{"id":6389,"date":"2025-01-25T16:44:37","date_gmt":"2025-01-25T15:44:37","guid":{"rendered":"https:\/\/pilot-hub.com\/?p=6389"},"modified":"2025-01-25T16:44:39","modified_gmt":"2025-01-25T15:44:39","slug":"gps-accidents-in-aviation-how-private-pilots-should-prepare-themselves","status":"publish","type":"post","link":"https:\/\/pilot-hub.com\/en\/gps-ausfaelle-in-der-luftfahrt-wie-sich-privatpiloten-vorbereiten-sollten\/","title":{"rendered":"GPS failures in aviation: how private pilots should prepare themselves"},"content":{"rendered":"<h4 class=\"wp-block-heading\"><strong>GPS failures are becoming more frequent: causes and dangers<\/strong><\/h4>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Global navigation systems under pressure<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Global aviation now uses four different satellite navigation systems:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>GPS (USA)<\/strong><\/li>\n\n\n\n<li><strong>Galileo (EU)<\/strong><\/li>\n\n\n\n<li><strong>Glonass (Russia)<\/strong><\/li>\n\n\n\n<li><strong>Beidou (China)<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">While several systems are usually used in parallel in commercial aviation, many companies rely on <strong>Private aircraft<\/strong> exclusively to the American <strong>GPS<\/strong>. The problem: <strong>Interference and manipulation often specifically affect the GPS signal<\/strong>so that pilots can get into critical situations.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Causes of GPS faults<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Since the beginning of the Russian war against Ukraine, the situation has worsened considerably. Especially in <strong>Eastern Europe, the Baltic Sea region and parts of Poland, Romania and Bulgaria<\/strong> there are repeated reports of GPS interference. Russia deliberately operates <strong>Jammers (jamming)<\/strong> in Kaliningrad and St. Petersburg.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There are two main methods of GPS interference:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Jamming (interference signals)<\/strong>\n<ul class=\"wp-block-list\">\n<li>Powerful jamming transmitters are used to superimpose the actual satellite signal.<\/li>\n\n\n\n<li>Consequence: <strong>GPS navigation fails completely<\/strong>the device reports \"no signal\".<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Spoofing (manipulation of the position)<\/strong>\n<ul class=\"wp-block-list\">\n<li>Here, a jammer transmits <strong>Fake GPS signals<\/strong>which deceive the on-board unit.<\/li>\n\n\n\n<li>Consequence: <strong>The aircraft is \"placed\" in the wrong position<\/strong>which is particularly dangerous when autopilots react to it.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What happens in the event of a GPS failure in the cockpit?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In modern cockpits, GPS-based systems not only take over the pure <strong>Navigation<\/strong>but also many <strong>Additional functions<\/strong>. A GPS failure can therefore have serious consequences:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2708 <strong>Failure of the moving map:<\/strong> The position is no longer displayed.<br>\u2708 <strong>Malfunction of the autopilot:<\/strong> If this is GNSS-controlled, it can make incorrect course corrections.<br>\u2708 <strong>Missing anti-collision warning:<\/strong> Systems such as TCAS or ADS-B may be affected.<br>\u2708 <strong>No terrain warning:<\/strong> The warning systems for terrain (TAWS) and obstacles only work to a limited extent.<br>\u2708 <strong>Inaccurate wind display:<\/strong> Without GPS, there is often no precise calculation of the wind offset.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It becomes particularly critical if the pilot is focussing heavily on <strong>Glass cockpit technology<\/strong> leaves. These modern systems often require GPS signals - a failure can therefore paralyse a large number of navigation and assistance systems.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How should private pilots prepare for GPS failures?<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. regularly check the NOTAMs<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Before taking to the air, pilots should take a look at the <strong>current aeronautical reports (NOTAMs)<\/strong> throw. Areas with possible GPS interference are noted there.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One example: The <strong>NOTAM B0541\/24<\/strong> already warns of <strong>GPS unreliability in north-east Germany<\/strong>:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">???? <em>\"GPS UNRELIABLE AND MAY BE NOT AVAILABLE IN EASTERN PART OF FIR EDWW\".<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. use online tools for GPS monitoring<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Up-to-date information on GPS disruptions is available on special platforms:<br>???? <strong><a href=\"https:\/\/gpsjam.org\/\">GPSJAM<\/a><\/strong> - Shows current jamming zones worldwide.<br>???? <strong><a href=\"https:\/\/www.flightradar24.com\/data\/gps-jamming\">Flightradar24 GPS Jamming Map<\/a><\/strong> - A map with GPS disturbances in aviation.<br>???? <strong><a href=\"https:\/\/ops.group\/blog\/\">OPS Group<\/a><\/strong> - Daily updates on global aviation risks.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. have alternative navigation methods ready<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Even if <strong>Classic radio navigation (VOR\/NDB)<\/strong> is being used less and less, it can be a valuable aid in the event of a GPS failure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">???? <strong>VOR &amp; DME Navigation:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Europe still has a dense network of VOR stations.