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Gumdoksuri-class Patrol Vessel
The ''Yoon Youngha''-class patrol vessel (Hangul: 윤영하급 미사일고속함) also known as PKG-class patrol vessel is a class of patrol ship of the Republic of Korea Navy. One variant is in active service and a smaller variant is planned. The first being the PKX-A or ''Yun Youngha''-class missile patrol ship (Hangul: 윤영하급 고속함), and the second the patrol boat (also known as Chamsuri-211-class patrol boat or Gumdoksuri-class patrol vessel). Development The Republic of Korea Navy (ROKN) began development of the PKG class in 2003 after a ''Chamsuri''-class (PKM-class) patrol boat was sunk during a naval clash with North Korean patrol boats on June 29, 2002. The codenamed PKX (''Patrol Killer eXperimental'') program is the patrol boat modernization project of the ROKN. The PKX consist of two main designs. The larger, missile armed PKX-A(PKG) of approximately 500 tons and the smaller gun armed PKX-B(PKMR) of approximately 200 tons. PKX-A(PKG) is planned to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Korean Won
The Korean Republic won, unofficially the South Korean won ( Symbol: ₩; Code: KRW; Korean: 대한민국 원) is the official currency of South Korea. A single won is divided into 100 jeon, the monetary subunit. The jeon is no longer used for everyday transactions, and it appears only in foreign exchange rates. The currency is issued by the Bank of Korea, based in the capital city of Seoul. Etymology The old "won" was a cognate of the Chinese yuan and Japanese yen, which were both derived from the Spanish-American silver dollar. It is derived from the hanja (, ''won''), meaning "round", which describes the shape of the silver dollar. The won was subdivided into 100 ''jeon'' (), itself a cognate of the Chinese unit of weight mace and synonymous with money in general. The current won (1962 to present) is written in hangul only and does not officially have any hanja associated with it. First South Korean won History The Korean won, Chinese yuan and Japanese yen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hae Sung
The SSM-700K C-Star (Haeseong) (, Sea Star) is a ship-launched sea-skimming surface-to-surface anti-ship cruise missile developed by the South Korean Agency for Defense Development (ADD), LIG Nex1 and the Republic of Korea Navy in 2003. The missiles are deployed on KDX-II and KDX-III destroyers as of 2006, each carrying 8 and 16 of the missiles respectively, and on s. Development history During the 1970s, the Republic of Korea Navy decided to import Exocet anti-ship missiles to deter North Korean naval provocations. Considering the fact that the Korean People's Navy was then and now mostly composed of numerous small to midsize ships, a cheap, small guided anti-ship missile was proposed. In 1978, the Korean Agency for Defense Development (ADD) started the development of the ''Hae Ryong'' anti-ship missile, and by 1987 the ROK Navy approved for the mass production of the missiles. But the ''Hae Ryong'' was fitted with a semi-active laser guidance system, limiting its tactic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imaging Infrared
Infrared thermography (IRT), thermal video and/or thermal imaging, is a process where a thermal camera captures and creates an image of an object by using infrared radiation emitted from the object in a process, which are examples of infrared imaging science. Thermographic cameras usually detect radiation in the long-infrared range of the electromagnetic spectrum (roughly 9,000–14,000 nanometers or 9–14 μm) and produce images of that radiation, called thermograms. Since infrared radiation is emitted by all objects with a temperature above absolute zero according to the black body radiation law, thermography makes it possible to see one's environment with or without visible illumination. The amount of radiation emitted by an object increases with temperature; therefore, thermography allows one to see variations in temperature. When viewed through a thermal imaging camera, warm objects stand out well against cooler backgrounds; humans and other warm-blooded animals become ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inertial Navigation System
An inertial navigation system (INS) is a navigation device that uses motion sensors (accelerometers), rotation sensors ( gyroscopes) and a computer to continuously calculate by dead reckoning the position, the orientation, and the velocity (direction and speed of movement) of a moving object without the need for external references. Often the inertial sensors are supplemented by a barometric altimeter and sometimes by magnetic sensors ( magnetometers) and/or speed measuring devices. INSs are used on mobile robots and on vehicles such as ships, aircraft, submarines, guided missiles, and spacecraft. Other terms used to refer to inertial navigation systems or closely related devices include inertial guidance system, inertial instrument, inertial measurement unit (IMU) and many other variations. Older INS systems generally used an inertial platform as their mounting point to the vehicle and the terms are sometimes considered synonymous. Overview Inertial navigation is a self-c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STX Offshore & Shipbuilding
K Shipbuilding Co., Ltd. () is a South Korean shipbuilding company. It was the world's fourth largest shipbuilder, South Korean shipyards anticipate orders owning STX Europe, Europe's second-largest shipbuilding group (divested in 2017 after bankruptcy). It has built about 700 ships over the last 40 years in Busan and Changwon Changwon () is the capital city of Gyeongsangnam-do, on the southeast coast of South Korea. With a population of 1.07 million , Changwon is South Korea's ninth-most populous city. A port city, Changwon is bordered by Masan Bay to the south, .... References External links * {{DEFAULTSORT:Stx Offshore and Shipbuilding Shipbuilding companies of South Korea Companies that have filed for bankruptcy in South Korea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Commissioning
