Dokdo class
.jpg) The Dokdo
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The Dokdo class ( Hangeul : 독도 급 강습 상륙함, Hanja : 獨 島 級 強襲 上 陸 艦 ), also known as LPX - Landing Platform eXperimental , is a class of two amphibious assault ships ( helicopter carriers ) of the Navy of the Republic of Korea (ROKN).
Naming
The name of the type ship Dokdo is the Korean name for the Liancourt rock and Marado is a Jejudo island.
technology
General
The Dokdo class is the largest class of ships in the South Korean Navy and is slightly larger than the Spanish aircraft carrier Príncipe de Asturias (R-11) . The class was designed according to the US Navy's Over-The-Horizon Concept (OTH) , which means that heavy equipment is disembarked from a distance of more than eighty kilometers from the beach on the high seas and then lands. This may with ten helicopters of type -60 SH Sea Hawk be equipped, alternatively ten are whiz (for example, Hawker Siddeley Harrier or Lockheed Martin F-35 B) of allies conceivable that the cover is designed to the hot exhaust plume of To resist thrusters.
In the hull of the ship are located up to 720 marines , ten tanks , ten trucks , seven AAVs , three field guns , ten helicopters and two LCAC - hovercraft .
Armament
The armament consists of a RAM launcher and two goalkeeper close-range defense systems .
Sensors
The SMART-L is a rotating long-range radar with phased array antenna from the former Dutch manufacturer Hollandse Signaalapparaten (Signaal), now Thales Naval Nederland . The radar, which is passive phase-controlled in the elevation angle, was developed specifically to locate stealth aircraft . The antenna with the dimensions of 8.2 m × 4 m consists of 24 rows of receiving modules stacked on top of each other. Of these, 16 rows can both send and receive, the rest can only receive. The radar uses the chirping D-band (1-2 GHz) solid-state transmitter (D-SSTX) on the LW-09 radar to transmit. The transmitter module, made up of 16 units connected in parallel, generates a peak power of 4 kW, which is then amplified in 32 power amplifier modules to 100 kW pulse power. These systems are located in the deck structure under the radar; the signal then travels through a waveguide to the antenna. There it is emitted via digital phase shifters. The phase control of the transmission energy achieves both vertical beam pivoting and antenna stabilization.
Since the SMART-L is supposed to locate stealth targets, the antenna is so sensitive that practically every radar echo contains a Doppler shift . In addition, there is the problem that, in addition to the disturbance data, mainly birds are located at great distances. To avoid overloading the plot extractor with false targets, 1000 air targets, 100 surface targets and 32 jammers can be tracked simultaneously. The target correlation to tracks is carried out from scan to scan via the distance and radial speed of the contact using Multiple Hypothesis Tracking (MHT). The MHT filter calculates all plausible traces of flight on the basis of the contacts, the most likely hypotheses are passed on to the ship's combat system. Once the target position and course have been determined, friend-foe recognition according to STANAG 4182 can be carried out. Since this also takes place in the L-band, no separate antenna is required. If the friend-foe identification is negative, the SMART-L can determine the type of air target through non-cooperative target identification.
units
| Identifier | Surname | Shipyard | Keel laying | Launch | Commissioning | annotation |
|---|---|---|---|---|---|---|
| LPH 6111 | Dokdo | Hanjin Heavy Industries , Busan | October 2002 | July 12, 2005 | July 3, 2007 | active |
| LPH 6112 | Marado | 2016 | May 14, 2018 | 2020 (planned) [obsolete] | under construction | |
| LPH 6113 | Baengnyeongdo | Unsubscribed by the government of Lee Myung-bak | ||||
See also
Web links
- Dokdo class on GlobalSecurity.org
- Dokdo class on JeffHead.com
- Dokdo class on Military-Today.com (English)