{"id":10123,"date":"2025-08-09T14:20:54","date_gmt":"2025-08-09T06:20:54","guid":{"rendered":"https:\/\/tommykwan.com\/blog\/?p=10123"},"modified":"2025-08-09T16:22:21","modified_gmt":"2025-08-09T08:22:21","slug":"nav-heading","status":"publish","type":"post","link":"https:\/\/tommykwan.com\/blog\/aviation\/nav-heading\/","title":{"rendered":"(NAV) Heading"},"content":{"rendered":"<p>\u5468\u672b\u7121\u54a9\u65b9\u5411\u611f (\u8b1b\u7b11)&#8230;\u6eab\u4e0b\u6709\u95dcNav\u65e2\u65e2Concept \u5148<\/p>\n<p>&nbsp;<\/p>\n<div class=\"embed-container\"><iframe loading=\"lazy\" title=\"How DO PILOTS KNOW which HEADING to FLY??? Explained by CAPTAIN JOE\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/RWGVuQIB2k0?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<p>&nbsp;<\/p>\n<p><span style=\"text-decoration: underline;\"><strong>Compass Error<\/strong><\/span><\/p>\n<p>\u5462\u500b\u554f\u984c\u6709\u5357\u5317\u534a\u7403\u4e4b\u5206\uff0c\u4ee5\u4e0b\u8b1b\u7dca\u65e2\u91ce\u90fd\u4fc2\u5317\u534a\u7403 (N.H)<\/p>\n<p>\u4e0b\u9762\u689d\u7247\u793a\u7bc4\u5de6UNOS ANDS<\/p>\n<p>&nbsp;<\/p>\n<p>\u6b63\u5e38\u5728\u5730\u9762\u8a66compss, \u8f49\u5de6\u8d70\u53f3, \u8f49\u53f3\u8d70\u5de6 (e.g \u5bb6\u4e0b02x \u8f49\u5de6\u54aa\u5411N, \u6240\u4ee5\u8d70\u53f3 ; \u540c\u664202x \u8f49\u53f3, \u4f62\u6703\u589e\u52a0, \u6240\u4ee5\u8d70\u5de6)<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/proxy\/rUjPDFyUXCZwyripG3faOxg1ZZoaijfs5RfOT2NN0U0_32LgQLNmIattDc5aphacOyxi_5FGHCOiCZbIUjble56zM4cpOeM8xc45KFzVpinG-BAhuw\" alt=\"Need to fly on the compass? Here's how to do it | Essential Pilot\" \/><\/p>\n<p><span style=\"text-decoration: underline;\"><strong>\u5317\u5357\u8f49\u5411\u554f\u984c UNOS: Undershoot North, Overshoot South<\/strong><\/span><\/p>\n<p>Undershoot north \u5c31\u4fc2\u6307\u7d93\u904eN\u8f49\u53f3\u6642\uff0c\u6b63\u5e38\u8d70\u5de6\uff0c\u4f46\u4f62\u6703\u4e00\u958b\u59cb\u8f49\u53f3\uff0c\u7b49\u4e00\u9663\u5148\u53bb\u5de6\u8fd4\u5de6<\/p>\n<p>Overshoot south \u5c31\u4fc2\u8a71, \u7d93\u904eS\u8f49\u53f3\u6642\uff0c\u6b63\u5e38\u8d70\u5de6\uff0c\u4f46\u4f62\u6703\u8d70\u591a\u5de6<\/p>\n<p>\u98db\u6a5f\u5728\u6b63\u5317\u6216\u6b63\u5357\u822a\u5411\u6642\uff0c\u9019\u500b\u7531<strong>magnetic dip<\/strong>\u6240\u9020\u6210\u7684\u5f71\u97ff\u6703\u8d8a\u660e\u986f\u3002\u53cd\u4e4b\uff0c\u5728\u6b63\u6771\u6216\u6b63\u897f\u822a\u5411\u6642\uff0c\u6548\u679c\u5247\u6703\u4e0d\u660e\u986f\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"text-decoration: underline;\"><strong>\u6771\u897f\u52a0\u6e1b\u901f\u554f\u984c ANDS: Accelerate North, Decelerate South<\/strong><\/span><br \/>\n<strong>\u6771\u897f\u5411<\/strong>\u98db\u884c\u6642\uff0c\u5728\u6c92\u6709\u822a\u5411\u8f49\u5411\u7684\u60c5\u6cc1\u4e0b\uff0c<strong>\u52a0\u901f\u6642<\/strong>\uff0c\u98db\u6a5f\u7684\u7f85\u76e4\u6703<strong>\u5f80\u5317<\/strong>\u504f\u4e00\u9ede\uff0c<strong>\u6e1b\u901f<\/strong>\u6642\uff0c\u7f85\u76e4\u5247\u6703<strong>\u5f80\u5357<\/strong>\u504f\u4e00\u9ede\u3002\u8d8a\u662f\u5f80\u6b63\u6771\u6216\u6b63\u897f\u98db\uff0c\u9019\u500b\u504f\u5411\u7684\u6548\u679c\u6703\u8d8a\u660e\u986f\u3002<\/p>\n<p>\u6240\u4ee5<strong>\u5411\u6b63\u6771<\/strong>\u98db\u65e2\u6642\uff0c<strong>\u52a0\u901f\u5411\u5317 (\u5982\u540c\u5de6\u8f49, \u6240\u4ee5lubber\u8d70\u53f3) ; \u6e1b\u901f\u5411\u5357 (\u5982\u540c\u5de6\u8f49, \u6240\u4ee5lubber\u8d70\u5de6) ;<\/strong><\/p>\n<p>\u6240\u4ee5<strong>\u5411\u6b63\u897f<\/strong>\u98db\u65e2\u6642\uff0c<strong>\u52a0\u901f\u5411\u5317 (\u5982\u540c\u53f3\u8f49, \u6240\u4ee5lubber\u8d70\u5de6) ; \u6e1b\u901f\u5411\u5357 (\u5982\u540c\u5de6\u8f49, \u6240\u4ee5lubber\u8d70\u53f3) ;<\/strong><\/p>\n<p>\u82e5\u98db\u6a5f\u5f80\u6b63\u5357\u6216\u6b63\u5317\u98db\uff0c\u9019\u500b\u5f71\u97ff\u5247\u4e0d\u660e\u986f\u3002<\/p>\n<p>&nbsp;<\/p>\n<blockquote><p>\u4e0b\u9762\u679c\u689d\u7247\u4e00\u689d\u597d\u597d\u6e05concept\u65e2\u7247&#8230;<strong>\u5462\u689d\u7247\u53ef\u4ee5\u8a71\u4fc2IFR \u7b2c\u4e00\u8ab2 (\u5982\u679c\u4f60\u543e\u660eConcept \u6b7b\u5de6\u90fd\u543e\u77e5\u54a9\u4e8b!)<\/strong><\/p><\/blockquote>\n<p>\u57283:25 \u958b\u59cb\u7747&#8230;\u4f60\u6703\u898b\u5230\u4f62\u5411\u897f\u98db\u6642\uff0cpitch up\uff0c\u4f46\u4fc2lubber line \u8d70\u53f3\uff0c\u6240\u4ee5\u958b\u982d\u4f60\u6703\u932f\u89ba\u7247\u4e2d\u4eba\u4fc2\u543e\u4fc2full throttle \u6240\u4ee5\u98db\u6a5fpitch up? \u4f46\u7747\u8fd4six gauge&#8230;ASI reducing speed!<\/p>\n<p>So when fly West, ANDS&#8230;W to S is similar turn left &#8230; lubber move right&#8230; BINGO&#8230;\u4ea6\u90fd\u4fc2\u8a71\u6709\u4e00\u500b\u932f\u89ba&#8230;<strong>pitch up\u543e\u4e00\u5b9a\u52a0\u7dca\u901f!\u00a0<\/strong><\/p>\n<div class=\"embed-container\"><iframe loading=\"lazy\" title=\"Magnetic Dip Error Visualized | Compass Errors | UNOS ANDS\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/Cuf8G65EPgw?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<p>\u4e0b\u9762\u53e6\u4e00\u689d\u7247\u5c31\u597d\u597d\u89e3\u91cb\u5de6\u9ede\u89e3ANDS \u4fc2\u5317\u534a\u7403\u65e2\u73fe\u8c61<\/p>\n<p><a href=\"https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2025\/08\/ANDS.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10137\" src=\"https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2025\/08\/ANDS.png\" alt=\"\" width=\"1297\" height=\"759\" srcset=\"https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2025\/08\/ANDS.png 1297w, https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2025\/08\/ANDS-300x176.png 300w, https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2025\/08\/ANDS-1024x599.png 1024w, https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2025\/08\/ANDS-768x449.png 768w\" sizes=\"auto, (max-width: 1297px) 100vw, 1297px\" \/><\/a><\/p>\n<p>\u81f3\u65bc\u9ede\u89e3\u500bCG \u6703\u53bb\u5de6 blue side&#8230;\u4fc2\u56e0\u70bacompass\u65e2Design&#8230;magnetic dip \u9593\u63a5\u4ee4\u500bcompass cg move to blue side (\u5176\u5be6\u4fc2S)<\/p>\n<p><a href=\"https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2025\/08\/Magnetic-Dip-casued-CG-moved.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10139\" src=\"https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2025\/08\/Magnetic-Dip-casued-CG-moved.png\" alt=\"\" width=\"1311\" height=\"793\" srcset=\"https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2025\/08\/Magnetic-Dip-casued-CG-moved.png 1311w, https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2025\/08\/Magnetic-Dip-casued-CG-moved-300x181.png 300w, https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2025\/08\/Magnetic-Dip-casued-CG-moved-1024x619.png 1024w, https:\/\/tommykwan.com\/blog\/wp-content\/uploads\/2025\/08\/Magnetic-Dip-casued-CG-moved-768x465.png 768w\" sizes=\"auto, (max-width: 1311px) 100vw, 1311px\" \/><\/a><\/p>\n<div class=\"embed-container\"><iframe loading=\"lazy\" title=\"Magnetic Compass Errors: Acceleration\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/UvhooB--P2s?