{"id":9359,"date":"2024-08-25T19:08:01","date_gmt":"2024-08-25T11:08:01","guid":{"rendered":"https:\/\/tommykwan.com\/blog\/?p=9359"},"modified":"2024-08-25T20:48:34","modified_gmt":"2024-08-25T12:48:34","slug":"nav-great-circle-small-circle-rhumb-line","status":"publish","type":"post","link":"https:\/\/tommykwan.com\/blog\/aviation\/nav-great-circle-small-circle-rhumb-line\/","title":{"rendered":"[NAV] Great circle, Small circle, Rhumb line"},"content":{"rendered":"<p><strong>Great circle<\/strong><\/p>\n<ul>\n<li>select two points on a sphere, and the largest possible circle that can be drawn around the sphere<\/li>\n<\/ul>\n<p>Great circle track feature<\/p>\n<ul>\n<li>shortest distance between any two points on the surface of a sphere<\/li>\n<li>constantly changing track direction as a result of convergency<\/li>\n<\/ul>\n<p><strong>Small circle<\/strong><\/p>\n<ul>\n<li>select two points on a sphere, and draw a circle that is not great circle<br \/>\n(any circle that is not great circle)<\/li>\n<\/ul>\n<p><strong>Rhumb line<\/strong><\/p>\n<ul>\n<li>line on the surface of the earth that cross each successive meridian at the same angle<br \/>\n(i.e line of constant bearing)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/proxy\/jeJHQzw-m5iExDt3KYgYaaeLHHkaju3lv0wYXo41tJ-CsY2dNgSX1K-Yf5jJ4jzV7-Xo4T_cCSciUZZ6eZjj6sZ1Bg-D7cvL\" alt=\"Sailtrain: Navigation and Chartwork, Chart projections.\" \/><\/p>\n<div class=\"embed-container\"><iframe loading=\"lazy\" title=\"Great Circles and Rhumb Lines - Types of Routes\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/3BF_ZKfJiso?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Great circle select two points on a sphere, and the largest possible circle that can be drawn around the sphere Great circle track feature shortest distance between any two points on the surface of a sphere constantly changing track direction as a result of convergency Small circle select two points on a sphere, and draw<a class=\"read-more \" href=\"https:\/\/tommykwan.com\/blog\/aviation\/nav-great-circle-small-circle-rhumb-line\/\" title=\"Read More\"> <span class=\"button default\">Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[64,70],"tags":[],"class_list":["post-9359","post","type-post","status-publish","format-standard","hentry","category-aviation","category-navigation"],"_links":{"self":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/9359","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/comments?post=9359"}],"version-history":[{"count":10,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/9359\/revisions"}],"predecessor-version":[{"id":9369,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/9359\/revisions\/9369"}],"wp:attachment":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/media?parent=9359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/categories?post=9359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/tags?post=9359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}