{"id":20885,"date":"2019-05-06T09:48:23","date_gmt":"2019-05-06T07:48:23","guid":{"rendered":"https:\/\/www.tipandshaft.com\/?p=20885"},"modified":"2020-06-30T10:41:14","modified_gmt":"2020-06-30T08:41:14","slug":"imoca-its-all-about-the-foils","status":"publish","type":"post","link":"https:\/\/sailorz.com\/en\/imoca-en\/imoca-its-all-about-the-foils\/","title":{"rendered":"Imoca: It&#8217;s all about the foils"},"content":{"rendered":"<p><em>At the start of the last Vend\u00e9e Globe in 2016 there were\u00a0<a href=\"https:\/\/www.vendeeglobe.org\/fr\/edition-2016\/classement-et-donnees-de-course?utm_source=Tip+%26+Shaft&amp;utm_campaign=c564efd99e-EMAIL_CAMPAIGN_2019_04_23_02_26_COPY_01&amp;utm_medium=email&amp;utm_term=0_af455e7661-c564efd99e-\" target=\"_blank\" rel=\"noopener noreferrer\">seven of the 29 IMOCAs with foils<\/a>. In last year&#8217;s 2018 Route du Rhum Destination Guadeloupe\u00a0<a href=\"https:\/\/www.routedurhum.com\/fr\/skipper?classe=Imoca&amp;utm_source=Tip+%26+Shaft&amp;utm_campaign=c564efd99e-EMAIL_CAMPAIGN_2019_04_23_02_26_COPY_01&amp;utm_medium=email&amp;utm_term=0_af455e7661-c564efd99e-\" target=\"_blank\" rel=\"noopener noreferrer\">half of the IMOCAs which raced had foils<\/a>. And in the upcoming 2019 Transat Jacques Vabre more than\u00a0<a href=\"https:\/\/www.transatjacquesvabre.org\/fr\/skippers\/imoca?utm_source=Tip+%26+Shaft&amp;utm_campaign=c564efd99e-EMAIL_CAMPAIGN_2019_04_23_02_26_COPY_01&amp;utm_medium=email&amp;utm_term=0_af455e7661-c564efd99e-\" target=\"_blank\" rel=\"noopener noreferrer\">two thirds of the fleet will have foils<\/a>.\u00a0In less than four years foils have become the rule rather than the exception. But they are still very much in the early stages of development.\u00a0Less than one week before the start of the\u00a0<a href=\"https:\/\/www.bermudes1000race.com\/?utm_source=Tip+%26+Shaft&amp;utm_campaign=c564efd99e-EMAIL_CAMPAIGN_2019_04_23_02_26_COPY_01&amp;utm_medium=email&amp;utm_term=0_af455e7661-c564efd99e-\" target=\"_blank\" rel=\"noopener noreferrer\">Bermudes 1000 Race<\/a>, the first of the\u00a0<a href=\"https:\/\/www.imoca.org\/en\/races\/\" target=\"_blank\" rel=\"noopener noreferrer\">2019 IMOCA season<\/a>, we review tips and shafts, by\u00a0<a href=\"https:\/\/sailorz.com\/en\/\" target=\"_blank\" rel=\"noopener noreferrer\">Tip &amp; Shaft<\/a>.\u00a0<\/em><\/p>\n<p><strong>Generations 1 and 2: The early days<\/strong><br \/>\nIn terms of IMOCA foils the most experienced designers are unquestionably\u00a0<a href=\"https:\/\/vplp.fr\/\" target=\"_blank\" rel=\"noopener noreferrer\">VPLP<\/a>\u00a0and\u00a0<a href=\"http:\/\/www.guillaumeverdier.com\/en\/\" target=\"_blank\" rel=\"noopener noreferrer\">Guillaume Verdier<\/a>. After working on the basics of the concept together, since the last America&#8217;s Cup\u00a0<strong>they have been working independently of each other<\/strong>. On the Cup VPLP worked with\u00a0Artemis while Verdier won with Emirates Team New Zealand.\u00a0&#8220;For generation 1, we were trying to lift the boats knowing that we would be penalized at certain speeds,&#8221; explains Vincent Lauriot-Pr\u00e9vost. The goal of the generation 2 that immediately followed [such as those which were on the winner of the 2016 Vend\u00e9e Globe, Ed], was to limit the loss, especially upwind.<\/p>\n<p>Dubbed &#8220;Dali&#8221; this S shaped generation, like mustaches, follow the same themes\u00a0but with different small variations. These are either on the original foil assisted boats from VPLP \/ Verdiers or those which subsequently have had foils added,\u00a0<strong>Prysmian Group\u00a0<\/strong>Giancarlo Pedote (formerly UCAR-StMichel),\u00a0<strong>Ma\u00eetre Coq<\/strong>\u00a0Yannick Bestaven (formerly Safran II), Louis Burton\u00a0<strong>Bureau Vall\u00e9e<\/strong>\u00a0(formerly Banque Populaire VIII) &#8211; Burton\u00a0announced\u00a0the construction of a new pair of foils next winter -,\u00a0<strong>Newrest Arts &amp; Fen\u00eatres<\/strong>\u00a0by Fabrice Amedeo (formerly No Way Back),\u00a0<strong>Malizia II-Monaco Yacht Club<\/strong>\u00a0of Boris Herrmann (formerly Edmond de Rothschild).