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Type 925 Submarine Support Ship
The Type 925 Dajiang with NATO reporting name Dajiang, or 大江 in Chinese, meaning Great River, is a type of naval auxiliary ship belonging to the People's Republic of China. Each ship is usually equipped with up to two Type 7103 DSRV class Deep Submergence Rescue Vehicles (DSRVs). The ship is designed to replace the first People's Liberation Army Navy (PLAN) submarine tender PLANS Mount Tai, and the lead ship of the Dajiang class is the Changxingdao. The Type 925 is a submarine tender that can also be used as a submarine rescue ship, and hence, it is designated as a submarine support ship (Qian-Ting Zhi-Yuan Jian, 潜艇支援舰) by Chinese. Each ship has a crew of 308 sailors and is equipped with an aft helicopter deck and hangars for 2 Z-8 Super Frelon helicopters. These large multi role naval auxiliary ships are the most fexilible type in the Chinese navy, capable of performing a variety of tasks, including serving as a submarine rescue ship (ARS), marine salvage rescue s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deep Submergence Rescue Vehicle
A deep-submergence rescue vehicle (DSRV) is a type of deep-submergence vehicle used for rescue of downed submarines and clandestine missions. While DSRV is the term most often used by the United States Navy, other nations have different designations for their vehicles. List of deep submergence rescue vehicles Australian models ASRV ''Remora'' ("Really Excellent Method Of Rescuing Aussies") was the Australian navy's DSRV. It is based on a diving bell design. Chinese models The People's Republic of China has three Type 925 Dajiang class and three Type 926 class. Each ship is equipped with either two Type 7103 DSRV or one LR7 crewed submersible undersea rescue vehicle. European models France, Norway and the UK share the NATO Submarine Rescue System programme. Italian models Italy operates , equipped with the SRV-300 submersible in a submarine rescue role * The SRV-300, built by Drass-Galeazzi, was delivered in 1999 and can operate up to depth, hosting 12 persons in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8A4 Class ROUV
The Chinese 8A4 class ROUV is a remotely operated underwater vehicle (ROUV) used to perform various underwater tasks, ranging from oil platform service to salvage and rescue missions. The 8A4 is a member of a series of related ROUVs developed by the Shenyang Institute of Automation (SIA) in the People's Republic of China (PRC). The predecessor to the 8A4 was the RECON-IV, an improved version of the American RECON-III. The 8A4 itself is an upgraded version of the American AMETEK 2006, and the 7B8 is an improved version of the 8A4. History The 8A4's origins trace back to the RECON-IV ROUV. China has operated ROUVs to support its offshore oil and salvage operations since the 1980s, such as Hysub 10 ROUVs and Hysub 40 ROUVs supplied by the Canadian firm International Submarine Engineering in British Columbia. The Shanghai Salvage Bureau deployed Hysub 40 ROUVs and proved them to be a successful platform for offshore oil drilling, salvage, and rescue missions. However, foreign-built ROU ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chongming Island
Chongming, formerly known as Chungming, is an alluvial island at the mouth of the Yangtze River in eastern China covering as of 2010. Together with the islands Changxing and Hengsha, it forms Chongming District, the northernmost area of the provincial-level municipality of Shanghai. At the time of the 2010 Chinese census, its population was . A stretch of the north shore of the island is not part of Chongming District of Shanghai but are instead two pene-exclaves of Jiangsu, formed by the connection of Chongming to the formerly-separate island of Yonglongsha. Etymology The island is named for Chongming, an early settlement on the island of Xisha that was named for its placement on relatively high and clear ground. History Present-day Chongming first developed as two separate shoals—Xisha and Dongsha—during the Wude Era (AD 618–626) of the Tang dynasty. These were initially about apart and located south of the larger island of Dongbuzhou ( t , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tonne
The tonne ( or ; symbol: t) is a unit of mass equal to 1000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton to distinguish it from the non-metric units of the short ton ( United States customary units), and the long ton ( British imperial units). It is equivalent to approximately 2204.6 pounds, 1.102 short tons, and 0.984 long tons. The official SI unit is the megagram (symbol: Mg), a less common way to express the same mass. Symbol and abbreviations The BIPM symbol for the tonne is t, adopted at the same time as the unit in 1879.Table 6 . BIPM. Retrieved on 2011-07-10. Its use is also official for the metric ton in the United States, having been adopted by the United States |
Changxing Island, Dalian
() (Changsing) is a major island located in the eastern part of Bohai Sea, off the coast of Wafangdian, Dalian, Liaoning, China. It has a population of around 60,000. General Changxing Island is located in the eastern part of Bohai Sea, off the coast of Wafangdian, Dalian, Liaoning. It is the sixth largest island in Greater China and the largest island north of the Chongming Island on the Yangtze River. Its area is , running about east to west and north to south. Traditionally based on fishing and agriculture, its economy suddenly changing to distribution, industrial and resort development. Dalian Changxing Island Seaport Industrial Area This industrial area consists of Changxing, Jiaoliu and three other islands, a total area of 350 square kilometers. It was made a Provincial Economic Development Zone by the Liaoning provincial government in January, 2002, and later in 2006, was made part of the " Five Points, One Line" industrial zone development plan. Its management c ... [...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 corre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennant Number
