml:lang=\"EN-GB\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW152741083 BCX0\">By\u00a0<\/span><\/span><strong><span class=\"TextRun SCXW152741083 BCX0\" lang=\"EN-GB\" xml:lang=\"EN-GB\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW152741083 BCX0\">Hugh\u00a0<\/span><span class=\"NormalTextRun SpellingErrorV2Themed SCXW152741083 BCX0\">Hudelston<\/span><\/span><span class=\"EOP Selected SCXW152741083 BCX0\" data-ccp-props=\"{}\">\u00a0<\/span><\/strong><\/h5>\r\n\u00a0\r\n\r\nOver the past few years, I\u2019ve had a front\u2011row seat to one of the fastest periods of transformation seen in maritime defence.\r\n\r\nChange that used to unfold slowly (over decades, even) is now happening in the space of a few programme cycles. Whether I\u2019m in conversation with operators, integrators, procurement teams, or engineering partners, the message is the same: mission profiles are evolving, operational expectations are rising, and autonomy is reshaping how fleets think about capability.\r\n\r\nWhat has become increasingly clear to me is that propulsion, once almost a background component of naval planning, now plays a central role in shaping what\u2019s possible.\r\n\r\n\u00a0\r\n<h2>Evolving Defence Requirements for Marine Propulsion Systems<\/h2>\r\nMy work across defence programmes has highlighted a decisive shift away from the traditional, workforce-heavy platforms toward more flexible and lower-risk options. Defence leadership across multiple nations, including <a href=\"https:\/\/www.royalnavy.mod.uk\/news\/2025\/september\/11\/20250911-first-sea-lord-outlines-future-of-the-royal-navy-at-dsei\">recent direction from the UK First Sea Lord<\/a>, has signalled that autonomous and remotely operated systems will play a central role in future maritime operations.\r\n\r\nNavies and agencies are facing new challenges, threats and restrictions, all of which demand faster deployment, lighter logistical burdens, and greater operational resilience.\r\n\r\nFrom my own perspective, three priorities consistently shape discussions:\r\n<ul>\r\n \t<li>Fuel source and the inherent safety of diesel and alignment to a single fuel<\/li>\r\n \t<li>Product experience with integration support, with simplified and robust logistics<\/li>\r\n \t<li>Durability \u2013 whether the product withstands what the operator demands of it<\/li>\r\n<\/ul>\r\n\u00a0\r\n<h2>The Acceleration of USVs from Niche to Mainstream<\/h2>\r\nIn the past eighteen months, the momentum behind USVs has only intensified. Across the programmes we\u2019ve been involved in, the progression from concept to prototype to sea trials is happening far faster than traditional procurement frameworks typically allow.\r\n\r\nUSVs have moved from interesting future concepts to essential capability enablers. Defence customers now expect propulsion solutions that can keep pace with rapid iteration, autonomous control systems and high\u2011duty cycles, and their expectations demand a different level of responsiveness from manufacturers like us.\r\n\r\nHaving been involved in early proof-of-concept activities over the last few years, we pre-emptively hosted a dedicated USV conference for our global distributors in early 2025. Showcasing not just the technology, but the operational implications and how Cox Marine could support the rapid growth in this market.\r\n\r\nBringing together so many partners and our learnings from different regions, all aligned around the same accelerating trend, reinforced the idea that USVs were no longer a niche. They are becoming central to future maritime strategy.\r\n\r\nThe discussions at the conference around integration, endurance, autonomy, logistics, and durability have shaped our engagement with both distributors and end\u2011users. It also confirmed that our role wasn\u2019t just to supply engines; it was to support a fast\u2011moving operational transformation.\r\n\r\n\u00a0\r\n<h2>Why USVs Place New Demands on Propulsion Systems<\/h2>\r\nThrough close collaboration with USV integrators, we\u2019ve seen how fundamentally different their requirements are from those of crewed craft. They demand:\r\n<ul>\r\n \t<li>Sustained high utilisation<\/li>\r\n \t<li>Extended duty cycles,<\/li>\r\n \t<li>The ability to operate far from support hubs<\/li>\r\n \t<li>Propulsion systems that require minimal on\u2011site intervention<\/li>\r\n<\/ul>\r\n\u00a0\r\n\r\nOn a crewed vessel, propulsion issues are challenging. On a USV, they end the mission.