{"id":360009,"date":"2026-04-04T14:12:21","date_gmt":"2026-04-04T08:42:21","guid":{"rendered":"https:\/\/forumias.com\/blog\/?p=360009"},"modified":"2026-04-04T14:12:21","modified_gmt":"2026-04-04T08:42:21","slug":"ins-aridhaman","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/ins-aridhaman\/","title":{"rendered":"INS Aridhaman"},"content":{"rendered":"<p style=\"text-align: justify;\"><b>News: <\/b><span style=\"font-weight: 400;\">India inducted INS Aridaman, its third nuclear-powered ballistic missile submarine (SSBN), strengthening its sea-based nuclear deterrence capabilities.<\/span><\/p>\n<h2 style=\"text-align: justify;\">About INS Aridhaman<\/h2>\n<figure id=\"attachment_360013\" aria-describedby=\"caption-attachment-360013\" style=\"width: 307px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\" wp-image-360013\" src=\"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2026\/04\/129735092.jpg?resize=307%2C434&#038;ssl=1\" alt=\"\" width=\"307\" height=\"434\" srcset=\"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2026\/04\/129735092.jpg?resize=212%2C300&amp;ssl=1 212w, https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2026\/04\/129735092.jpg?w=237&amp;ssl=1 237w\" sizes=\"auto, (max-width: 307px) 100vw, 307px\" \/><figcaption id=\"caption-attachment-360013\" class=\"wp-caption-text\">Source: TOI<\/figcaption><\/figure>\n<ul style=\"text-align: justify;\">\n<li><span style=\"font-weight: 400;\">INS Aridhaman is the <\/span><b>third nuclear-powered ballistic missile submarine or Submersible Ship Ballistic Nuclear (SSBN).<\/b><\/li>\n<li><b>Commission year:<\/b><span style=\"font-weight: 400;\"> It is being commissioned<\/span><b> in 2026.<\/b><\/li>\n<li><span style=\"font-weight: 400;\">It is<\/span><b> part of the strategic weapons programme, <\/b><span style=\"font-weight: 400;\">falls under the<\/span><b> domain of the Strategic Forces <\/b><span style=\"font-weight: 400;\">and is<\/span><b> part of the <a href=\"https:\/\/forumias.com\/blog\/indias-nuclear-triad\/\">India\u2019s nuclear triad.<\/a><\/b><\/li>\n<li><b>Features:\u00a0<\/b>\n<ul>\n<li><span style=\"font-weight: 400;\">The submarine features a<\/span><b> streamlined hull design<\/b><span style=\"font-weight: 400;\">, which<strong> improves its stealth and acoustic performance underwater.<\/strong><\/span><\/li>\n<li><b>Size: It is slightly longer than 111.6 meters, with a width (beam) of 11\u201312 meters.<\/b><\/li>\n<li><b>Propulsion:<\/b><span style=\"font-weight: 400;\"> It is <\/span><b>powered by nuclear propulsion<\/b><span style=\"font-weight: 400;\"> and boasts a &#8220;virtually unlimited&#8221; operational range.<\/span><\/li>\n<li><b>Displacement: <\/b><span style=\"font-weight: 400;\">It has a<\/span><b> displacement of around 7,000 tonnes.<\/b><\/li>\n<li><span style=\"font-weight: 400;\">It is<\/span><b> powered by an 83 MW pressurised water reactor (PWR).<\/b><\/li>\n<li><b>Armaments: <\/b><span style=\"font-weight: 400;\">It is<\/span><b> equipped with eight vertical launch tubes<\/b><span style=\"font-weight: 400;\">.<\/span>\n<ul>\n<li><span style=\"font-weight: 400;\">It can<\/span><b> carry either eight K-4 long-range missiles<\/b><span style=\"font-weight: 400;\"> with a <\/span><b>range of 3,500 km or up to 24 K-15 missiles <\/b><span style=\"font-weight: 400;\">with <\/span><b>a range of 750 km<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li><b>It has six 533 mm torpedo tubes used to fire heavyweight torpedoes for protection.<\/b><\/li>\n<\/ul>\n<\/li>\n<li><span style=\"font-weight: 400;\">It provides India with an assured <\/span><b>second-strike capability, allowing retaliation even after a nuclear first strike.<\/b><\/li>\n<li><span style=\"font-weight: 400;\">Its induction also allows India to maintain<\/span><b> \u201ccontinuous at-sea deterrence.\u201d<\/b><\/li>\n<\/ul>\n<\/li>\n<li><b>Earlier commissioned <\/b><b>Submersible Ship Ballistic Nuclear (<\/b><b>SSBN):<\/b>\n<ul>\n<li><span style=\"font-weight: 400;\">INS Arihant (2016)\u00a0<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><a href=\"https:\/\/forumias.com\/blog\/ins-arighat\/\">INS Arighaat<\/a> (August 2024).<\/span><\/li>\n<\/ul>\n<\/li>\n<li><b>To be commissioned SSBN:<\/b><span style=\"font-weight: 400;\"> The <\/span><b>fourth SSBN of the Aridhaman class, often referred to as S4*,<\/b><span style=\"font-weight: 400;\"> is undergoing sea trials and is expected to be<\/span><b> commissioned in 2027.<\/b><\/li>\n<\/ul>\n<h2 style=\"text-align: justify;\">About INS Arihant<\/h2>\n<figure id=\"attachment_360012\" aria-describedby=\"caption-attachment-360012\" style=\"width: 309px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\" wp-image-360012\" src=\"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2026\/04\/129735252.jpg?resize=309%2C396&#038;ssl=1\" alt=\"\" width=\"309\" height=\"396\" srcset=\"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2026\/04\/129735252.jpg?resize=234%2C300&amp;ssl=1 234w, https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2026\/04\/129735252.jpg?w=261&amp;ssl=1 261w\" sizes=\"auto, (max-width: 309px) 100vw, 309px\" \/><figcaption id=\"caption-attachment-360012\" class=\"wp-caption-text\">Source: TOI<\/figcaption><\/figure>\n<ul style=\"text-align: justify;\">\n<li><span style=\"font-weight: 400;\">INS Arihant is<\/span><b> India\u2019s first nuclear ballistic missile submarine.