<\/strong><\/li>\n\n\n\n<li>Pilots should consider the use of VOR\/DME in their flight planning.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">????\ufe0f <strong>Maps even without GPS:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>Moving map function does not work without GPS<\/strong>but the card can of course still be used.<\/li>\n\n\n\n<li>It is therefore advisable, <strong>continuously synchronise the landscape with the map<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">???? <strong>Classic course calculation with compass and clock:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>Compass always works<\/strong> - even in the event of a GPS failure.<\/li>\n\n\n\n<li>The <strong>Navlog with courses and flight times<\/strong> should be updated regularly.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. plan alternative approach procedures<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For instrument flights (IFR) <strong>GPS-based approaches (LPV, LNAV\/VNAV)<\/strong> can no longer be used in the event of a failure.<br>Pilots should therefore ensure that they:<br>\u2705 <strong>Be able to select an alternative approach without GPS (e.g. ILS or VOR).<\/strong><br>\u2705 <strong>Inform air traffic control of the cancellation.<\/strong><br>\u2705 <strong>Be guided to the runway by radar vectors or radio navigation.<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5. use additional technology on board<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Interestingly enough <strong>Tablets and smartphones often less affected by GPS interference<\/strong> as certified aviation systems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Why?<br>???? <strong>Tablets and smartphones usually use several GNSS systems simultaneously (GPS, Glonass, Galileo).<\/strong><br>???? <strong>Certified avionics require higher signal quality and are therefore more sensitive.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">???? <strong>Apps such as \"NaviGuard\" (from APG)<\/strong> recognise GPS faults and help with alternative navigation.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclusion: GPS failures are the new normal - preparation is key<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">GPS has become an indispensable part of modern aviation, but it remains vulnerable to <strong>Malfunctions and manipulations<\/strong>. Especially through the use of <strong>Jamming and spoofing in crisis areas<\/strong> incidents are becoming more frequent, which also have an impact on general aviation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>What should pilots do?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 <strong>Plan flights so that they are not dependent on GPS.<\/strong><br>\u2705 <strong>Master classic navigation methods such as VOR\/DME or map synchronisation.<\/strong><br>\u2705 <strong>Use online tools to check for current GPS faults.<\/strong><br>\u2705 <strong>Find out about alternative approach procedures.<\/strong><br>\u2705 <strong>have tablets\/smartphones on board as an additional navigation aid.<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Source references:<\/strong><br><a href=\"https:\/\/www.fliegermagazin.de\/wissen\/gps-ausfall-wie-bereite-ich-mich-als-privatpilot-darauf-vor\/\" data-type=\"link\" data-id=\"https:\/\/www.fliegermagazin.de\/news\/fussball-em-2024-sorgt-fuer-zahlreiche-sperrgebiete-im-luftraum\/#:~:text=Drei%20Sicherheitsstufen%20w%C3%A4hrend%20der%20Fu%C3%9Fball%2DEM%20202&amp;text=Die%20Flugbeschr%C3%A4nkungsgebiete%20befinden%20sich%20immer,Luftraum%20vormittags%20normal%20nutzbar%20sein.\" target=\"_blank\" rel=\"noreferrer noopener\">Aviation magazine<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>The increasing disruption to GPS navigation poses a serious challenge for aviation. In Eastern Europe in particular, cases of GPS signals being manipulated or blocked are becoming more frequent - a development that can have dangerous consequences for pilots. Modern aircraft are heavily reliant on GNSS (Global Navigation Satellite Systems) navigation, and traditional VOR or NDB radio navigation is becoming less and less important in practice.<\/p>\n<p>But what happens if the GPS suddenly stops working or even displays incorrect positions? What alternatives are available to pilots? And how can you best prepare for a sudden navigation failure?<\/p>","protected":false},"author":5,"featured_media":6390,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[54,55],"tags":[],"module":[],"class_list":["post-6389","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-allgemein","category-safety"],"acf":[],"_links":{"self":[{"href":"https:\/\/pilot-hub.com\/en\/wp-json\/wp\/v2\/posts\/6389","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pilot-hub.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pilot-hub.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pilot-hub.com\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/pilot-hub.com\/en\/wp-json\/wp\/v2\/comments?post=6389"}],"version-history":[{"count":1,"href":"https:\/\/pilot-hub.com\/en\/wp-json\/wp\/v2\/posts\/6389\/revisions"}],"predecessor-version":[{"id":6391,"href":"https:\/\/pilot-hub.com\/en\/wp-json\/wp\/v2\/posts\/6389\/revisions\/6391"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pilot-hub.com\/en\/wp-json\/wp\/v2\/media\/6390"}],"wp:attachment":[{"href":"https:\/\/pilot-hub.com\/en\/wp-json\/wp\/v2\/media?parent=6389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pilot-hub.com\/en\/wp-json\/wp\/v2\/categories?post=6389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pilot-hub.com\/en\/wp-json\/wp\/v2\/tags?post=6389"},{"taxonomy":"module","embeddable":true,"href":"https:\/\/pilot-hub.com\/en\/wp-json\/wp\/v2\/module?post=6389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}