{"id":348103,"date":"2025-10-15T17:15:25","date_gmt":"2025-10-15T11:45:25","guid":{"rendered":"https:\/\/forumias.com\/blog\/?p=348103"},"modified":"2025-10-15T17:15:25","modified_gmt":"2025-10-15T11:45:25","slug":"crew-escape-system-ces-of-gaganyaan","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/crew-escape-system-ces-of-gaganyaan\/","title":{"rendered":"Crew Escape System (CES) of Gaganyaan"},"content":{"rendered":"<p><strong>News<\/strong><strong>: <\/strong>In October 2023, ISRO tested the Crew Escape System, which is crucial for astronaut safety in the Gaganyaan mission.<\/p>\n<h2>About Crew Escape System (CES) of Gaganyaan<\/h2>\n<ul>\n<li>The CES is an <strong>emergency escape measure<\/strong> designed to <strong>quickly pull the crew module<\/strong> along with the <strong>astronauts<\/strong> to a safe distance from the launch vehicle in the event of a launch abort.<\/li>\n<li><strong>Developed by:<\/strong> It is developed by the Indian Space Research Organisation (<strong>ISRO<\/strong>).<\/li>\n<li><strong>Aim<\/strong>: To ensure astronaut safety by extracting the crew module, with the crew inside, to a safe distance <strong>in the least possible time if something goes wrong during the mission<\/strong>.<\/li>\n<li><strong>Types<\/strong>\n<ul>\n<li><strong>Puller type:<\/strong> The CES pulls the crew module away from the launch vehicle.\n<ul>\n<li>Example &#8211; This one is used in Gaganyaan.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Pusher type:<\/strong> The crew module is pushed away using compact, high-thrust liquid-fuel engines.<br \/>\n\u2022 The <strong>choice depends on propulsion technology and system integration aspects.<\/strong><\/p>\n<ul>\n<li>Example &#8211; vehicles like SpaceX\u2019s Falcon 9)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>Working mechanism<\/strong>\n<ul>\n<li><strong>The CES operates during <\/strong>the ascent\u2019s atmospheric phase, when the Human-rated Launch Vehicle Mark-3 (<strong>HLVM3<\/strong>) <strong>accelerates<\/strong> to hypersonic speeds and faces very high structural loads.<\/li>\n<li><strong>Speed matters:<\/strong> HLVM3 lifts off using <strong>two S200 solid-fuel boosters<\/strong> that cannot be shut down after ignition. So, if there is a problem, the CES must act faster than the rocket and pull the crew module away immediately.<\/li>\n<li><strong>Escape action:<\/strong> CES pulls the crew module away with very <strong>high acceleration, up to ten times gravity.<\/strong><\/li>\n<li><strong>Crew safety posture:<\/strong> Astronauts sit in a \u201c<strong>child-in-cradle\u201d <\/strong><strong>position <\/strong>so the brief high force is tolerable.<\/li>\n<li><strong>After separation:<\/strong> CES releases the module at a safe distance.<\/li>\n<li><strong>Descent control:<\/strong> A multistage parachute system slows the module step by step.<\/li>\n<li><strong>Landing:<\/strong> The module splashes down in the sea within safe impact limits.<\/li>\n<li><strong>Trigger decision:<\/strong> An <strong>Integrated Vehicle Health Management system<\/strong> monitors everything in real time and activates CES if needed.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>News: In October 2023, ISRO tested the Crew Escape System, which is crucial for astronaut safety in the Gaganyaan mission. About Crew Escape System (CES) of Gaganyaan The CES is an emergency escape measure designed to quickly pull the crew module along with the astronauts to a safe distance from the launch vehicle in the&hellip; <a class=\"more-link\" href=\"https:\/\/forumias.com\/blog\/crew-escape-system-ces-of-gaganyaan\/\">Continue reading <span class=\"screen-reader-text\">Crew Escape System (CES) of Gaganyaan<\/span><\/a><\/p>\n","protected":false},"author":10393,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1566,1738,12039],"tags":[11872],"class_list":["post-348103","post","type-post","status-publish","format-standard","hentry","category-daily-factly-articles","category-science-and-technology-daily-factly-articles","category-knolls","tag-9pm-daily-factly","entry"],"jetpack_featured_media_url":"","views":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/348103","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/users\/10393"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=348103"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/348103\/revisions"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=348103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=348103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=348103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}