\u00a0As for the current VPLP\/Verdier\u00a0<strong>Hugo Boss<\/strong>\u00a0went furthest in terms of the surface area of the foils with a more stretched out shape,\u00a0two years later Alex Thomson showed his overwhelming superiority downwind in the Route du Rhum.<\/p>\n<p>Among this second generation is Sam Davies&#8217;\u00a0<strong>Initiatives Coeur<\/strong>\u00a0which of course was previously Ma\u00eetre Coq of J\u00e9r\u00e9mie Beyou (ex- Banque Populaire VII, ex-Foncia). It dates back to 2010 but during the winter of 2015-2016, prior to Beyou&#8217;s Vend\u00e9e Globe, benefited from the addition of foils designed by the New Zealander\u00a0<a href=\"https:\/\/www.linkedin.com\/in\/nick-holroyd-226ab326\/?originalSubdomain=uk\" target=\"_blank\" rel=\"noopener noreferrer\">Nick Holroyd<\/a>\u00a0(variously with Emirates Team New Zealand, Softbank Japan Team and now at Ineos Team UK). After the solo round the world race, Initiatives Coeur added rake controls for 2018 and then this winter fitting brand new foils (see below).<\/p>\n<p><strong>Charal and Hugo Boss: from generation 3 to generation 4<\/strong><br \/>\nSummer 2018 launched\u00a0<strong>Charal<\/strong>&#8216;s foils are for the &#8220;the first boat designed around its foils,&#8221;\u00a0says Vincent Lauriot-Pr\u00e9vost. The hull shape is much more influenced by the effective reduction in drag and\u00a0<a href=\"http:\/\/www.guillaumeverdier.com\/en\/foils-lessons\/\" target=\"_blank\" rel=\"noopener noreferrer\">the cant of the keel<\/a>\u00a0(which adversely affects\u00a0the action of the foils) has been reduced. Launched at the end of the summer\u00a0<strong>Charal<\/strong>\u00a0has proved very potent with its huge bent foils that are angled to the tip, which allow the boat to lift for longer, sustained periods and to accelerate hard.\u00a0<a href=\"https:\/\/www.facebook.com\/charalsailingteam\/photos\/a.222635141104887\/2153933261308389\/?type=3&amp;theater&amp;utm_source=Tip+%26+Shaft&amp;utm_campaign=c564efd99e-EMAIL_CAMPAIGN_2019_04_23_02_26_COPY_01&amp;utm_medium=email&amp;utm_term=0_af455e7661-c564efd99e-\" target=\"_blank\" rel=\"noopener noreferrer\">Too strong?<\/a>\u00a0&#8220;It is a long learning curve,&#8221; admits\u00a0<a href=\"https:\/\/www.linkedin.com\/in\/pierre-fran%C3%A7ois-dargnies-a2904b55\/?originalSubdomain=fr&amp;utm_source=Tip+%26+Shaft&amp;utm_campaign=c564efd99e-EMAIL_CAMPAIGN_2019_04_23_02_26_COPY_01&amp;utm_medium=email&amp;utm_term=0_af455e7661-c564efd99e-\" target=\"_blank\" rel=\"noopener noreferrer\">Pierre-Fran\u00e7ois Dargnies<\/a>, the technical director of the Charal team. &#8220;But we have made about thirty successful passages since the Route du Rhum and the boat will race the Transat Jacques Vabre with this pair of foils. For the Vend\u00e9e Globe, we are already preparing our V2.&#8221;<\/p>\n<p><strong>The new foils for Initiatives Coeur<\/strong><br \/>\nVPLP promise&#8230;&#8221;The foils of the new\u00a0<strong>Hugo Boss\u00a0<\/strong>will look like nothing we have already seen&#8221; &#8230; so, logically, nothing like those which have just been\u00a0<a href=\"https:\/\/www.facebook.com\/initiativescoeur\/videos\/844874692529279\/?__xts__[0]=68.ARBA0xwenv_LANy_65H-F_5WGHcmgrvmcaH8nYzXlE5Vs_Zhhk3NeIHfuNJOH_cV-IO1jWt3jjOE5ffdu3wOZ3AIQcBypZv7zAK6ZjlXyoITqZ2mNJc3i5nVs9hD2lSyZdsEHPkhJgrEpWVHg9_CuFCCAgbJZpFqDouLiF_z-ooFFsNK2miKjJMTjCwJ2I_eq2RU6a4l4l7d6-EPHX_WYGWTaQPRDiIDwvqjO08dPFXPaqD7f5XrPwlF1aYLi9Dgnla0A6KN6-dF1RnNvCMerXG235M1Hu9KKIgNkhwGYplHOnlNI73e4pWqBWztYzgyjYcIJkKAHLEIY79e-iIz4U-rDIIhBZRQcMa0CQ&amp;__tn__=-R&amp;utm_source=Tip+%26+Shaft&amp;utm_campaign=c564efd99e-EMAIL_CAMPAIGN_2019_04_23_02_26_COPY_01&amp;utm_medium=email&amp;utm_term=0_af455e7661-c564efd99e-\" target=\"_blank\" rel=\"noopener noreferrer\">revealed<\/a>\u00a0last week on\u00a0<strong>Initiatives Coeur<\/strong>. Still, the new, huge lifting planes, designed by Guillaume Verdier for Sam Davies&#8217; IMOCA are also very typical lengthening the key horizontal plane with a very tapered tip &#8211; which appears almost flexible at its end &#8211;\u00a0 there is negligible anti-drift action.