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HMAS Ovens
HMAS ''Ovens'' (S 70) was an ''Oberon''-class submarine of the Royal Australian Navy (RAN). She was one of six ''Oberon''s built for the Royal Australian Navy by the Scottish Scotts Shipbuilding and Engineering Company, and entered service in 1969. The vessel was named for Irishman and Australian explorer John Ovens (1788–1825) and for whom the Victorian river Ovens was named. During her career, ''Ovens'' was the first RAN submarine to deploy with the ANZUK force, and the first RAN submarine to fire an armed Mark 48 torpedo, sinking the target ship . The boat was decommissioned in 1995, and is preserved at the Western Australian Maritime Museum as a museum ship. Design and construction The ''Oberon'' class was based heavily on the preceding ''Porpoise'' class of submarines, with changes made to improve the vessels' hull integrity, sensor systems, and stealth capabilities.Chant, ''A Compedium of Armaments and Military Hardware'', pp. 167–8 Eight submarines were ordered for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMAS Ovens, Fremantle
His Majesty's Australian Ship (HMAS) (or Her Majesty's Australian Ship when the monarch is female) is a ship prefix used for commissioned units of the Royal Australian Navy (RAN). This prefix is derived from HMS (Her/His Majesty's Ship), the prefix used by the Royal Navy of the United Kingdom, and can be equally applied to warships and shore bases (as Australia follows the British tradition of referring to naval establishments as stone frigates). On 10 July 1911, King George V granted the title of Royal Australian Navy to the naval forces of Australia. At the same time, the prefix and acronym were approved for use in identifying units commissioned into the RAN. The prefix had been used prior to formal approval, with the torpedo-boat destroyer In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally develo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Displacement (nautical)
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 merc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMAS Ovens, West Australian Maritime Museum
His Majesty's Australian Ship (HMAS) (or Her Majesty's Australian Ship when the monarch is female) is a ship prefix used for commissioned units of the Royal Australian Navy (RAN). This prefix is derived from HMS (Her/His Majesty's Ship), the prefix used by the Royal Navy of the United Kingdom, and can be equally applied to warships and shore bases (as Australia follows the British tradition of referring to naval establishments as stone frigates). On 10 July 1911, King George V granted the title of Royal Australian Navy to the naval forces of Australia. At the same time, the prefix and acronym were approved for use in identifying units commissioned into the RAN. The prefix had been used prior to formal approval, with the torpedo-boat destroyer In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally develo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geelong, Victoria
Geelong ( ) (Wathawurrung: ''Djilang''/''Djalang'') is a port city in the southeastern Australian state of Victoria, located at the eastern end of Corio Bay (the smaller western portion of Port Phillip Bay) and the left bank of Barwon River, about southwest of Melbourne, the state capital of Victoria. Geelong is the second largest Victorian city (behind Melbourne) with an estimated urban population of 268,277 as of June 2018, Estimated resident population, 30 June 2018. and is also Australia's second fastest-growing city. Geelong is also known as the "Gateway City" due to its critical location to surrounding western Victorian regional centres like Ballarat in the northwest, Torquay, Great Ocean Road and Warrnambool in the southwest, Hamilton, Colac and Winchelsea to the west, providing a transport corridor past the Central Highlands for these regions to the state capital Melbourne in its northeast. The City of Greater Geelong is also a member of thGateway Cities Alliancei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Use Of The Jolly Roger By Submarines
The Jolly Roger is a symbol that has been used by submarines, primarily those of the Royal Navy Submarine Service and its predecessors. The practice came about during World War I: remembering comments by First Sea Lord Admiral Sir Arthur Wilson, who complained that submarines were "underhanded, unfair, and damned un-English" and that personnel should be hanged as pirates, Lieutenant Commander Max Horton began flying the flag after returning from successful patrols. Initially, Horton's submarine flew an additional flag after each successful patrol, but when there was no room for more, the practice was changed to a single large flag, onto which symbols indicating the submarine's achievements were sewn. The practice of flying the Jolly Roger was adopted by some other submarines during World War I, but became more widespread in World War II. Flotilla commanders began to issue flags to submarines, and procedures were drafted for usage. Although some sources report the use of the flag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clean Sweep (naval)
A "clean sweep" for a naval vessel refers to having "swept the enemy from the seas," a completely successful mission. It is traditionally indicated by hanging a broom from a mast or lashing it to the periscope of a submarine. History It is said the use of brooms in this respect originated during the 1650s, when the Dutch Admiral Maarten Tromp, after a decisive victory in the First Anglo-Dutch War, the Battle of Dungeness of 1652, hung a broom from his mast to indicate he had "swept the British from the seas" - his opponent Admiral Blake is said to have responded with the hoisting of a whip, indicating he would whip the Dutch into submission. However, both stories are legends; a broom in the seventeenth century indicated the ship was for sale. The United States Submarine Service during World War II generally considered a patrol a "clean sweep" if the sub sank every target she engaged. Individual torpedoes might miss, and convoys usually had far too many ships for all to be sunk by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Newcastle, New South Wales
