{"id":17134,"date":"2025-09-19T20:03:43","date_gmt":"2025-09-19T20:03:43","guid":{"rendered":"https:\/\/krogragg.com\/?p=17134"},"modified":"2025-09-19T20:03:43","modified_gmt":"2025-09-19T20:03:43","slug":"steel-cut-for-innovative-french-patrol-vessel","status":"publish","type":"post","link":"https:\/\/krogragg.com\/?p=17134","title":{"rendered":"Steel cut for innovative French patrol vessel"},"content":{"rendered":"<p>    Steel cut for innovative French patrol vessel<br \/>\n \t<BR><br \/>\n<BR><\/BR><br \/>\n    <!-- no image --><br \/>\n \t<BR><br \/>\n<BR><\/BR><\/p>\n<div>\n<p>French naval architect firm Mauric reports that construction of an innovative new wind-assisted offshore patrol vessel ordered in January has reached a major milestone. Yesterday, the first steel for the vessel was cut at the <a href=\"https:\/\/socarenam.com\/en\/\">Socarenam<\/a> shipyard in Boulogne-sur-Mer.<\/p>\n<figure class=\"wp-block-embed alignleft is-type-wp-embed is-provider-marine-log wp-block-embed-marine-log\">\n<div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"ULEs0Vj28g\"><p><a href=\"https:\/\/www.marinelog.com\/news\/new-energy-efficient-french-offshore-patrol-vessel\/\">New energy-efficient French offshore patrol vessel<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" title=\"\u201cNew energy-efficient French offshore patrol vessel\u201d \u2014 Marine Log\" src=\"https:\/\/www.marinelog.com\/news\/new-energy-efficient-french-offshore-patrol-vessel\/embed\/#?secret=hp0EevnXPB#?secret=ULEs0Vj28g\" data-secret=\"ULEs0Vj28g\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div>\n<\/figure>\n<p>As we <a href=\"https:\/\/www.marinelog.com\/news\/new-energy-efficient-french-offshore-patrol-vessel\/\">reported when the contract was awarded<\/a>, the patrol vessel is being built for France\u2019s Directorate General for Maritime Affairs, Fisheries and Aquaculture (DGAMPA) and will combine an innovative wind-assisted propulsion solution with a diesel-electric hybrid propulsion system with IMO TIER III compliant engines.<\/p>\n<p>Steel cutting marked the transition from design phase to active construction of this innovative vessel and came after Mauric\u2019s team of naval architects and marine engineers has completed the detailed arrangement study of the vessel, including an optimization loop for optimal sail positioning. This phase also enabled the finalization of active and passive stabilization systems development, through seakeeping calculatons carried out to optimize the anti-roll tank with free surface effects and active fin stabilizers.<\/p>\n<p>Computational fluid dynamics (CFD) optimization of the bulbous bow has refined the hull\u2019s hydrodynamic performance. These CFD studies have optimized resistance through the water and defined the vessel\u2019s active trim control system underway, confirming a hybrid cruising speed of 10 knots and maximum speed exceeding 18 knots. This configuration ensures the energy efficiency sought for this vessel with its reduced environmental footprint.<\/p>\n<p>The design phase also established the assembly sequence in eight modular blocks. The image below illustrates the detailed structure of the first block, located in the forward third of the vessel\u2019s hull.<\/p>\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" width=\"700\" height=\"386\" src=\"https:\/\/i0.wp.com\/www.marinelog.com\/wp-content\/uploads\/2025\/09\/diag.jpg?resize=700%2C386&#038;ssl=1\" alt=\"French patrol vessel\" class=\"wp-image-103471\" srcset=\"https:\/\/www.marinelog.com\/wp-content\/uploads\/2025\/09\/diag.jpg 700w, https:\/\/www.marinelog.com\/wp-content\/uploads\/2025\/09\/diag-300x165.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\"><figcaption class=\"wp-element-caption\"><em>3D Hull Block \u00a9MAURIC<\/em><\/figcaption><\/figure>\n<p>With first steel now cut, the project is now on track for the vessel\u2019s delivery in the second half of 2027,<\/p>\n<h4 class=\"wp-block-heading\" id=\"h-key-features\">Key features<\/h4>\n<p>Crew and Capacity<br \/>Crew : 16 persons<br \/>Special Forces : 4 persons<br \/>Autonomy : 12 days<br \/>Activity : Up to 200 days at sea per year<\/p>\n<h4 class=\"wp-block-heading\" id=\"h-technical-specifications\">Technical Specifications<\/h4>\n<p>Length: 53.70 m<br \/>Construction: Steel hull, aluminium superstructure<br \/>Propulsion: Diesel-electric hybrid system with wind-assisted propulsion<br \/>Maximum speed: 17 kts at 85% MCR, electric : 10 kts<br \/>Range: 3,600 nm at 12 kts<br \/>Nautical equipment: 2 semi-rigid inflatable boats of 6.50 m (speed: 35 kts)<\/p>\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"490\" src=\"https:\/\/i0.wp.com\/www.marinelog.com\/wp-content\/uploads\/2025\/09\/btmMauric.jpg?resize=700%2C490&#038;ssl=1\" alt=\"French patrol vessel\" class=\"wp-image-103473\" srcset=\"https:\/\/www.marinelog.com\/wp-content\/uploads\/2025\/09\/btmMauric.jpg 700w, https:\/\/www.marinelog.com\/wp-content\/uploads\/2025\/09\/btmMauric-300x210.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\"><figcaption class=\"wp-element-caption\"><em>\u00a9MAURIC<\/em><\/figcaption><\/figure>\n<p>The post <a href=\"https:\/\/www.marinelog.com\/news\/steel-cut-for-innovative-french-patrol-vessel\/\">Steel cut for innovative French patrol vessel<\/a> appeared first on <a href=\"https:\/\/www.marinelog.com\/\">Marine Log<\/a>.<\/p>\n<\/div>\n<p> \t<BR><br \/>\n <BR><\/BR><br \/>\n    Nick Blenkey<br \/>\n \t<BR><br \/>\n<BR><\/BR><br \/>\n<a href=\"https:\/\/www.marinelog.com\/news\/steel-cut-for-innovative-french-patrol-vessel\/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=steel-cut-for-innovative-french-patrol-vessel\">Go to marinelog<\/a><br \/>\n \t<BR><br \/>\n <BR><\/BR><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Steel cut for innovative French patrol vessel French naval architect firm Mauric reports that construction of an innovative new wind-assisted offshore patrol vessel ordered in January has reached a major milestone. Yesterday, the first steel for the vessel was cut at the Socarenam shipyard in Boulogne-sur-Mer. New energy-efficient French offshore patrol vessel As we reported [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3649,2006,192,2007,199,437,6330,6331],"tags":[193],"class_list":["post-17134","post","type-post","status-publish","format-standard","hentry","category-boulogne-sur-mer","category-dgampa","category-marinelog","category-mauric","category-news","category-shipyard","category-socarenam","category-wind-assisted","tag-marinelog"],"_links":{"self":[{"href":"https:\/\/krogragg.com\/index.php?rest_route=\/wp\/v2\/posts\/17134"}],"collection":[{"href":"https:\/\/krogragg.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/krogragg.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/krogragg.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/krogragg.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17134"}],"version-history":[{"count":0,"href":"https:\/\/krogragg.com\/index.php?rest_route=\/wp\/v2\/posts\/17134\/revisions"}],"wp:attachment":[{"href":"https:\/\/krogragg.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/krogragg.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/krogragg.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}