1.0IOM-SUIhttps://www.iom-sui.ch/wordpressSUI120https://www.iom-sui.ch/wordpress/author/sui120/rich600338<blockquote class="wp-embedded-content" data-secret="ImUzrEOHd2"><a href="https://www.iom-sui.ch/wordpress/iom-sail-identification/">IOM Sail identification</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.iom-sui.ch/wordpress/iom-sail-identification/embed/#?secret=ImUzrEOHd2" width="600" height="338" title="„IOM Sail identification“ – IOM-SUI" data-secret="ImUzrEOHd2" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.iom-sui.ch/wordpress/wp-includes/js/wp-embed.min.js </script> Here is an unofficial interpretation/explication on how to make your sail numbers class legal. The sail identification is one of the most misunderstood part of the class rules and is often not correctly done. If you have any comments or find something that is not correct, please notify us.http://www.iom-sui.ch/wordpress/wp-content/uploads/2012/04/IOM-sail-identification-EN_facsimile.gif