{"id":59546,"date":"2025-11-20T19:26:23","date_gmt":"2025-11-20T13:56:23","guid":{"rendered":"https:\/\/www.nextias.com\/ca\/?p=59546"},"modified":"2025-11-21T13:04:06","modified_gmt":"2025-11-21T07:34:06","slug":"isro-ce20-bootstrap-test","status":"publish","type":"post","link":"https:\/\/www.nextias.com\/ca\/current-affairs\/20-11-2025\/isro-ce20-bootstrap-test","title":{"rendered":"ISRO Tests Bootstrap Mode Start on CE20 Cryogenic Engine"},"content":{"rendered":"\n<p><strong>Syllabus: GS3\/Space<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>In News<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ISRO has successfully demonstrated the <strong>bootstrap-mode start of its CE20 cryogenic engine<\/strong> at the <strong>Mahendragiri High-Altitude Test facility engine<\/strong>.\n<ul class=\"wp-block-list\">\n<li><strong>Bootstrap-mode <\/strong>is a self-sustaining start-up sequence where the engine uses its own propellant flow and turbopump dynamics to initiate ignition.<\/li>\n\n\n\n<li>This will increase engine efficiency, restart capability, and reduce weight.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>About CE20 Cryogenic Engine<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img data-dominant-color=\"c9c3c5\" data-has-transparency=\"false\" loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"698\" src=\"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2025\/11\/ISRO-Tests-Bootstrap-Mode-Start-on-CE20-Cryogenic-Engine.webp\" alt=\"CE20 cryogenic engine\" class=\"not-transparent wp-image-59561\" style=\"--dominant-color: #c9c3c5; width:352px;height:auto\" srcset=\"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2025\/11\/ISRO-Tests-Bootstrap-Mode-Start-on-CE20-Cryogenic-Engine.webp 600w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2025\/11\/ISRO-Tests-Bootstrap-Mode-Start-on-CE20-Cryogenic-Engine-258x300.webp 258w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<ul class=\"wp-block-list\">\n<li>Cryogenic engines use extremely low-temperature propellants \u2014 <strong>liquid hydrogen and liquid oxygen (below -150\u00b0C).<\/strong><\/li>\n\n\n\n<li>These engines are the <strong>last stage in space launch vehicles and provide higher efficiency <\/strong>and thrust per kilogram of propellant compared to earth-storable liquid or solid propellants.<\/li>\n\n\n\n<li><strong>ISRO\u2019s CE20 is India\u2019s largest cryogenic engine developed by the Liquid Propulsion Systems<\/strong> Centre in Valiamala, Kerala.<\/li>\n\n\n\n<li>The CE20 engine powers the<strong> LVM3 upper stage<\/strong> and is also qualified for the ambitious Gaganyaan human spaceflight missions.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>LVM3 (GSLV Mk III)<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>LVM3 is ISRO\u2019s new heavy-lift launch vehicle designed to carry payloads of <strong>up to 4000 kg to the Geosynchronous Transfer Orbit (GTO).<\/strong><\/li>\n\n\n\n<li><strong>It has three stages<\/strong>: two solid propellant S200 strap-ons, the liquid L110 core stage with two high thrust <strong>Vikas engines<\/strong> (human-rated Vikas engine supplied by Godrej Enterprises for Gaganyaan), and the <strong>C25 cryogenic upper stage powered by CE20 engines.<\/strong><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Significance<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Strengthens Gaganyaan readiness.<\/li>\n\n\n\n<li>Positions India competitively in global heavy-lift and commercial launch markets.<\/li>\n\n\n\n<li>Advances India\u2019s cryogenic engine ecosystem toward reusable vehicles.<\/li>\n<\/ul>\n\n\n\n<p><strong>Source :<\/strong><a href=\"https:\/\/economictimes.indiatimes.com\/news\/science\/isro-successfully-tests-boot-strap-mode-start-on-ce20-cryogenic-engine\/articleshow\/125439399.cms?from=mdr\" target=\"_blank\" rel=\"noopener\"><strong>ET<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>In News<\/strong><\/p>\n<li class=\"ms-5\">ISRO has successfully demonstrated the bootstrap-mode start of its CE20 cryogenic engine at the Mahendragiri High-Altitude Test facility engine.<\/li>\n<p><\/p>\n<p><strong><\/strong><\/p>\n<li class=\"ms-5\">Bootstrap-mode is a self-sustaining start-up sequence where the engine uses its own propellant flow and turbopump dynamics to initiate ignition.<\/li>\n<li class=\"ms-5\">This will increase engine efficiency, restart capability, and reduce weight.<\/li>\n<p><a href=\"https:\/\/www.nextias.com\/ca\/current-affairs\/20-11-2025\/isro-ce20-bootstrap-test\" class=\"btn btn-primary btn-sm float-end\">Read\u00a0More<\/a><\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-59546","post","type-post","status-publish","format-standard","hentry","category-current-affairs"],"acf":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/59546","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/comments?post=59546"}],"version-history":[{"count":4,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/59546\/revisions"}],"predecessor-version":[{"id":59587,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/59546\/revisions\/59587"}],"wp:attachment":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/media?parent=59546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/categories?post=59546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/tags?post=59546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}