KDX-III Sejong Destroyer - Batch II
The Navy argued that it should possess six Aegis ships of King Sejong King in addition to securing ability to deal with naval forces in neighboring countries, and to secure regular monitoring and interception capability of North Korean missiles. The National Defense Ministry, in its own discretion, passed additional 10 billion won in the name of the "Deposits for additional construction of King Sejong King" in the defense budget of 2013. However, the final budget of the defense budget approved by the Ministry of Justice was reduced by one billion won, and the Ministry of National Defense and the Joint Chiefs of Staff have rarely accepted the request of the Navy to further the King Sejong King for several years. In 2013 October Republic of Korea Navy Admiral Choi Yoon-hee, who was former chief of staff, became a member of the Joint Chiefs of Staff of the Republic of Korea.
Finally, on 10 December 2013, three additional Aegis vessels were decided by the Joint Chiefs of Staff. The budget was estimated at 4 trillion won, and the timing was announced between 2023 and 2027. This fleet is called the Dokdo- Ida fleet in the press.
With the addition of three additional King Sejong class vessels, it is now being watched as to what effect will be on the 'Mini Aegis', the next-generation destroyer ( KDDX ) project, which is known as the improved version of the Chungmugong Yi. Meanwhile no additional construction of King Sejong the Great-class had started. The National Assembly defense committee newly allocated 3 billion won to the additional construction project of King Sejong the Aegis destroyer in 2014 preliminary examination of the defense budget. This budget was originally reflected in the KDDX program, and as a result, the KDDX program was cut in full.
The BMD capability is a counter to North Korea's SLBM countermeasures, and it may be possible to achieve an aggressive killer scenario that intercepts the SLBM that is launched deeply into North Korea's territorial sea. The anti-submarine capability of the Korean Navy will be introduced in earnest for the first time.
On May 29, 2016, the Navy announced that the new KDX-3 Batch II, which is being built in additional, is equipped with a vertical firing system capable of operating all Standard-class missiles, SM-6 and SM-3. The vertical launch system mentioned seems to mean the BMD system. To cope with North Korea 's increasing ballistic missile threat. It was expected that a total of 60 SM-3s will be budgeted at KRW 900 billion per 20 missiles. The current US SM-3 for Japan Maritime Self-Defense Force to use 8 Aegis missiles per ship. Out of the SM-3 missiles equipped by Batch II for three ships, 30 SM-3 will be enough.
According to information from the 95th Defense Committee, the hull will be extended by 10m and the displacement of water will increase by 400 tons. The application of hybrid propulsion such as CODLAG and limited integrated mast is planned. In order to reduce the maintenance cost in batch 2, the Navy intends to change the propulsion system to a more efficient new propulsion system such as CODLAG, which is also used in COGAG in Daegu, and to reduce the number of crew members to 200 by automation. The maintenance cost will be reduced as compared to the arrangement 1. However, it is fortunate that the radar system, which can be considered as the present value of this transmission, is upgraded and consumes a lot of power.
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