Newcastle ( ; Awabakal: ) is a metropolitan area and the second most populated city in the state of New South Wales, Australia. It includes the Newcastle and Lake Macquarie local government areas, and is the hub of the Greater Newcastle area, which includes most parts of the local government areas of City of Newcastle, City of Lake Macquarie, City of Cessnock, City of Maitland and Port Stephens Council. Located at the mouth of the Hunter River, it is the predominant city within the Hunter Region. Famous for its coal, Newcastle is the largest coal exporting harbour in the world, exporting 159.9 million tonnes of coal in 2017. Beyond the city, the Hunter Region possesses large coal deposits. Geologically, the area is located in the central-eastern part of the Sydney Basin. History Aboriginal history Newcastle and the lower Hunter Region were traditionally occupied by the Awabakal and Worimi Aboriginal people, who called the area Malubimba. Based on Aboriginal language refere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SEATO
The Southeast Asia Treaty Organization (SEATO) was an international organization for collective defense in Southeast Asia created by the Southeast Asia Collective Defense Treaty, or Manila Pact, signed in September 1954 in Manila, the Philippines. The formal institution of SEATO was established on 19 February 1955 at a meeting of treaty partners in Bangkok, Thailand. The organization's headquarters was also in Bangkok. Eight members joined the organization. Primarily created to block further communist gains in Southeast Asia, SEATO is generally considered a failure because internal conflict and dispute hindered general use of the SEATO military; however, SEATO-funded cultural and educational programs left longstanding effects in Southeast Asia. SEATO was dissolved on 30 June 1977 after many members lost interest and withdrew. Origins and structure The Southeast Asia Collective Defense Treaty, or Manila Pact, was signed on 8 September 1954 in Manila, as part of the American T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenock, Scotland
Greenock (; sco, Greenock; gd, Grianaig, ) is a town and administrative centre in the Inverclyde council area in Scotland, United Kingdom and a former burgh within the historic county of Renfrewshire, located in the west central Lowlands of Scotland. It forms part of a contiguous urban area with Gourock to the west and Port Glasgow to the east. The 2011 UK Census showed that Greenock had a population of 44,248, a decrease from the 46,861 recorded in the 2001 UK Census. It lies on the south bank of the Clyde at the "Tail of the Bank" where the River Clyde deepens into the Firth of Clyde. History Name Place-name scholar William J. Watson wrote that "Greenock is well known in Gaelic as Grianáig, dative of grianág, a sunny knoll". The Scottish Gaelic place-name ''Grianaig'' is relatively common, with another (Greenock) near Callander in Menteith (formerly in Perthshire) and yet another at Muirkirk in Kyle, now in East Ayrshire. R. M. Smith in (1921) described the alternat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stonefish (mine)
Stonefish is a naval influence mine manufactured by British defence company BAE Systems. It has been exported to friendly countries such as Australia, which has both warstock and training versions of Stonefish. There has been conjecture that South Africa, Chile, Iraq, Libya and possibly other countries may have gained access to either some early Stonefish information or to similar technology. The mine is named after the venomous stonefish. Design Stonefish mines generally have two suspension lugs in order to facilitate handling operations e.g. winching. They can be deployed by fixed-wing aircraft, helicopters, surface vessels and submarines. It is a cylindrically shaped, modular weapon, comprising three separate sections which are joined together to form one unit: * launching system (e.g. nose fairing, tail-fin unit, parachute-pack and arming lanyards for air-dropped delivery) * electronics pack (incorporating safety/arming devices, target processing computer and associated fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wire-guided Missile
A wire-guided missile is a missile that is guided by signals sent to it via thin wires connected between the missile and its guidance mechanism, which is located somewhere near the launch site. As the missile flies, the wires are reeled out behind it (command guidance). This guidance system is most commonly used in anti-tank missiles, where its ability to be used in areas of limited line-of-sight make it useful, while the range limit imposed by the length of the wire is not a serious concern. The longest range wire-guided missiles in current use are limited to about . History Electrical wire guidance dates back to the early 20th century with an early example being the Lay Torpedo. A prototype ground-based electrical wire-guided torpedo was built by the Germans during World War II. The pair of deployed German guided air-delivered ordnance designs, the Fritz X and Henschel Hs 293, both used the ''Kehl-Straßburg'' radio guidance system for control. However, because the Briti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British 21 Inch Torpedo
There have been several British 21-inch (533 mm) torpedoes used by the Royal Navy since their first development just before the First World War. Torpedoes of 21 inch calibre were the largest torpedoes in common use in the RN. They were used by surface ships and submarines rather than aircraft, which used smaller 18-inch torpedoes. Mark I The first British 21-inch torpedo came in two lengths, "Short" at , and "Long" at . The explosive charge was of gun cotton increased later to . Mark II The Mark II, chiefly used by destroyers, entered service in 1914. Apart from some older British ships, it was used with the old US (destroyers-for-bases deal) Town-class destroyers provided to the UK during the early part of the Second World War. The running speed was reduced from (over 3,000 yards) for better reliability. The Mark II*, an improved Mark II, was used by battleships and battlecruisers. A wet heater design, it could run for at . Mark IV From 1912, used by destro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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