Sejong the Great-class Guided Missile Destroyer

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during the 2008 Busan International Fleet Review.

The Sejong the Great-class guided missile destroyers (Sejongdaewang-Ham or Hangul: 세종대왕급 구축함), also known as KD-III, are guided missile destroyers of the Republic of Korea Navy. The lead ship was launched 25 May 2007, sponsored by Kwon Yang-sook, the First Lady of the Republic of Korea at the time and was commissioned in December 2008. The second ship was commissioned in August 2010. The third ship was commissioned in August 2012. The ROKN has committed itself to having six Sejong the Great-class destroyers.

Specifications[edit | edit source]

  • Type: Guided Missile Destroyer
  • Service Period: 2008 (Batch I)-Present; 2024 (Batch II)-
  • Characteristics:
    • Length: 550 feet 11 inches (167.92 meters meters) - 557 feet 9 inches (170 meters)
    • Beam: 70 feet 3 inches (21.41 meters)
    • Draft: 20 feet 6 inches (6.25 meters)
    • Displacement: 7.650 tons (Standard); 10,000 tons (Full Load) - 8,200 tons (Standard); 12,000 tons (Standard)
  • Crew: 300-400
  • Installed Power: 3 x Rolls-Royce AG9140RF gas turbine generators, 3,000 kW each
  • Propulsion: 4 x General Electric LM2500 COGAG; two shafts, 100,000 total shaft horsepower (75 MW)
  • Range: 5,500 nautical miles (10,186 kilometers) at 20 knots (37.04 km/h)
  • Speed: 30+ knots (55.56+ km/h)
  • Sensor Suite:
    • AN/SPY-1D(V)5 Multifunction Radar
    • LIG Nex1 SPS-560K 3D radar
    • SPS-95K surface radar
    • AN/SPG-62 illuminator x 3
    • VAMPIR IRST
    • DSQS-21 BZ-M hull mounted sonar
    • SQR-220K Black Dragon Towed Sonar
  • Countermeasures
    • LIG Nex1 SLQ-200(V)K Sonata electronic warfare suite
    • SLQ-261K TACM torpedo decoy
    • KDagaie Mk.2 Chaff/Flare Launcher x 4
  • Armament (Batch I):
    • 1 x 5"/62-caliber Mk.45 Mod 4 lightweight naval gun
    • 128 x VLS cells (1 x 80-cell Mk.41, 1 x 48-cell KVLS) - fires RIM-156 SM-2ER Blk.IIIA/B, Red Shark K-ASROC, and Hyunmoo-3C LACMs)
    • 4 x 4-cannister SSM launchers (fires SSM-700K Haeseong anti-ship missiles)
    • 2 x 12.75" triple torpedo tubes (fires Blue Shark lightweight torpedoes)
    • 1 x 30mm/77-caliber Goalkeeper CIWS
    • 1 x 21-cell Mk.49 RAM Launcher
  • Armament (Batch II):
    • 1 x 5"/62-caliber Mk.45 Mod 4 lightweight naval gun
    • 1 x 48-cell Mk.41 VLS (fires SM-2ER Blk.IIIB/IV, SM-6 Blk.I)
    • 1 x 16-cell K-VLS (fires K-ASROC Red Shark ASW missiles, Hyunmoo III cruise missiles, K-SAAM short range AAMs, K-SAM medium range AAMs)
    • 1 x 24-cell K-VLS II (fires L-SAM long range AAMs and Hyunmoo IV ballistic missiles)
    • 8 x SSM-700K Haesong AShMs
    • 2 x 12.75" Mk.32 triple torpedo tube (fires K745 Blue Shark torpedoes)
    • 2 x 20mm/70-caliber Phalanx Blk.1B CIWS
  • Aircraft Carried: 2 x Westland Super Lynx Mk.99/99A or Sikorsky MH-60R Seahawk maritime helicopters

Unit Run[edit | edit source]

Block I[edit | edit source]

  • ROKS Sejong the Great (DDG-991)
  • ROKS Yulgok Yi I (DDG-992)
  • ROKS Seoae Yu Seong-ryong (DDG-993)

Block II[edit | edit source]

  • ROKS Jeongjo the Great (DDG-994)
  • ROKS Dasan Jeong Yak-yong (DDG-995) - sea trials
  • ROKS Daeho Kim Jongseo (DDG-996) - fitting out

See Also[edit | edit source]

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