{"id":463,"date":"2020-10-27T08:41:48","date_gmt":"2020-10-27T08:41:48","guid":{"rendered":"https:\/\/maritimesa.org\/nautical-science-grade-11\/?p=463"},"modified":"2020-10-27T08:58:46","modified_gmt":"2020-10-27T08:58:46","slug":"safe-water-marks","status":"publish","type":"post","link":"https:\/\/maritimesa.org\/nautical-science-grade-11\/2020\/10\/27\/safe-water-marks\/","title":{"rendered":"Safe water marks"},"content":{"rendered":"<div id=\"attachment_231\" style=\"width: 910px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-231\" class=\"wp-image-231 size-full\" src=\"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-content\/uploads\/sites\/6\/2020\/10\/11.2.3.7_fig_1.jpg\" alt=\"\" width=\"900\" height=\"484\" srcset=\"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-content\/uploads\/sites\/6\/2020\/10\/11.2.3.7_fig_1.jpg 900w, https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-content\/uploads\/sites\/6\/2020\/10\/11.2.3.7_fig_1-300x161.jpg 300w, https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-content\/uploads\/sites\/6\/2020\/10\/11.2.3.7_fig_1-768x413.jpg 768w, https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-content\/uploads\/sites\/6\/2020\/10\/11.2.3.7_fig_1-260x140.jpg 260w, https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-content\/uploads\/sites\/6\/2020\/10\/11.2.3.7_fig_1-50x27.jpg 50w, https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-content\/uploads\/sites\/6\/2020\/10\/11.2.3.7_fig_1-139x75.jpg 139w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><p id=\"caption-attachment-231\" class=\"wp-caption-text\">Safe water marks.<\/p><\/div>\n<p><strong>Purpose.<\/strong><br \/>\nSafe water marks are used to indicate that there is navigable water all round the mark. It could be used as a centre line, mid-channel or land fall buoy, or to indicate the best point of passage under a bridge.<\/p>\n<p><strong>Colours.<\/strong><br \/>\nRed with white vertical stripes are used for safe water marks.<\/p>\n<p><strong>Shape.<\/strong><br \/>\nSpherical, pillar or spar buoys are used as safe water marks.<\/p>\n<p><strong>Lights.<\/strong><br \/>\nA white light, occulting, or isophase, or showing a single long flash or morse code A is used for safe water marks. If a long flash (not less than 2 seconds) is used, the period of the light is 10 seconds.<\/p>\n<p><strong>Retroreflectors.<\/strong><br \/>\nOne or more white bands, letters, numerals or symbols of retroreflective material are used in the standard code. Red and white stripes or bands are used in the comprehensive code.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Purpose. Safe water marks are used to indicate that there is navigable water all round the mark. It could be used as a centre line, mid-channel or land fall buoy, or to indicate the best point of passage under a bridge. Colours. Red with white vertical stripes are used for [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[73,82,97],"tags":[],"class_list":["post-463","post","type-post","status-publish","format-standard","hentry","category-11-2-seamanship","category-11-2-3-system-of-buoyage","category-11-2-3-7-safe-water-marks"],"_links":{"self":[{"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/posts\/463"}],"collection":[{"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/comments?post=463"}],"version-history":[{"count":2,"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/posts\/463\/revisions"}],"predecessor-version":[{"id":474,"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/posts\/463\/revisions\/474"}],"wp:attachment":[{"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/media?parent=463"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/categories?post=463"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/tags?post=463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}