\r\n\r\nThat reality shapes every integration discussion. It also explains why interest in\u202f<a href=\"https:\/\/coxmarine.com\/government\/usvs\/\">diesel outboards\u202ffor USVs<\/a>\u202fhas grown so rapidly: they offer predictable performance, strong reliability under load, and simplified maintenance, as well as the ability to quickly swap. These characteristics are all critical for autonomous or remotely operated platforms.\r\n\r\n\u00a0\r\n<h2>How Cox Marine Is Supporting the Rise of USVs<\/h2>\r\nOne of Cox Marine\u2019s advantages in the market is exposure to active and in\u2011development USV programmes globally. Being embedded in these projects provides learnings you simply don\u2019t get from a distance. We\u2019ve gained insights into integration friction points, mission profiles, wear patterns and the realities of supporting platforms that may run for thousands of hours in highly varied environments, through the dedication of resources within the team to the technical integration of our product with fleet customers.\r\n\r\nEvery trial and every operator conversation feeds directly into how we refine our products and service models. This continuous loop of experience and improvement is accelerating our pace of development to match the sector\u2019s rapid expansion. Where there have been issues, we have responded, adapted our product, and utilised our \u201cbuilt from the ground up\u201d proprietary design and close contact with our supply chain to iterate and refine a product that is fit for purpose.\r\n\r\n\u00a0\r\n<h3>Mission Assured Through Autonomous Capability with Cox Marine<\/h3>\r\nAs defence organisations embrace a new era of maritime operations, reliable, high\u2011performance propulsion has become indispensable. My work with operators and integrators reinforces this daily: propulsion directly influences endurance, readiness, survivability and mission success.\r\n\r\nFor anyone exploring how diesel outboards can support emerging USV or defence requirements, Cox Marine is open to sharing what we\u2019ve learned and discussing the opportunities ahead. The landscape is moving fast, and I\u2019ve never been more energised by the role we can play in shaping it.\r\n\r\n\u00a0\r\n\r\n<img class=\"alignnone wp-image-26014 \" src=\"https:\/\/coxmarine.com\/wp-content\/uploads\/2026\/03\/hugh-1.jpg\" alt=\"hugh hudleston\" width=\"150\" height=\"138\" \/>\r\n\r\n<strong>About the Author<\/strong>\r\n\r\nHugh Huddleston is Global Business Development Director at Cox Marine, driving global growth and partnerships while championing advanced diesel outboard technology for government, commercial and high\u2011demand maritime operators worldwide. Passionate about supporting operators in demanding maritime environments, Hugh plays a key role in advancing Cox Marine\u2019s presence across emerging and developing markets, where reliability, safety and mission assurance is critical.\r\n\r\n\u00a0\r\n\r\n\u00a0\r\n\r\n\u00a0\r\n\r\n\u00a0","_et_gb_content_width":"","footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[8],"tags":[],"class_list":["post-26682","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/coxmarine.com\/apac\/wp-json\/wp\/v2\/posts\/26682","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/coxmarine.com\/apac\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coxmarine.com\/apac\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coxmarine.com\/apac\/wp-json\/wp\/v2\/users\/388"}],"replies":[{"embeddable":true,"href":"https:\/\/coxmarine.com\/apac\/wp-json\/wp\/v2\/comments?post=26682"}],"version-history":[{"count":5,"href":"https:\/\/coxmarine.com\/apac\/wp-json\/wp\/v2\/posts\/26682\/revisions"}],"predecessor-version":[{"id":26692,"href":"https:\/\/coxmarine.com\/apac\/wp-json\/wp\/v2\/posts\/26682\/revisions\/26692"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/coxmarine.com\/apac\/wp-json\/wp\/v2\/media\/26684"}],"wp:attachment":[{"href":"https:\/\/coxmarine.com\/apac\/wp-json\/wp\/v2\/media?parent=26682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coxmarine.com\/apac\/wp-json\/wp\/v2\/categories?post=26682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coxmarine.com\/apac\/wp-json\/wp\/v2\/tags?post=26682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}