In the Royal Navy and other navies of Europe and the Commonwealth of Nations, ships are identified by pennant number (an internationalisation of ''pendant number'', which it was called before 1948). Historically, naval ships flew a flag that identified a flotilla or type of vessel. For example, the Royal Navy used a red burgee for torpedo boats and a pennant with an H for torpedo boat destroyers. Adding a number to the type-identifying flag uniquely identified each ship. In the current system, a letter prefix, called a ''flag superior'', identifies the type of ship, and numerical suffix, called a flag inferior, uniquely identifies an individual ship. Not all pennant numbers have a flag superior. Royal Navy systems The Royal Navy first used pennants to distinguish its ships in 1661 with a proclamation that all of his majesty's ships must fly a union pennant. This distinction was further strengthened by a proclamation in 1674 which forbade merchant vessels from flying any pennants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YouTube
YouTube is a global online video platform, online video sharing and social media, social media platform headquartered in San Bruno, California. It was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim. It is owned by Google, and is the List of most visited websites, second most visited website, after Google Search. YouTube has more than 2.5 billion monthly users who collectively watch more than one billion hours of videos each day. , videos were being uploaded at a rate of more than 500 hours of content per minute. In October 2006, YouTube was bought by Google for $1.65 billion. Google's ownership of YouTube expanded the site's business model, expanding from generating revenue from advertisements alone, to offering paid content such as movies and exclusive content produced by YouTube. It also offers YouTube Premium, a paid subscription option for watching content without ads. YouTube also approved creators to participate in Google's Google AdSens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Driveshaft
A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power and torque and rotation, usually used to connect other components of a drivetrain that cannot be connected directly because of distance or the need to allow for relative movement between them. As torque carriers, drive shafts are subject to torsion and shear stress, equivalent to the difference between the input torque and the load. They must therefore be strong enough to bear the stress, while avoiding too much additional weight as that would in turn increase their inertia. To allow for variations in the alignment and distance between the driving and driven components, drive shafts frequently incorporate one or more universal joints, jaw couplings, or rag joints, and sometimes a splined joint or prismatic joint. History The term ''driveshaft'' first appeared during the mid-19th centu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Diesel engines work by compressing only air, or air plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intelligent Water Class AUV
Intelligence (智水, Zhi Shui or Zhishui) class autonomous underwater vehicle (AUV) is a class of little known underwater vehicle developed bShipbuilding Engineering Institute (船舶工程学院)of Harbin Engineering University (HEU) for the People's Liberation Army Navy (PLAN) of the People's Republic of China (PRC). The general designer of Intelligence Water AUVs is Mr. Xu Yu-Ru (徐玉如, July 1942-February 17, 2012). The name of this class AUV, Zhi-Shui, is an abbreviation of Intelligent underwater robotic (Zhi-Neng Shui-Xia Ji-Qi-Ren, 智能水下机器人, with Zhi-Neng = Intelligent, Shui-Xia = Underwater, and Ji-Qi-Ren = Robotic). This class of AUV is developed based on the experience gained from Explorer AUV developed earlier, and the following models have been identified: *Zhishui-I, the first model which is rumored (yet to be confirmed) used as a training and teaching aid instead of being deployed in the field. Development begun in 1989 & it entered service in 1994 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Explorer AUV
Explorer (Tan Suo Zhe, 探索者) autonomous underwater vehicle (AUV) is a Chinese AUV developed in the People's Republic of China (PRC),first entering service in November 1994. It should not be confused with another two Anglo-American AUVs that share the same name: the American Autonomous Benthic Explorer AUV (ABE) built by Woods Hole Oceanographic Institution, and the British Columbia-based International Submarine Engineeringbuilt Canadian Explorer AUV, which is based on its earlier ARCS AUV.Many Chinese AUVs later developed, such as Wukong, WZODA, CR series, Exploration series, Micro Dragon series, Sea Whale series, Submerged Dragon series AUVs, are all based on experienced gained from Explorer AUV. Explorer AUV Explorer AUV is one of the projects of 863-512 subprogram of the 863 Program in PRC, developed by a joint team of research and educational establishments including the 702nd Research Institute (中国船舶重工集团公司第702研究所) of China Shipbuilding Industr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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