\u00a0&#8220;This generation has been designed to be more stable, to work earlier and to lift more at slower angles. But the performance potential is\u00a0 huge, there are even VPP values \u200b\u200byou just do not want to believe!&#8221; explains\u00a0<a href=\"https:\/\/www.linkedin.com\/in\/david-sineau-2540b645\/?originalSubdomain=fr\" target=\"_blank\" rel=\"noopener noreferrer\">David Sineau<\/a>, the project manager. Initiatives Coeur&#8217;s foils are almost as wide as its outriggers and the slim tapering tips make it\u00a0<a href=\"https:\/\/www.facebook.com\/ammp.fecamp\/posts\/1551685881634428?utm_source=Tip+%26+Shaft&amp;utm_campaign=c564efd99e-EMAIL_CAMPAIGN_2019_04_23_02_26_COPY_01&amp;utm_medium=email&amp;utm_term=0_af455e7661-c564efd99e-\" target=\"_blank\" rel=\"noopener noreferrer\">very complicated to dock<\/a>&#8230; and they will likely be hard to clear when sailing.<\/p>\n<p>The extra mass (that is the aperture structure and mechanicals) is reckoned to be more than twice the weight of the foils themselves (a 2016 generation foil weighs between 150 and 200 kg) &#8220;There is more weight also added because\u00a0of the repair of the hull because of the delaminated area during the Route du Rhum and because the foils change the attitude of the boat so consequently brings the slamming areas aft,&#8221; explains Sineau. The cost of this &#8216;initiative&#8217;?\u00a0<em>No comment<\/em>, but along with the new mast that will be fitted next year, according to the team manager of Initiatives Coeur all developments of the boat since 2018 will cost 1 million euros.<\/p>\n<p><strong>What about other architects?<\/strong><br \/>\nCharlie Dalin and Thomas Ruyant both commissioned Guillaume Verdier for their IMOCA. S\u00e9bastien Simon chose\u00a0<a href=\"http:\/\/www.juanyachtdesign.com\/?utm_source=Tip+%26+Shaft&amp;utm_campaign=c564efd99e-EMAIL_CAMPAIGN_2019_04_23_02_26_COPY_01&amp;utm_medium=email&amp;utm_term=0_af455e7661-c564efd99e-\" target=\"_blank\" rel=\"noopener noreferrer\">Juan Kouyoumdjian<\/a>, who also works for Nicolas Troussel&#8217;s\u00a0<strong>Corum<\/strong>). Simon notably has the support of Vincent Riou, who had already had Juan K, the French-Argentinian draw PRB&#8217;s foils for the Route du Rhum.\u00a0&#8220;The experience gained on PRB and the feedback from Vincent allowed us to really refine and back up our simulation tools&#8221;, explains Juan K. &#8220;But the problem with foils is that we have to integrate the deformation of the structure under the increased loads\u00a0 otherwise the simulations themselves are worthless.&#8221;<\/p>\n<p>Designer\u00a0<a href=\"http:\/\/sam.manuard.free.fr\/?utm_source=Tip+%26+Shaft&amp;utm_campaign=c564efd99e-EMAIL_CAMPAIGN_2019_04_23_02_26_COPY_01&amp;utm_medium=email&amp;utm_term=0_af455e7661-c564efd99e-\" target=\"_blank\" rel=\"noopener noreferrer\">Sam Manuard<\/a>, is working on his first IMOCA for Armel Tripon and so is starting from scratch. He relies on\u00a0<a href=\"http:\/\/sailingperformance.com\/?utm_source=Tip+%26+Shaft&amp;utm_campaign=c564efd99e-EMAIL_CAMPAIGN_2019_04_23_02_26_COPY_01&amp;utm_medium=email&amp;utm_term=0_af455e7661-c564efd99e-\" target=\"_blank\" rel=\"noopener noreferrer\">KND SailingPerformance<\/a>\u00a0for modeling and simulation. They have worked on the Volvo Ocean Race, the America&#8217;s Cup and with the TP52s. Manuard is obviously tight lipped on the direction they are taking with their foils: &#8220;One thing is certain, the foils will not be small and they will be orientated more towards all round versatility because the Vend\u00e9e Globe is not just about speed downwind in breeze.