Indian Naval Air Squadron 330 'Harpoons' and Retirement of Sea King Mk 42B Helicopters

Key Facts

• INAS 330 was commissioned on 17 April 1971 at INS Garuda, Kochi, under Commander M. P. Wadhawan.
• The squadron was nicknamed 'The Harpoons' and operated the Westland Sea King Mk 42B helicopter, a naval variant equipped for multi-role maritime warfare including ASW and anti-ship strikes.
• The Sea King Mk 42B helicopter was equipped with advanced sensors like MEL Super Searcher radar, dipping sonar, electronic support measures, and carried weapons including torpedoes, missiles, and depth charges.
• INAS 330 operated from both shore bases (INS Garuda, Kochi originally, later INS Shikra, Mumbai from 1995) and Indian Navy ships such as INS Vikrant and various frigates.
• The squadron saw extensive action during the 1971 Indo-Pak war and accumulated over five decades of service, earning distinction including numerous Nausena Medals.
• The Sea King Mk 42B fleet retired on 14 June 2026 after a final ceremonial flight from INS Shikra, with about 6-8 helicopters operated at a time during its service.
• Post-retirement, Sea King Mk 42B airframes are to be converted into utility transport helicopters ('Barlies') or utilized as test platforms for new sensors and weapons like the Naval Anti-Ship Missile (NASM).
• The Indian Navy is modernizing by acquiring 24 Sikorsky MH-60R Seahawk multi-role helicopters to replace the retiring Sea Kings. Indigenous Multi Role Helicopter and Deck Based MRH programs are also underway.
• Key naval air stations involved are INS Garuda (Kochi) and INS Shikra (Mumbai).

Background & Context

INAS 330 played a pivotal role from its commissioning just before the 1971 Indo-Pak war, where it rapidly became the first squadron to operate Sea King Mk 42 helicopters in combat. The squadron demonstrated versatility by undertaking anti-submarine warfare, anti-ship missions, reconnaissance, and search-and-rescue operations. Its Sea King Mk 42B variant, with enhanced sensors and weapons capability, solidified the squadron's reputation as the "Flying Frigate" of the Indian Navy. Over 55 years, it evolved with naval doctrines and technologies, shifting base from INS Garuda to INS Shikra in 1995 while continuing to perform shipborne and shore-based roles. The decision to retire the Sea King Mk 42B and number plate INAS 330 in 2026 marks the end of an era, reflecting the Indian Navy's strategic modernization with new platforms like the MH-60R Seahawk and indigenous helicopters to maintain maritime operational edge.

Why This Matters for Exams / Exam Relevance

The commissioning and retirement dates, roles, and equipment of INAS 330 are important for questions related to Indian Naval Aviation history, defense modernization, and Indian military operations in 1971. Understanding the multi-role capabilities of maritime helicopters like the Sea King and their replacements help contextualize India’s naval capability development. Details on the squadron's nickname, base locations, and replacement plans are frequently asked in defense and current affairs sections of competitive exams.

Points to Remember

• INAS 330 commissioned: 17 April 1971 at INS Garuda, Kochi.
• Nickname: The Harpoons.
• Primary helicopter: Westland Sea King Mk 42B.
• Roles: Anti-submarine warfare, anti-ship missions, search and rescue.
• Moved base from INS Garuda (Kochi) to INS Shikra (Mumbai) in October 1995.
• Sea King Mk 42B squadron retired and number plated on 14 June 2026.
• Replacement helicopter: Sikorsky MH-60R Seahawk (24 ordered), with indigenous projects ongoing.
• Post-retirement airframes repurposed as utility helicopters ('Barlies') or test platforms.
• Motto: "Any Sea. Any Mission. Any Deck."