{"id":155651,"date":"2026-04-11T16:16:57","date_gmt":"2026-04-11T23:16:57","guid":{"rendered":"https:\/\/www.lankaweb.com\/news\/items\/?p=155651"},"modified":"2026-04-11T16:16:57","modified_gmt":"2026-04-11T23:16:57","slug":"what-are-the-naval-weapons-and-defence-systems-bought-by-indian-ship-builders-from-us-companies","status":"publish","type":"post","link":"https:\/\/www.lankaweb.com\/news\/items\/2026\/04\/11\/what-are-the-naval-weapons-and-defence-systems-bought-by-indian-ship-builders-from-us-companies\/","title":{"rendered":"What are the naval weapons and defence systems bought by Indian ship builders from US companies"},"content":{"rendered":"

From\u00a0AI resources\u00a0<\/em><\/span><\/h2>\n\n\n

Indian shipbuilders (MDL, GRSE, Cochin Shipyard, L&T Defence, etc.) do not directly buy\u201d US naval weapons in a simple procurement sense. Instead, they integrate US-origin systems mainly through:<\/p>\n\n\n\n

\u2022 Government-to-government (FMS) deals<\/p>\n\n\n\n

\u2022 Licensed integration into ships<\/p>\n\n\n\n

\u2022 OEM supply for specific weapon modules<\/p>\n\n\n\n

\u2022 Electronics, sensors, and missile systems cooperation<\/p>\n\n\n\n

Here is a clear, structured breakdown of US-origin naval weapons and defence systems used on Indian Navy ships and platforms built by Indian shipyards.<\/p>\n\n\n\n

Naval Weapons & Systems (US origin) used in Indian-built ships<\/p>\n\n\n\n

Anti-Submarine Warfare (ASW) Torpedoes<\/p>\n\n\n\n

MK 54 Lightweight Torped<\/p>\n\n\n\n

Supplier: Raytheon (via US Navy FMS)<\/p>\n\n\n\n

Used on:<\/p>\n\n\n\n

     P-8I maritime patrol aircraft<\/p>\n\n\n\n

     Indian Navy ASW operations (ship integration support systems)<\/p>\n\n\n\n

One of the most important US naval weapons India operate Supports anti-submarine warfare in Indian Ocean Region<\/p>\n\n\n\n

Example: India signed deals worth hundreds of crores for MK-54 torpedoes and countermeasures.  <\/p>\n\n\n\n

Close-In Weapon Systems (CIWS)<\/p>\n\n\n\n

Phalanx CIWS (20mm radar-guided gun system)<\/p>\n\n\n\n

\u2022 Supplier: Raytheon<\/p>\n\n\n\n

\u2022 Function:<\/p>\n\n\n\n

\u2022 Last-line missile and aircraft defence<\/p>\n\n\n\n

\u2022 Automatic radar-guided firing system<\/p>\n\n\n\n

\u2022 Installed on:<\/p>\n\n\n\n

\u2022 Older Indian Navy ships (US-origin platforms like INS Jalashwa)<\/p>\n\n\n\n

\u2022 Some integrated legacy systems<\/p>\n\n\n\n

Protects ships against incoming missiles at very short range<\/p>\n\n\n\n

Maritime Patrol Aircraft Weapons (Ship-linked system)<\/p>\n\n\n\n

Sonobuoys & ASW systems<\/p>\n\n\n\n

\u2022 Suppliers:<\/p>\n\n\n\n

\u2022 Ultra Maritime<\/p>\n\n\n\n

\u2022 US Navy supply chain<\/p>\n\n\n\n

Used with:<\/p>\n\n\n\n

\u2022 P-8I Poseidon aircraft (built by Boeing, US)<\/p>\n\n\n\n

These systems are critical for:<\/p>\n\n\n\n

\u2022 Detecting submarines<\/p>\n\n\n\n

\u2022 Feeding data to Indian Navy ships and fleets<\/p>\n\n\n\n

Missile-related Systems (Indirect US input)<\/p>\n\n\n\n

While India mainly uses Israeli\/Russian missiles, US systems contribute in:<\/p>\n\n\n\n

\u2022 Fire control electronics<\/p>\n\n\n\n

\u2022 Radar integration components<\/p>\n\n\n\n

\u2022 Combat system subsystems<\/p>\n\n\n\n

Example contributors:<\/p>\n\n\n\n

\u2022 Lockheed Martin (sensor and electronics tech ecosystem)<\/p>\n\n\n\n

\u2022 Northrop Grumman (radar\/avionics tech influence in allied systems)<\/p>\n\n\n\n