&#8221;<\/p>\n<p><strong>Retro-fits<\/strong><br \/>\nLast year, Arnaud Boissi\u00e8res and Alan Roura lined up on the Route du Rhum aboard 2007 generation IMOCAs equipped with foils. On\u00a0<strong>La Mie C\u00e2line<\/strong>, the foils built at\u00a0<a href=\"https:\/\/www.meragitee.com\/?lang=en\" target=\"_blank\" rel=\"noopener noreferrer\">Mer Agit\u00e9e<\/a>\u00a0came out of the moulds for\u00a0<strong>Ma\u00eetre Coq<\/strong>&#8216;s foils for J\u00e9r\u00e9mie Beyou in 2016, but adapted to the specifics of the completely reworked Owen-Clarke design which was previously\u00a0<strong>Ecover 3<\/strong>\u00a0and\u00a0<strong>Gamesa<\/strong>.<\/p>\n<p>On Roura&#8217;s\u00a0<strong>La Fabrique<\/strong>, designers\u00a0<a href=\"http:\/\/www.finot-conq.com\/?utm_source=Tip+%26+Shaft&amp;utm_campaign=c564efd99e-EMAIL_CAMPAIGN_2019_04_23_02_26_COPY_01&amp;utm_medium=email&amp;utm_term=0_af455e7661-c564efd99e-\" target=\"_blank\" rel=\"noopener noreferrer\">Finot-Conq<\/a>\u00a0chose an original geometry: in the form of a comma, the foils move almost vertically on a small radius of curvature. So the tip is almost horizontal in the up position and it straightens down the foil. Really their results during the Route du Rhum, were not conclusive in terms of the effectiveness of the retro fit formula on these heavier boats. The two skippers retain this configuration this season and for the Vend\u00e9e Globe.<\/p>\n<p>Isabelle Joschke has used her additional funding from new partner\u00a0<strong>MACSF<\/strong>\u00a0to equip the former\u00a0<strong>Safran 1<\/strong>, with foils designed by VPLP. They will be &#8220;less extreme and more conventional than those on Charal,&#8221;\u00a0explains Vincent Lauriot-Pr\u00e9vost.\u00a0<strong>MACSF<\/strong>\u00a0has a very light, fairly slender hull, it seems perfect to find a new lease of life with this extra power. Maxime Sorel&#8217;s virtual sister ship\u00a0<strong>V and B<\/strong>(ex Le Souffle du Nord) remains in its original configuration. But the skipper (as others) may modify it next winter after the Transat Jacques Vabre whilst retaining the qualifying miles already accumulated.<\/p>\n<p><strong>What of the future?<\/strong><br \/>\nThe cost of a pair of foils with apertures and mechanical systems varies from 500 to 600 000 euros ex tax. This high expense might be what may hinders future developments. Right now there is nothing within the rules which really limit development and performance potential. &#8220;At the end of the day the only limit is keeping the rig up,&#8221;\u00a0chuckles Sam Manuard. The moment of maximum static recovery for the mast is readily exceeded because of the added power of the foils.<\/p>\n<p>In fact, between the first and latest generation, the surface area has more than doubled. The increased loading requires a much greater strength and structural integrity of these composite pieces and that means substantially increased cost. And specialist builders capable of producing these parts in an autoclave, such as Persico, CDK, Multiplast, Heol Composites, C3 Technologies or Lorima, are very limited. &#8220;We might come up with problems of fairness in terms of equalising cost and manufacturing monopolies,&#8221; anticipates Antoine Mermod, the president of IMOCA, &#8220;even if I think that there\u00a0 will be some convergence in designs which will emerge. We are now thinking of proposing to vote in March 2020 for a draft framework for 2024.&#8221;<\/p>\n<p>By then a Vend\u00e9e Globe and an Ocean Race will have been run. And a huge amount of data will have been accumulated. What generation of foils will we be at by then?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>At the start of the last Vend\u00e9e Globe in 2016 there were\u00a0seven of the 29 IMOCAs with foils. In last year&#8217;s 2018 Route du Rhum Destination Guadeloupe\u00a0half of the IMOCAs which raced had foils. And in the upcoming 2019 Transat Jacques Vabre more than\u00a0two thirds of the fleet will have foils.