{"id":7716,"date":"2024-03-29T16:42:20","date_gmt":"2024-03-29T08:42:20","guid":{"rendered":"https:\/\/tommykwan.com\/blog\/?p=7716"},"modified":"2024-05-05T23:50:56","modified_gmt":"2024-05-05T15:50:56","slug":"how-can-we-know-the-variation","status":"publish","type":"post","link":"https:\/\/tommykwan.com\/blog\/aviation\/how-can-we-know-the-variation\/","title":{"rendered":"How can we know the variation?\u00a0"},"content":{"rendered":"<p>Reference: HKU Space material<\/p>\n<p><strong>Ans: get the variation from chart<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Isogonal(s)<\/strong> are the lines on map showing equal magnetic variation.<\/p>\n<p>Both <a href=\"https:\/\/www.faa.gov\/air_traffic\/flight_info\/aeronav\/digital_products\/aero_guide\/\">FAA<\/a> and <a href=\"http:\/\/chrome-extension:\/\/efaidnbmnnnibpcajpcglclefindmkaj\/https:\/\/www.airservicesaustralia.com\/aip\/current\/iaipchart\/Aeronauticalchartuserguide.pdf\">Airservices Australia<\/a> have issued &#8220;aeronautical chart user guide&#8221;.<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"text-decoration: underline;\">Variation in Australia Chart<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7719 size-full\" src=\"https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2024\/03\/Variation-in-Australia-Chart.png\" alt=\"\" width=\"577\" height=\"407\" srcset=\"https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2024\/03\/Variation-in-Australia-Chart.png 577w, https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2024\/03\/Variation-in-Australia-Chart-300x212.png 300w, https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2024\/03\/Variation-in-Australia-Chart-211x150.png 211w\" sizes=\"auto, (max-width: 577px) 100vw, 577px\" \/><\/p>\n<p><span style=\"text-decoration: underline;\">Variation in USA Chart<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7720 size-full\" src=\"https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2024\/03\/Variation-in-USA-Chart.png\" alt=\"\" width=\"496\" height=\"161\" srcset=\"https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2024\/03\/Variation-in-USA-Chart.png 496w, https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2024\/03\/Variation-in-USA-Chart-300x97.png 300w\" sizes=\"auto, (max-width: 496px) 100vw, 496px\" \/><\/p>\n<p>&nbsp;<\/p>\n<div class=\"embed-container\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"i9xrECr923\"><p><a href=\"https:\/\/tommykwan.com\/blog\/aviation\/whats-variation-deviation\/\">What&#8217;s Variation, Deviation?<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;What&#8217;s Variation, Deviation?&#8221; &#8212; Tommy&#039;s Diaries\" src=\"https:\/\/tommykwan.com\/blog\/aviation\/whats-variation-deviation\/embed\/#?secret=lNo0paNELY#?secret=i9xrECr923\" data-secret=\"i9xrECr923\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Reference: HKU Space material Ans: get the variation from chart &nbsp; Isogonal(s) are the lines on map showing equal magnetic variation. Both FAA and Airservices Australia have issued &#8220;aeronautical chart user guide&#8221;. &nbsp; Variation in Australia Chart Variation in USA Chart &nbsp; What&#8217;s Variation, Deviation?<a class=\"read-more \" href=\"https:\/\/tommykwan.com\/blog\/aviation\/how-can-we-know-the-variation\/\" 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":[68,64,70],"tags":[],"class_list":["post-7716","post","type-post","status-publish","format-standard","hentry","category-atpl-knowledge","category-aviation","category-navigation"],"_links":{"self":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/7716","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=7716"}],"version-history":[{"count":6,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/7716\/revisions"}],"predecessor-version":[{"id":8019,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/7716\/revisions\/8019"}],"wp:attachment":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/media?parent=7716"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/categories?post=7716"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/tags?post=7716"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}