Naval Electronics & Combat Systems Integration<\/p>\n\n\n\n

Indian shipbuilders integrate US-origin or US-standard-compatible systems in:<\/p>\n\n\n\n

\u2022 Combat Management Systems (CMS interfaces)<\/p>\n\n\n\n

\u2022 Communication systems (NATO-compatible architecture in some vessels)<\/p>\n\n\n\n

\u2022 Navigation and targeting sensors (select subsystems)<\/p>\n\n\n\n

US-Origin Warship Platforms Used in India (Important context)<\/p>\n\n\n\n

Some systems entered via transfer of US ships:<\/p>\n\n\n\n

Example:<\/p>\n\n\n\n

\u2022 USS Trenton \u2192 INS Jalashwa<\/p>\n\n\n\n

\u2022 Included:<\/p>\n\n\n\n

\u2022 Phalanx CIWS (Raytheon)<\/p>\n\n\n\n

\u2022 US-standard naval sensors<\/p>\n\n\n\n

\u2022 Helicopter operations systems<\/p>\n\n\n\n

Important Reality (Very Important Insight)<\/p>\n\n\n\n

Even though US companies are involved:<\/p>\n\n\n\n

Indian shipbuilders (MDL, GRSE, CSL, L&T):<\/p>\n\n\n\n

They do NOT directly procure weapons like a normal buyer. Instead:<\/p>\n\n\n\n

Indian Navy selects weapon system<\/p>\n\n\n\n

Government signs FMS or OEM deal<\/p>\n\n\n\n

System is integrated during shipbuilding<\/p>\n\n\n\n

Shipbuilders are integrators, not arms buyers<\/p>\n\n\n\n

Strategic Insight (Why US systems matter)<\/p>\n\n\n\n

US systems are used because they provide:<\/p>\n\n\n\n

\u2022 High reliability for ASW warfare<\/p>\n\n\n\n

\u2022 NATO-standard interoperability<\/p>\n\n\n\n

\u2022 Advanced sensor + fire-control tech<\/p>\n\n\n\n

\u2022 Compatibility with Indian-US naval cooperation<\/p>\n\n\n\n

But India is now shifting toward:<\/p>\n\n\n\n

Indigenous weapons + Israeli + French + US mix<\/p>\n\n\n\n

Final Summary<\/p>\n\n\n\n

Major US naval weapons\/systems used in Indian shipbuilding ecosystem:<\/p>\n\n\n\n

\u2022 MK 54 Torpedoes \u2013 Raytheon<\/p>\n\n\n\n

\u2022 Phalanx CIWS \u2013 Raytheon<\/p>\n\n\n\n

\u2022 ASW sonobuoys & underwater systems \u2013 US suppliers<\/p>\n\n\n\n

\u2022 Combat electronics & sensor subsystems \u2013 US defence ecosystem<\/p>\n\n\n\n

But Indian shipyards themselves do not buy weapons\u201d directly\u2014they integrate systems chosen by the Indian Navy.<\/p>\n\n\n\n

Regards

Dr Sarath Obeysekera<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

From\u00a0AI resources\u00a0 Indian shipbuilders (MDL, GRSE, Cochin Shipyard, L&T Defence, etc.) do not directly buy\u201d US naval weapons in a simple procurement sense. Instead, they integrate US-origin systems mainly through: \u2022 Government-to-government (FMS) deals \u2022 Licensed integration into ships \u2022 OEM supply for specific weapon modules \u2022 Electronics, sensors, and missile systems cooperation Here is […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[116],"tags":[],"class_list":["post-155651","post","type-post","status-publish","format-standard","hentry","category-dr-sarath-obeysekera"],"_links":{"self":[{"href":"https:\/\/www.lankaweb.com\/news\/items\/wp-json\/wp\/v2\/posts\/155651","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lankaweb.com\/news\/items\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lankaweb.com\/news\/items\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lankaweb.com\/news\/items\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lankaweb.com\/news\/items\/wp-json\/wp\/v2\/comments?post=155651"}],"version-history":[{"count":1,"href":"https:\/\/www.lankaweb.com\/news\/items\/wp-json\/wp\/v2\/posts\/155651\/revisions"}],"predecessor-version":[{"id":155652,"href":"https:\/\/www.lankaweb.com\/news\/items\/wp-json\/wp\/v2\/posts\/155651\/revisions\/155652"}],"wp:attachment":[{"href":"https:\/\/www.lankaweb.com\/news\/items\/wp-json\/wp\/v2\/media?parent=155651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lankaweb.com\/news\/items\/wp-json\/wp\/v2\/categories?post=155651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lankaweb.com\/news\/items\/wp-json\/wp\/v2\/tags?post=155651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}