Jointly developed with ADD... to replace imported equipment
Expected to boost competitiveness for next-generation submarine deployment and overseas exports

Hanwha Ocean has succeeded in localizing a horizontal launch system, a key piece of submarine equipment, after 10 years of joint research with the Agency for Defense Development (ADD).

Artist's rendering of a horizontal launch scene. Hanwha Ocean

Artist's rendering of a horizontal launch scene. Hanwha Ocean

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Hanwha Ocean announced on Nov. 1 that it had independently developed a “Water Ram-type horizontal launch system” using entirely domestic technology in collaboration with ADD.


A horizontal launch system is a key piece of equipment that launches torpedoes and other major weapons from inside a submarine into the sea. The Water Ram system developed this time uses water pressure to propel torpedoes and other projectiles. It is designed to precisely control the force generated during launch, allowing weapons to be fired steadily at a consistent speed.


The system also offers enhanced safety and ease of operation. Multiple safety mechanisms have been incorporated to prevent equipment malfunctions, and it has been designed to withstand the high pressure of the deep sea and the strong shocks generated during launch, ensuring structural safety and impact resistance. Its simplified structure also makes maintenance easier.


Hanwha Ocean expects localization to reduce costs and delivery times by replacing previously imported equipment. It has also secured launch-force analysis technology that enables it to design launch systems for various submarines, and plans to apply the technology to the development of next-generation submarines and future exports.



Kim Geonho, senior executive and head of Hanwha Ocean’s Defense Technology Research Center, said, “Building on the technology and experience accumulated through this development, we plan to improve the quality of key submarine equipment and continue to advance related technologies needed for next-generation submarines, contributing to the strengthening of the Republic of Korea Navy.”


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