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21st Carrier Air Group
HMAS ''Sydney'' (R17/A214/P214/L134) was a light aircraft carrier operated by the Royal Australian Navy (RAN). She was built for the Royal Navy and was launched as HMS ''Terrible'' (93) in 1944, but was not completed before the end of World War II. The carrier was sold to Australia in 1947, completed, and commissioned into the RAN as ''Sydney'' in 1948. ''Sydney'' was the first of three conventional aircraft carriers to serve in the RAN, and operated as the navy's flagship during the early part of her career. From late 1951 to early 1952, she operated off the coast of Korea during the Korean War, making her the first carrier owned by a Commonwealth Dominion, and the only carrier in the RAN, to see wartime service. Retasked as a training vessel following the 1955 arrival of her modernised sister ship, , ''Sydney'' remained in service until 1958, when she was placed in reserve as surplus to requirements. The need for a sealift capability saw the ship modified for service a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMAS Sydney (R17) (AWM 301423)
Five ships of the Royal Australian Navy have been named HMAS ''Sydney'', after Sydney, the capital city of New South Wales. *, a Town-class light cruiser launched in 1912, decommissioned in 1928, and broken up for scrap *, a ''Leander''-class light cruiser launched in 1934, and sunk following a battle with the German auxiliary cruiser ''Kormoran'' on 19 November 1941 *, a ''Majestic''-class light aircraft carrier launched in 1944, decommissioned in 1973, and broken up for scrap *, an ''Adelaide''-class guided missile frigate launched in 1980, and decommissioned in 2015 *, a ''Hobart''-class air warfare destroyer in service since 2020 Battle honours Between them, vessels named HMAS ''Sydney'' have been awarded fourteen battle honours by the Royal Australian Navy. These include two of the only three battle honours awarded in the 20th century for an action involving a single opposing ship:The two action honours were awarded for the sinking of the German vessels ''Emden'' an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indonesia–Malaysia Confrontation
The Indonesia–Malaysia confrontation or Borneo confrontation (also known by its Indonesian / Malay name, ''Konfrontasi'') was an armed conflict from 1963 to 1966 that stemmed from Indonesia's opposition to the creation of the Federation of Malaysia. After Indonesian president Sukarno was deposed in 1966, the dispute ended peacefully and the nation of Malaysia was formed. The creation of Malaysia was a merger of the Federation of Malaya (now Peninsular Malaysia), Singapore and the British crown colonies of North Borneo and Sarawak (collectively known as British Borneo, now East Malaysia) in September 1963. Vital precursors to the conflict included Indonesia's policy of confrontation against Dutch New Guinea from March–August 1962 and the Indonesia-backed Brunei revolt in December 1962. Malaysia had direct military support from Great Britain, Australia, and New Zealand. Indonesia had indirect support from the USSR and China, thus making it an episode of the Cold Wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mirror Landing Aid
An optical landing system (OLS) (nicknamed "meatball" or simply "ball") is used to give glidepath information to pilots in the terminal phase of landing on an aircraft carrier. From the beginning of aircraft landing on ships in the 1920s to the introduction of OLSs, pilots relied solely on their visual perception of the landing area and the aid of the Landing Signal Officer (LSO in the U.S. Navy, or "batsman" in the Commonwealth navies). LSOs used coloured flags, cloth paddles and lighted wands. The OLS was developed after World War II by the British and was deployed on U.S. Navy carriers from 1955. In its developed form, the OLS consists of a horizontal row of green lights, used as a reference, and a column of vertical lights. The vertical lights signal whether the aircraft is too high, too low, or at the correct altitude as the pilot descends the glide slope towards the carrier's deck. Other lights give various commands and can be used to require the pilot to abort the landing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angled Flight Deck
The flight deck of an aircraft carrier is the surface from which its aircraft take off and land, essentially a miniature airfield at sea. On smaller naval ships which do not have aviation as a primary mission, the landing area for helicopters and other VTOL aircraft is also referred to as the flight deck. The official U.S. Navy term for these vessels is "air-capable ships". Flight decks have been in use upon ships since 1910, the American pilot Eugene Ely being the first individual to take off from a warship. Initially consisting of wooden ramps built over the forecastle of capital ships, a number of battlecruisers, including the British and , the American and , and the Japanese Japanese aircraft carrier Akagi, Akagi and battleship Japanese aircraft carrier Kaga, Kaga, were converted to aircraft carriers during the interwar period. The first aircraft carrier to feature a full-length flight deck, akin to the configuration of the modern vessels, was the converted liner . The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arrester Gear
An arresting gear, or arrestor gear, is a mechanical system used to rapidly decelerate an aircraft as it lands. Arresting gear on aircraft carriers is an essential component of naval aviation, and it is most commonly used on CATOBAR and STOBAR aircraft carriers. Similar systems are also found at land-based airfields for expeditionary or emergency use. Typical systems consist of several steel wire ropes laid across the aircraft landing area, designed to be caught by an aircraft's tailhook. During a normal arrestment, the tailhook engages the wire and the aircraft's kinetic energy is transferred to hydraulic damping systems attached below the carrier deck. There are other related systems which use nets to catch aircraft wings or landing gear. These ''barricade'' and ''barrier'' systems are only used for emergency arrestments for aircraft without operable tailhooks. History Arresting cable systems were invented by Hugh Robinson and were utilized by Eugene Ely on his first lan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elevator