<\/b><\/li>\n<li><b>Launched in: <\/b><span style=\"font-weight: 400;\">It was <\/span><b>launched in 2009.<\/b><\/li>\n<li><b>Commission year: <\/b><span style=\"font-weight: 400;\">It was commissioned into the <\/span><b>Navy in 2016.<\/b><\/li>\n<li><span style=\"font-weight: 400;\">It conducted its <\/span><b>first deterrence patrol in 2018<\/b><span style=\"font-weight: 400;\">, thus establishing<\/span><b> India\u2019s nuclear triad.<\/b><\/li>\n<li><span style=\"font-weight: 400;\">It was developed under the <\/span><b>Advanced Technology Vessel (ATV) Project.<\/b><\/li>\n<li><b>Developed by: <\/b><span style=\"font-weight: 400;\">It was jointly developed by th<\/span><b>e Indian Navy, Bhabha Atomic Research Centre (BARC) and Defence Research and Development Organisation (DRDO) <\/b><span style=\"font-weight: 400;\">at the naval dockyard in Visakhapatnam.\u00a0<\/span><\/li>\n<li><b>Features:\u00a0<\/b>\n<ul>\n<li><span style=\"font-weight: 400;\">It features a versatile <\/span><b>offensive suite for strategic strikes and tactical defence.\u00a0<\/b><\/li>\n<li><b>Armaments: <\/b><span style=\"font-weight: 400;\">Its four <\/span><b>Vertical Launch System (VLS)<\/b><span style=\"font-weight: 400;\"> tubes can carry either <\/span><b>12 K-15 missiles<\/b><span style=\"font-weight: 400;\"> (750 km range) or <\/span><b>four K-4 missiles<\/b><span style=\"font-weight: 400;\"> (3,500 km range).\u00a0<\/span><\/li>\n<li><span style=\"font-weight: 400;\">It has s<\/span><b>ix torpedo tubes<\/b><span style=\"font-weight: 400;\">, enabling the<\/span><b> launch of heavyweight torpedoes and anti-ship missiles <\/b><span style=\"font-weight: 400;\">against surface and underwater threats.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">It is powered by an <\/span><b>83 MW pressurised light water reactor (CLWR)<\/b><span style=\"font-weight: 400;\"> fueled by enriched uranium, allowing for extended deployments without the need to surface for refuelling.<\/span><\/li>\n<li><b>Drive System:<\/b><span style=\"font-weight: 400;\"> It operates on a <\/span><b>single shaft driven by a steam turbine.<\/b><\/li>\n<li><b>Operational Speed: It has an operational speed of a<\/b><span style=\"font-weight: 400;\">pproximately <\/span><b>24 knots when submerged<\/b><span style=\"font-weight: 400;\"> and between <\/span><b>12 and 15 knots<\/b><span style=\"font-weight: 400;\"> when <\/span><b>surfaced.<\/b><\/li>\n<li><b>Depth Capability:<\/b><span style=\"font-weight: 400;\"> It has an <\/span><b>estimated diving depth exceeding 300 metres,<\/b><span style=\"font-weight: 400;\"> enabling it to operate effectively in deep-sea environments.\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<table style=\"width: 100%; border-collapse: collapse; border-style: solid;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\">\n<h2>About Submersible Ship Ballistic Nuclear (SSBN)<\/h2>\n<ul>\n<li data-path-to-node=\"0\">There are <strong>three types of nuclear- powered submarines<\/strong>:\n<ul>\n<li data-path-to-node=\"0\"><strong>SSN (Submersible Ship Nuclear):<\/strong> It carries conventional weapons.<\/li>\n<li data-path-to-node=\"0\"><strong>SSGN (Ship Submersible Guided Nuclear):<\/strong> It carries guided missiles with conventional warheads.<\/li>\n<\/ul>\n<\/li>\n<li data-path-to-node=\"0\"><strong>SSBN (Ship Submersible Ballistic Nuclear):<\/strong> It is typically the<strong> largest and most complex type of submarine.<\/strong><\/li>\n<li>It is <strong>powered by nuclear propulsion<\/strong> and is <strong>specifically designed to carry and launch ballistic missiles with nuclear warheads<\/strong>, serving as a strategic deterrent.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>News: India inducted INS Aridaman, its third nuclear-powered ballistic missile submarine (SSBN), strengthening its sea-based nuclear deterrence capabilities. About INS Aridhaman INS Aridhaman is the third nuclear-powered ballistic missile submarine or Submersible Ship Ballistic Nuclear (SSBN). Commission year: It is being commissioned in 2026. It is part of the strategic weapons programme, falls under the&hellip; <a class=\"more-link\" href=\"https:\/\/forumias.com\/blog\/ins-aridhaman\/\">Continue reading <span class=\"screen-reader-text\">INS Aridhaman<\/span><\/a><\/p>\n","protected":false},"author":10366,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1566,11959,12039],"tags":[11872,10500],"class_list":["post-360009","post","type-post","status-publish","format-standard","hentry","category-daily-factly-articles","category-defence","category-knolls","tag-9pm-daily-factly","tag-indian-express","entry"],"jetpack_featured_media_url":"","views":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/360009","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\/10366"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=360009"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/360009\/revisions"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=360009"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=360009"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=360009"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}