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<div class=\"embed-container\"><iframe loading=\"lazy\" title=\"Magnetic Compass Errors Pilots Get Wrong\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/eIFZdDa46Mk?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<p>&nbsp;<\/p>\n<p>\u5462\u500b\u6642\u5019&#8230;\u61c9\u8a72\u7747\u8fd4\u98db\u6a5f\u500bcompass\u65e2\u7d50\u69cb\u4fc2\u9ede&#8230;\u5c31\u6703\u66f4\u52a0\u660e\u767d\u9ede\u89e3\u6709magnetic dip!<\/p>\n<div class=\"embed-container\"><iframe loading=\"lazy\" title=\"The Magnetic Compass\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/f2oMZdRuVBY?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>\u5468\u672b\u7121\u54a9\u65b9\u5411\u611f (\u8b1b\u7b11)&#8230;\u6eab\u4e0b\u6709\u95dcNav\u65e2\u65e2Concept \u5148 &nbsp; &nbsp; Compass Error \u5462\u500b\u554f\u984c\u6709\u5357\u5317\u534a\u7403\u4e4b\u5206\uff0c\u4ee5\u4e0b\u8b1b\u7dca\u65e2\u91ce\u90fd\u4fc2\u5317\u534a\u7403 (N.H) \u4e0b\u9762\u689d\u7247\u793a\u7bc4\u5de6UNOS ANDS &nbsp; \u6b63\u5e38\u5728\u5730\u9762\u8a66compss, \u8f49\u5de6\u8d70\u53f3, \u8f49\u53f3\u8d70\u5de6 (e.g \u5bb6\u4e0b02x \u8f49\u5de6\u54aa\u5411N, \u6240\u4ee5\u8d70\u53f3 ; \u540c\u664202x \u8f49\u53f3, \u4f62\u6703\u589e\u52a0, \u6240\u4ee5\u8d70\u5de6) \u5317\u5357\u8f49\u5411\u554f\u984c UNOS: Undershoot North, Overshoot South Undershoot north \u5c31\u4fc2\u6307\u7d93\u904eN\u8f49\u53f3\u6642\uff0c\u6b63\u5e38\u8d70\u5de6\uff0c\u4f46\u4f62\u6703\u4e00\u958b\u59cb\u8f49\u53f3\uff0c\u7b49\u4e00\u9663\u5148\u53bb\u5de6\u8fd4\u5de6 Overshoot south \u5c31\u4fc2\u8a71, \u7d93\u904eS\u8f49\u53f3\u6642\uff0c\u6b63\u5e38\u8d70\u5de6\uff0c\u4f46\u4f62\u6703\u8d70\u591a\u5de6 \u98db\u6a5f\u5728\u6b63\u5317\u6216\u6b63\u5357\u822a\u5411\u6642\uff0c\u9019\u500b\u7531magnetic dip\u6240\u9020\u6210\u7684\u5f71\u97ff\u6703\u8d8a\u660e\u986f\u3002\u53cd\u4e4b\uff0c\u5728\u6b63\u6771\u6216\u6b63\u897f\u822a\u5411\u6642\uff0c\u6548\u679c\u5247\u6703\u4e0d\u660e\u986f\u3002 &nbsp; \u6771\u897f\u52a0\u6e1b\u901f\u554f\u984c ANDS: Accelerate North, Decelerate South \u6771\u897f\u5411\u98db\u884c\u6642\uff0c\u5728\u6c92\u6709\u822a\u5411\u8f49\u5411\u7684\u60c5\u6cc1\u4e0b\uff0c\u52a0\u901f\u6642\uff0c\u98db\u6a5f\u7684\u7f85\u76e4\u6703\u5f80\u5317\u504f\u4e00\u9ede\uff0c\u6e1b\u901f\u6642\uff0c\u7f85\u76e4\u5247\u6703\u5f80\u5357\u504f\u4e00\u9ede\u3002\u8d8a\u662f\u5f80\u6b63\u6771\u6216\u6b63\u897f\u98db\uff0c\u9019\u500b\u504f\u5411\u7684\u6548\u679c\u6703\u8d8a\u660e\u986f\u3002 \u6240\u4ee5\u5411\u6b63\u6771\u98db\u65e2\u6642\uff0c\u52a0\u901f\u5411\u5317 (\u5982\u540c\u5de6\u8f49, \u6240\u4ee5lubber\u8d70\u53f3) ; \u6e1b\u901f\u5411\u5357 (\u5982\u540c\u5de6\u8f49, \u6240\u4ee5lubber\u8d70\u5de6) ;<a class=\"read-more \" href=\"https:\/\/tommykwan.com\/blog\/aviation\/nav-heading\/\" 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-10123","post","type-post","status-publish","format-standard","hentry","category-aviation","category-navigation"],"_links":{"self":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/10123","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=10123"}],"version-history":[{"count":16,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/10123\/revisions"}],"predecessor-version":[{"id":10141,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/10123\/revisions\/10141"}],"wp:attachment":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/media?parent=10123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/categories?post=10123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/tags?post=10123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}