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Chinese Frigate Siping (544)
''Siping'' (519) was a Type 053 frigate, Type 053H frigate of the People's Liberation Army Navy. On 28 July 2010, she was renamed to ''Lushun''. Development and design The class have four anti-ship Silkworm (missile)#SY-1, SY-1s in two twin-box launchers, armaments consisted to two single Type 79 100 mm naval gun, 100mm dual-purpose hand-loaded guns with fire control by a very simple stereoscopic rangefinder, limiting the guns to effective fire against surface targets in daylight/clear weather only. The six twin 37 mm automatic air defense gun M1939 (61-K), 37mm short-range anti-aircraft guns were all locally controlled, severely limiting their effectiveness. These ships are equipped with Chinese Sonar, SJD-3 sonar, which is modification of Stenka-class patrol boat, Soviet Tamir-11 (MG-11, with NATO reporting name Stag Hoof) hull mounted sonar: instead of being fixed to the hull, SJD-3 has a telescoping arm, so when not in use, the sonar is stored in the hull, and when deplo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siping, Jilin
Siping (), formerly Ssupingkai (), is a prefecture-level city in the west of Jilin province, People's Republic of China. Located in the middle of the Songliao Plain and at the intersection of Jilin, Liaoning and Inner Mongolia, Siping covers an area of . At the 2020 census, Siping has a total population of 1,814,733 inhabitants of whom 627,957 lived in 2 urban districts. History Siping's history can be stretched to 3000 years ago during Shang Dynasty. The Yan (state), Kingdom of Yan Ruins indicate that the Han Chinese People started moving into Northeast region of China during the Spring and Autumn period. Ancient ethnic tribes such as the Buyeo kingdom, Fuyu, the Goguryeo, the Khitan people, Khitans, the Jurchen people, Jurchen, the Mongols, the Manchus, and Koreans have left behind cultural artifacts, including Hanzhou, Xinzhou, and the Yehe Tribe Cultural Artifacts. Yehe Town in Siping is also the hometown of two empresses of the Qing Dynasty, Empress Dowager Cixi and Empress ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helipad
A helipad is a landing area or platform for helicopters and powered lift aircraft. While helicopters and powered lift aircraft are able to operate on a variety of relatively flat surfaces, a fabricated helipad provides a clearly marked hard surface away from obstacles where such aircraft can land safely. Larger helipads, intended for use by helicopters and other vertical take-off and landing aircraft (VTOL), may be called ''vertiports.'' An example is Vertiport Chicago, which opened in 2015. Usage Helipads may be located at a heliport or airport where fuel, air traffic control and service facilities for aircraft are available. Most helipads are located remote from populated areas due to sounds, winds, space and cost constraints. However, some skyscrapers maintain a helipad on their roofs in order to accommodate air taxi services. Some basic helipads are built on top of highrise buildings for evacuation in case of a major fire outbreak. Major police departments may use a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Training Ship
A training ship is a ship used to train students as sailors. The term is mostly used to describe ships employed by navies to train future officers. Essentially there are two types: those used for training at sea and old hulks used to house classrooms. The hands-on aspect provided by sail training has also been used as a platform for everything from semesters at sea for undergraduate oceanography and biology students, marine science and physical science for high school students, to character building for at-risk youths. Notable training ships Royal Navy * * * * * * * ''Cornwall'' * * * * * * '' Indefatigable'' * , including adjacent * * * * ''Mount Edgcumbe'' * * * '' Warspite'' (1877) * '' Warspite'' (1922) * * '' Wellesley'' * Other navies * Algerian Navy ** '' El-Mellah'' * Argentine Navy ** ** * Bangladesh Navy ** BNS ''Shaheed Ruhul Amin'' * Brazilian Navy ** ''Cisne Branco'' * Bulgarian Navy ** * Royal Canadian Navy ** (sail training) ** HMCS ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dalian Naval Academy
Dalian Naval Academy () is one of the higher education institutes of the Chinese People's Liberation Army Navy and is located in Dalian, Liaoning. It was established in 1949 as the first naval academy of the Chinese People's Liberation Army and was changed to the current name in 1986. Its address is 667, Jiefang Road, Zhongshan District, Dalian, and is just north of Laohutan (), a popular resort place that houses the Dalian Laohutan Ocean Park. Zhang Zhannan, Wu Shengli and others are in the list of the former heads of this academy. See also * Chinese People's Liberation Army Navy The People's Liberation Army Navy (PLAN; ), also known as the People's Navy, Chinese Navy, or PLA Navy, is the maritime service branch of the People's Liberation Army. The PLAN traces its lineage to naval units fighting during the Chines ... External links Dalian Naval Academy (Chinese Forces Net) with a picture of the entrance gate (Turkish Naval Academy Student Magazine: Pusula) (in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commissioned (ship)
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 correct ... [...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 th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combined Diesel And Gas
