The new 3,600-ton vessel represents a technological and strategic leap in South Korea’s submarine capacity
The Republic of Korea Navy officially launched the submarine Jang Yeong-sil (SS-087)first in class Changbogo-III Batch-IIIduring a ceremony held on October 22 at the shipyards of Hanwha Oceanand Geoje.
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The new submarine, completely designed and built with domestic technology, will be delivered to the fleet before the end of 2027. Weighing 3,600 tons and with a length of 89 meters, the Jang Yeong-sil represents the latest advance in South Korea’s submarine warfare modernization program, aimed at strengthening the country’s strategic deterrence.
According to the Navy, the project was developed to act as a central asset in South Korea’s maritime defense, capable of confronting various threats on the peninsula and beyond. The boat is named after Jang Yeong-sila renowned inventor and engineer of the Joseon dynasty, a symbol of the union between scientific heritage and technological innovation.
During the ceremony, the admiral Kang Dong-gilhead of Naval Operations, highlighted the strategic importance of the launch:
“This launch represents a breakthrough in our pursuit of an intelligent and elite naval force. I have full confidence that the Jang Yeong-sil, built with our own technology, will play a critical role in defending Korea’s maritime sovereignty.”
The new generation Batch-II presents significant improvements compared to the first phase of the Changbogo-III program (also known as KSS-III), including more advanced sensors, greater autonomy and an improved stealth profile. These features allow the vessel to perform independent and prolonged missions, including the ability to launch land attack cruise missiles.
Following launch, the submarine will undergo a series of tests and evaluations before being officially entered into operational service, which is scheduled for the end of 2027.
The company Hanwha Ocean (before Daewoo Shipbuilding & Marine Engineering – DSME) is the prime contractor for the KSS-III program and plays a key role in South Korea’s transition from importer to manufacturer and potential exporter of submarines.
In a statement, the Navy reaffirmed its commitment to integrating cutting-edge technology into its defense structure:
“We will continue to strengthen our naval power based on advanced science and technology, firmly guaranteeing Korea’s maritime sovereignty.”
The development of Changbogo-III Batch-III consolidates South Korea as one of the leading nations in naval engineering and underwater defense, while expanding its export potential of naval platforms to countries interested in South Korean technology.
Source and images: X @ROKNAVY_. This content was created with the help of AI and reviewed by the editorial team.