An elevator or lift is a cable-assisted, hydraulic cylinder-assisted, or roller-track assisted machine that vertically transports people or freight between floors, levels, or decks of a building, vessel, or other structure. They are typically powered by electric motors that drive traction cables and counterweight systems such as a hoist, although some pump hydraulic fluid to raise a cylindrical piston like a jack. In agriculture and manufacturing, an elevator is any type of conveyor device used to lift materials in a continuous stream into bins or silos. Several types exist, such as the chain and bucket elevator, grain auger screw conveyor using the principle of Archimedes' screw, or the chain and paddles or forks of hay elevators. Languages other than English, such as Japanese, may refer to elevators by loanwords based on either ''elevator'' or ''lift''. Due to wheelchair access laws, elevators are often a legal requirement in new multistory buildings, espec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Admiralty
The Admiralty was a department of the Government of the United Kingdom responsible for the command of the Royal Navy until 1964, historically under its titular head, the Lord High Admiral – one of the Great Officers of State. For much of its history, from the early 18th century until its abolition, the role of the Lord High Admiral was almost invariably put "in commission" and exercised by the Lords Commissioner of the Admiralty, who sat on the governing Board of Admiralty, rather than by a single person. The Admiralty was replaced by the Admiralty Board in 1964, as part of the reforms that created the Ministry of Defence and its Navy Department (later Navy Command). Before the Acts of Union 1707, the Office of the Admiralty and Marine Affairs administered the Royal Navy of the Kingdom of England, which merged with the Royal Scots Navy and the absorbed the responsibilities of the Lord High Admiral of the Kingdom of Scotland with the unification of the Kingdom of Gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Australian Navy Reserve
The Royal Australian Naval Reserve (RANR) is the volunteer reserve force of the Royal Australian Navy in Australia. The current Royal Australian Naval Reserve was formed in June 1973 by merging the former RANR (Seagoing) and the Royal Australian Naval Volunteer Reserve Royal Australian Naval Volunteer Reserve (RANVR) was a reserve force of the Royal Australian Navy. Formation In late 1920, the Navy Board proposed the creation of an Royal Australian Naval Volunteer Reserve scheme, with approaches made to yac .... External links A brief history of the Royal Australian Naval Reserve, from 1863 to the present day Accessed 9 April 2018. {{Royal Australian Navy Royal Australian Navy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draught (hull)
The draft or draught of a ship's hull is the vertical distance between the waterline and the bottom of the hull (keel). The draught of the vessel is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if deployed. Draft determines the minimum depth of water a ship or boat can safely navigate. The related term air draft is the maximum height of any part of the vessel above the water. The more heavily a vessel is loaded, the deeper it sinks into the water, and the greater its draft. After construction, the shipyard creates a table showing how much water the vessel displaces based on its draft and the density of the water (salt or fresh). The draft can also be used to determine the weight of cargo on board by calculating the total displacement of water, accounting for the content of the ship's bunkers, and using Archimedes' principle. The closely related term "trim" is defined as the difference between the forward and aft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beam (nautical)
The beam of a ship is its width at its widest point. The maximum beam (BMAX) is the distance between planes passing through the outer extremities of the ship, beam of the hull (BH) only includes permanently fixed parts of the hull Hull may refer to: Structures * Chassis, of an armored fighting vehicle * Fuselage, of an aircraft * Hull (botany), the outer covering of seeds * Hull (watercraft), the body or frame of a ship * Submarine hull Mathematics * Affine hull, in affi ..., and beam at waterline (BWL) is the maximum width where the hull intersects the surface of the water. Generally speaking, the wider the beam of a ship (or boat), the more initial stability it has, at the expense of secondary stability in the event of a capsize, where more energy is required to right the vessel from its inverted position. A ship that heels on her ''beam ends'' has her deck beams nearly vertical. Typical values Typical length-to-beam ratios ( aspect ratios) for small sailboats are fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Displacement (ship)
The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, tonnes are more commonly used. Ship displacement varies by a vessel's degree of load, from its empty weight as designed (known as "lightweight tonnage") to its maximum load. Numerous specific terms are used to describe varying levels of load and trim, detailed below. Ship displacement should not be confused with measurements of volume or capacity typically used for commercial vessels and measured by tonnage: net tonnage and gross tonnage. Calculation The process of determining a vessel's displacement begins with measuring its draft.George, 2005. p.5. This is accomplished by means of its "draft marks" (or "load lines"). A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Breaking
Ship-breaking (also known as ship recycling, ship demolition, ship dismantling, or ship cracking) is a type of ship disposal involving the breaking up of ships for either a source of parts, which can be sold for re-use, or for the extraction of raw materials, chiefly scrap. Modern ships have a lifespan of 25 to 30 years before corrosion, metal fatigue and a lack of parts render them uneconomical to operate. Ship-breaking allows the materials from the ship, especially steel, to be recycled and made into new products. This lowers the demand for mined iron ore and reduces energy use in the steelmaking process. Fixtures and other equipment on board the vessels can also be reused. While ship-breaking is sustainable, there are concerns about the use by poorer countries without stringent environmental legislation. It is also labour-intensive, and considered one of the world's most dangerous industries. In 2012, roughly 1,250 ocean ships were broken down, and their average age ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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