Combined diesel and gas (CODAG) is a type of propulsion system for ships that need a maximum speed that is considerably faster than their cruise speed, particularly warships like modern frigates or corvettes. Pioneered by Germany with the , a CODAG system consists of diesel engines for cruising and gas turbines that can be switched on for high-speed transits. In most cases the difference of power output from diesel engines alone to diesel and turbine power combined is too large for controllable-pitch propellers to limit the rotations so that the diesels cannot continue to operate without changing the gear ratios of their transmissions. Because of that, special multi-speed gearboxes are needed. This contrasts to combined diesel or gas (CODOG) systems, which couple the diesels with a simple, fixed ratio gearbox to the shaft, but disengage the diesel engines when the turbine is powered up. For an example the new CODAG-propelled s of the Royal Norwegian Navy, the gear ratio for t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 051 Destroyer
The Type 051 destroyer (NATO/ OSD Luda-class destroyer) was a class of guided missile destroyers based on the hull of the Soviet deployed by China. It was the first guided missile destroyer fielded by the People's Liberation Army Navy (PLAN), and the first designed and built in China. 17 were built from 1970 to 1990; it was not until the 21st century that China would again build a class in such large numbers.Cole: page 24 NATO/OSD broadly grouped variants from refits and newer construction under the Luda I, Luda II,Jane's Warship Recognition Guide: page 74 Luda III,Jane's Warship Recognition Guide: page 76 and Luda IV classes. History The PLAN began designing a warship armed with guided missiles in 1960 based on the , with features from the , but the Sino-Soviet split stopped work. Work resumed in 1965Forecast International: page 4 with nine ships being ordered.Jane's Fighting Ships 2004-2005: p. 127 Construction started in 1968, with trials beginning in 1971. The ships nomina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NATO Reporting Name
NATO reporting names are code names for military equipment from Russia, China, and historically, the Eastern Bloc (Soviet Union and other nations of the Warsaw Pact). They provide unambiguous and easily understood English words in a uniform manner in place of the original designations, which either may have been unknown to the Western world at the time or easily confused codes. For example, the Russian bomber jet Tupolev Tu-160 is simply called "Blackjack". NATO maintains lists of the names. The assignment of the names for the Russian and Chinese aircraft was once managed by the five-nation Air Standardization Coordinating Committee (ASCC), but that is no longer the case. American variations The United States Department of Defense (DOD) expands on the NATO reporting names in some cases. NATO refers to surface-to-air missile systems mounted on ships or submarines with the same names as the corresponding land-based systems, but the US DoD assigns a different series of numbers with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stenka-class Patrol Boat
The Stenka class is the NATO reporting name for a class of patrol boats built for the Soviet Navy and Soviet Allies. The Soviet designation was Project 205P ''Tarantul'' (not to be confused with the ). The boats are an anti-submarine (ASW) patrol boat version of the . Design Project 205P Stenka is a variant of the Project 205 Osa-class missile boat. The Stenka used the hull of the Osa class and had a slightly larger crew. The development office of the Almaz Shipyard in Leningrad used the standardized components of the Osa missile patrol boat, in order to develop an ASW boat. The anti-ship missile launch containers were replaced by four torpedo tubes but the anti-ship missile related structures and equipment were retained. The living spaces in the Stenka were improved for long patrol endurance by raising the superstructure in order to create more usable space inside, compared to the Project 205 Osa missile boat. They also installed a more powerful air conditioner. The drive sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonar
Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigation, navigate, measure distances (ranging), communicate with or detect objects on or under the surface of the water, such as other vessels. "Sonar" can refer to one of two types of technology: ''passive'' sonar means listening for the sound made by vessels; ''active'' sonar means emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. Acoustic location in air was used before the introduction of radar. Sonar may also be used for robot navigation, and SODAR (an upward-looking in-air sonar) is used for atmospheric investigations. The term ''sonar'' is also used for the equipment used to generate and receive the sound. The acoustic frequencies used in sonar systems vary from very low (infrasonic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
37 Mm Automatic Air Defense Gun M1939 (61-K)
The 37 mm automatic air defense gun M1939 (61-K) (russian: 37-мм автоматическая зенитная пушка образца 1939 года (61-К)) is a Soviet 37 mm calibre anti-aircraft gun developed during the late 1930s and used during World War II. The land-based version was replaced in Soviet service by the AZP S-60 during the 1950s. Guns of this type were successfully used throughout the Eastern Front against dive bombers and other low- and medium-altitude targets. It also had some usefulness against lightly armoured ground targets. Development The Soviet Navy purchased a number of Bofors 25 mm Model 1933 guns in 1935, trials of the weapon were successful and it was decided to develop a 45 mm version of the weapon designated the 49-K. The development under the guidance of leading Soviet designers M. N. Loginov, I. A. Lyamin and L. V. Lyuliev was successful, but the army thought that the 45 mm calibre was a little too large for a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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