S. Korean Navy Sejong (KDX III) destroyers

Hi i thought i would start a thread about this quite new destroyer, I think it is the most heavily armed ship in its class

It uses the Aegis system, and arnaments seem to differ depending on website source but seem to be:

1 127mm L62 Mk-45 Mod 4 naval gun
80 VLS cells for aaw missiles and other compatible missiles
16 SSM-700K Hae Sung long-range anti-ship missiles
32 Hyunmoo III land attack missiles
1 30mm Goalkeeper (CIWS) and a RIM-116 RAM
possibly an additional 16 anti submarine missiles aft

The Koreans have really packed a lot of weapons onto this ship, maybe at the expense of sea keeping?

There arent too many pics out there, but here is a good one

samba said:

Hi i thought i would start a thread about this quite new destroyer, I think it is the most heavily armed ship in its class

It uses the Aegis system, and arnaments seem to differ depending on website source but seem to be:

1 127mm L62 Mk-45 Mod 4 naval gun
80 VLS cells for aaw missiles and other compatible missiles
16 SSM-700K Hae Sung long-range anti-ship missiles
32 Hyunmoo III land attack missiles
1 30mm Goalkeeper (CIWS) and a RIM-116 RAM
possibly an additional 16 anti submarine missiles aft

The Koreans have really packed a lot of weapons onto this ship, maybe at the expense of sea keeping?

There arent too many pics out there, but here is a good one

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Click to expand...

I have an entire page dedicated to this vessel here:



Lots of nice pics there, like this one:



These are the most heavily armed Aegis vessels afloat.

Its nice but they had to import the Standard missiles, AESA, Aegis systems, RAM, and a lot of other things.

Its American systems on a South Korean ship

tanlixiang28776 said:

Its nice but they had to import the Standard missiles, AESA, Aegis systems, RAM, and a lot of other things.

Its American systems on a South Korean ship

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Actually the AN/SPY-1 radar is PESA. Even though most of the systems are imported or non-indigenous, it remains possibly the most powerful individual class of principal surface combatant in east asia and the whole of asia... until China or Japan or India fields a larger class.

Bltizo said:

Actually the AN/SPY-1 radar is PESA. Even though most of the systems are imported or non-indigenous, it remains possibly the most powerful individual class of principal surface combatant in east asia and the whole of asia... until China or Japan or India fields a larger class.

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I think it is definitely the strongest surface combatant/air defense ship out there. A case could certainly be made for the Kirov class Russian cruisers, but this has the capability for more and stronger ( IMHO) surface to surface and surface to air ounch.

I believe and have urged the US Navy to seriously consider a takeoff of this design for the next US cruiser to replace the Ticos. Use two RAMs, use the 155mm AGS, even consider nuclear propulsion (though not a must), make all VLS MKs, etc.

tanlixiang28776 said:

Its nice but they had to import the Standard missiles, AESA, Aegis systems, RAM, and a lot of other things.

Its American systems on a South Korean ship

Click to expand...

Of course it is. It was meant to be. Outside of the one VLS group. It is am enlarged, beefed up, Burke...and shows the US IMHO what they should do for their interim CG design until a full replacement for the Ticos is developed...in fact with a few innovations added, this could be it. See:



It would look like this(love it):

South Korea Launches it's 3rd KDX-3, Sejong class AEGIS Destroyer



The South Korean Navy launched the third Sejong Class AEGIS destroyer, the DDG-993, Seoae Ryu Seong-ryong. This vessel fulfills the original commitment to build three KDX-3 vessels, though South Korea still has the option to build three more.

is the largest and most powerful AEGIS destroyer in existance, carrying more missiles and firepower than their US NAvy compatriots, the Arleigh Burke Class.

But the US Navy has 62 Arliegh Burke Class destroyers.

Jeff Head said:

Of course it is. It was meant to be. Outside of the one VLS group. It is am enlarged, beefed up, Burke...and shows the US IMHO what they should do for their interim CG design until a full replacement for the Ticos is developed...in fact with a few innovations added, this could be it. See:

Click to expand...

I heard that the old Gibbs & Cox hull design for Burke might be bumping up against its limit as these scaled up Burkes hitting the 10,000 ton mark? like the structure problems in the old Tic cruiser with its spurance hull?

i think it would be pointless for a small nation like south korea to invest so heavily into its navy. doesnt matter how much it invests into its military, north korea will always be dominating in the peninsula. the americans have bases there as well, so no one dares to touch it.

North Korea dominating? By what standard? Their economy is in the toilet...their GNP is nil...their people border on starving...and IMHO outside of the few nukes, their military is a paper tiger, particularly compared to the South.

The South's Navy is very strong and the South is doing what it is doing as a result of the general naval arms race in the area involving both Japan and China, both of which are very strong and potential adversaries to S. Korea...though China is probably more so than Japan because of the multi-ties Japan and South Korea have to the US...but make no mistake, there are significant S. Korea - Japan differences, particularly territorially on some of the islands where a lot of national pride is vested.

Jeff Head said:

North Korea dominating? By what standard? Their economy is in the toilet...their GNP is nil...their people border on starving...and IMHO outside of the few nukes, their military is a paper tiger, particularly compared to the South.

The South's Navy is very strong and the South is doing what it is doing as a result of the general naval arms race in the area involving both Japan and China, both of which are very strong and potential adversaries to S. Korea...though China is probably more so than Jaan because of the multi-ties Japan and South Korea have to the US...but make no mistake, there are significant S. Korea - Japan differences, particularly territorially on some of the islands where a lot of national pride is vested.

Click to expand...

Sorry, didn't explain properly enough. Seoul is only 30-40 Km away from the border, where North Korea has prepared more than 5 digits of heavy artilleries to blast the living hell out of Seoul. This city consists more than 70% of national GDP and 45% of the population. Although the North might be a paper tiger, just the artilleries alone will destroy Seoul and this will cause a domino effect on the national economy. So doesn't matter whether if the North loses at the end, South Korea is screwed.

North Korea is similar to China during Mao's era, they don't need a good economy to fight a war. I know this sounds absurd, but the majority of the population in the North are very loyal to the Kim dynasty. The obsolete 2nd generation tanks and cold war era artilleries are more than capable enough to overpower the South.

Anyways, drifting off course.

My point is that South Korea will be screwed either way if they win the war or not. So what's the point of investing so heavily into its military. They should instead work on the economy side.