Ship commissioning is the act or ceremony of placing a ship in active service and may be regarded as a particular application of the general concepts and practices of project commissioning. The term is most commonly applied to placing a warship in active duty with its country's military forces. The ceremonies involved are often rooted in centuries-old naval tradition. Ship naming and launching endow a ship hull with her identity, but many milestones remain before she is completed and considered ready to be designated a commissioned ship. The engineering plant, weapon and electronic systems, galley, and other equipment required to transform the new hull into an operating and habitable warship are installed and tested. The prospective commanding officer, ship's officers, the petty officers, and seamen who will form the crew report for training and familiarization with their new ship. Before commissioning, the new ship undergoes sea trials to identify any deficiencies needing co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceremonial Ship Launching
Ceremonial ship launching involves the performance of ceremonies associated with the process of transferring a vessel to the water. It is a nautical tradition in many cultures, dating back thousands of years, to accompany the physical process with ceremonies which have been observed as public celebration and a solemn blessing, usually but not always, in association with the launch itself. Ship launching imposes stresses on the ship not met during normal operation and, in addition to the size and weight of the vessel, represents a considerable engineering challenge as well as a public spectacle. The process also involves many traditions intended to invite good luck, such as christening by breaking a sacrificial bottle of champagne over the bow as the ship is named aloud and launched. Methods There are three principal methods of conveying a new ship from building site to water, only two of which are called "launching". The oldest, most familiar, and most widely used is t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead Ship
The lead ship, name ship, or class leader is the first of a series or class of ships all constructed according to the same general design. The term is applicable to naval ships and large civilian vessels. Large ships are very complex and may take as many as five to ten years to build. Improvements based on experience with building and operating the lead ship are likely to be incorporated into the design or construction of later ships in the class, so it is rare to have vessels that are identical. The second and later ships are often started before the first one is completed, launched and tested. Nevertheless, building copies is still more efficient and cost-effective than building prototypes, and the lead ship will usually be followed by copies with some improvements rather than radically different versions. The improvements will sometimes be retrofitted to the lead ship. Occasionally, the lead ship will be launched and commissioned for shakedown testing before following s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hanjin Heavy Industries
HJ Shipbuilding & Construction Company, Ltd. (Korean: 주식회사 HJ중공업, Hanja: 株式會社HJ重工業), formerly Korea Shipbuilding & Engineering Corporation (Korean: 대한조선공사, Hanja: 大韓造船公社) and Hanjin Heavy Industries & Construction Co. Ltd.) (Korean: 주식회사 한진중공업, Hanja: 株式會社韓進重工業), is a South Korean-based multinational shipbuilding company, founded in 1937 as Chosun Heavy Industries Co., Ltd. (Korean: 조선중공업 주식회사, Hanja: 朝鮮重工業株式會社). Scandals 7 July, Thousands of protesters clashed with the police in a demonstration against layoffs in Yeong-do, Busan, and Police fired water cannons with diluted tear-water solution on the crowds after warning the crowds to disperse on the streets. In late September, 2020, the Korea Development Bank (KDB), the main creditor and largest shareholder, announced it would sell all or part of its stake in HHIC. KDB owns 83.45 percent of shares i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patrol Boat
A patrol boat (also referred to as a patrol craft, patrol ship, or patrol vessel) is a relatively small naval vessel generally designed for coastal defence, border security, or law enforcement. There are many designs for patrol boats, and they generally range in size. They may be operated by a nation's navy, coast guard, police, or customs, and may be intended for marine (" blue water"), estuarine ("green water"), or river (" brown water") environments. Per their name, patrol boats are primarily used to patrol a country's exclusive economic zone (EEZ), but they may also be used in other roles, such as anti-smuggling, anti-piracy, fishery patrols, immigration law enforcement, or search and rescue. Depending on the size, organization, and capabilities of a nation's armed forces, the importance of patrol boats may range from minor support vessels that are part of a coast guard, to flagships that make up a majority of a navy's fleet. Their small size and relatively low cost make ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second Battle Of Yeonpyeong
The Battle of Yeongpyeong (or Second Battle of Yeonpyeong) (Korean: 제2 연평해전, ''Je I(2) Yeonpyeong Haejeon'') was a confrontation at sea between North Korean and South Korean patrol boats along a disputed maritime boundary near Yeonpyeong Island in the Yellow Sea in 2002. This followed a similar confrontation in 1999. Two North Korean patrol boats crossed the contested border and engaged two South Korean ''Chamsuri''-class patrol boats. The North Koreans withdrew before South Korean reinforcements arrived. Background The Northern Limit Line is considered by South Korea to be the maritime boundary between itself and North Korea, while North Korea disagrees and states that the boundary is farther south. North Korean fishing vessels often wander into the area and are frequently chased away by South Korean patrol vessels. Occasionally a North Korean patrol tries to enforce its southern claim by traversing the limit line. In 2002 one such incursion turned into a naval ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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