\u00a0In less than four years foils have become the rule rather than the exception. But they are still very much in the early stages of development.\u00a0Less than one week before the start of the\u00a0Bermudes 1000 Race, the first of the\u00a02019 IMOCA season, we review tips and shafts, by\u00a0Tip &#038; Shaft.\u00a0<\/p>\n","protected":false},"author":4,"featured_media":20882,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[257],"tags":[],"class_list":["post-20885","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-imoca-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Imoca: It&#039;s all about the foils - Sailorz<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sailorz.com\/en\/imoca-en\/imoca-its-all-about-the-foils\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Imoca: It&#039;s all about the foils - Sailorz\" \/>\n<meta property=\"og:description\" content=\"At the start of the last Vend\u00e9e Globe in 2016 there were\u00a0seven of the 29 IMOCAs with foils. In last year&#039;s 2018 Route du Rhum Destination Guadeloupe\u00a0half of the IMOCAs which raced had foils. And in the upcoming 2019 Transat Jacques Vabre more than\u00a0two thirds of the fleet will have foils.\u00a0In less than four years foils have become the rule rather than the exception. But they are still very much in the early stages of development.\u00a0Less than one week before the start of the\u00a0Bermudes 1000 Race, the first of the\u00a02019 IMOCA season, we review tips and shafts, by\u00a0Tip &amp; Shaft.\u00a0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sailorz.com\/en\/imoca-en\/imoca-its-all-about-the-foils\/\" \/>\n<meta property=\"og:site_name\" content=\"Sailorz\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/tipandshaft\/\" \/>\n<meta property=\"article:published_time\" content=\"2019-05-06T07:48:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-06-30T08:41:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sailorz.com\/wp-content\/uploads\/2019\/05\/Initiatives.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1100\" \/>\n\t<meta property=\"og:image:height\" content=\"550\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Axel Capron\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@TipShaft\" \/>\n<meta name=\"twitter:site\" content=\"@TipShaft\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Axel Capron\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/sailorz.com\\\/en\\\/imoca-en\\\/imoca-its-all-about-the-foils\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/sailorz.com\\\/en\\\/imoca-en\\\/imoca-its-all-about-the-foils\\\/\"},\"author\":{\"name\":\"Axel Capron\",\"@id\":\"https:\\\/\\\/sailorz.com\\\/en\\\/#\\\/schema\\\/person\\\/346ee140f805c4fdd4476ed767062ff6\"},\"headline\":\"Imoca: It&#8217;s all about the foils\",\"datePublished\":\"2019-05-06T07:48:23+00:00\",\"dateModified\":\"2020-06-30T08:41:14+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/sailorz.com\\\/en\\\/imoca-en\\\/imoca-its-all-about-the-foils\\\/\"},\"wordCount\":1534,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/sailorz.com\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/sailorz.com\\\/en\\\/imoca-en\\\/imoca-its-all-about-the-foils\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/sailorz.com\\\/wp-content\\\/uploads\\\/2019\\\/05\\\/Initiatives.jpg\",\"articleSection\":[\"Imoca\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/sailorz.com\\\/en\\\/imoca-en\\\/imoca-its-all-about-the-foils\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/sailorz.com\\\/en\\\/imoca-en\\\/imoca-its-all-about-the-foils\\\/\",\"url\":\"https:\\\/\\\/sailorz.com\\\/en\\\/imoca-en\\\/imoca-its-all-about-the-foils\\\/\",\"name\":\"Imoca: It's all about the foils - 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