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RFA Oakleaf (A111)
RFA ''Oakleaf'' (A111) was a Leaf class tanker, Leaf-class fleet support tanker, formerly of the Royal Fleet Auxiliary, and the second ship to bear the name. Formerly the Sweden, Swedish vessel MV ''Oktania'', built by A. B. Uddevalla, Sweden, and completed in 1981, ''Oakleaf'' was added to the Royal Fleet Auxiliary in 1986, before being decommissioned in 2007. Role As well as their role of replenishing warships at sea, support tankers perform the bulk movement of fuels between Ministry of Defense (Navy) depots. The ''Oakleaf'' had three Leaf-class sisters - RFA Brambleleaf (A81), ''Brambleleaf'', RFA Bayleaf (A109), ''Bayleaf'' and RFA Orangeleaf (A110), ''Orangeleaf''. All four were originally designed as commercial tankers and underwent major conversions to bring them up to Royal Fleet Auxiliary standards and equip them for naval support. These involved adding a considerable amount of electronics, both in communications and navigational aids, fitting two replenishment rigs a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RFA Oakleaf A111
RFA may refer to: Government and private organizations * Radio Free Asia, a private news broadcaster and publisher in East Asia, funded in part by the U.S. government * Renewable Fuels Agency, a former UK renewable fuel regulatory agency * Renewable Fuels Association, a body representing the U.S. ethanol industry * République fédérale d'Allemagne, the French acronym for the Federal Republic of Germany * Rocket Factory Augsburg, a German New Space start-up located in Augsburg. Military * Royal Field Artillery, a unit of the British Army from 1899 to 1924 * Royal Fleet Auxiliary, a civilian-crewed fleet owned by the United Kingdom's Ministry of Defence Sports * Restricted free agent, in professional sports * Resurrection Fighting Alliance, a former mixed martial arts promotion based in the United States * Rugby Fives Association, the governing body for the sport of Rugby Fives Other uses * Radiofrequency ablation, a medical procedure in which tissue is burned away using elec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derrick
A derrick is a lifting device composed at minimum of one guyed mast, as in a gin pole, which may be articulated over a load by adjusting its guys. Most derricks have at least two components, either a guyed mast or self-supporting tower, and a boom hinged at its base to provide articulation, as in a ''stiffleg'' derrick. The most basic type of derrick is controlled by three or four lines connected to the top of the mast, which allow it both to move laterally and cant up and down. To lift a load, a separate line runs up and over the mast with a hook on its free end, as with a crane. Forms of derricks are commonly found aboard ships and at docking facilities. Some large derricks are mounted on dedicated vessels, and known as floating derricks and sheerlegs. The term derrick is also applied to the framework supporting a drilling apparatus in an oil rig. The derrick derives its name from a type of gallows named after Thomas Derrick, an Elizabethan era English executioner. Types ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tankers Of The Royal Fleet Auxiliary
Tanker may refer to: Transportation * Tanker, a tank crewman (US) * Tanker (ship), a ship designed to carry bulk liquids ** Chemical tanker, a type of tanker designed to transport chemicals in bulk ** Oil tanker, also known as a petroleum tanker ** LNG carrier, a ship designed for transporting liquefied natural gas * Tank car, a railroad freight car designed for carrying bulk liquids * Tank truck, a heavy road vehicle designed for carrying bulk liquids * Fire tanker, a firefighting vehicle used to carry large amounts of water to a fire * Air tanker, an aircraft used in Aerial firefighting * Tanker (aircraft), an aircraft designed for in-flight refueling * Tanker 910, a specific aircraft used to drop water or retardant on fires in California * Tanker Pacific, a Singapore-based shipping company Other * André Tanker (1941–2003), Trinidadian musician and composer * ''Tanker'' (album), a 1988 album by Bailter Space * Tanker boot, a laceless military boot * Tanker, titular hippo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aliağa
Aliağa is a town and a district of Izmir Province in the Aegean Region of Turkey. The town is situated at about north of Izmir. Aliağa has a large port, mainly for oil and bulk cargo. Its economic activity is based on tourism, shipbreaking, and an oil refinery. Overview and history Aliağa lies in the heart of ancient Aeolia. The town was named after a member of the influential Karaosmanoğulları ayan family, Karaosmanoğlu Ali Ağa, who owned an estate here. It was a township in Menemen district in 1937 and became a municipality in 1952. It finally separated from Menemen and became a district on 21 January 1982. The remains of the ancient city of Myrina are within the boundaries of the district, located at about fifteen km north of Aliağa centre. Another ancient site is the yet unexplored Gryneion, near Şakran township on the peninsula, to the south of the center town, also at a distance of . Visitors also often use the road from Aliağa to visit the remains of Aig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMNB Portsmouth
His Majesty's Naval Base, Portsmouth (HMNB Portsmouth) is one of three operating bases in the United Kingdom for the Royal Navy (the others being HMNB Clyde and HMNB Devonport). Portsmouth Naval Base is part of the city of Portsmouth; it is located on the eastern shore of Portsmouth Harbour, north of the Solent and the Isle of Wight. Until the early 1970s, it was officially known as Portsmouth Royal Dockyard (or HM Dockyard, Portsmouth); thereafter the term 'Naval Base' gained currency, acknowledging a greater focus on personnel and support elements alongside the traditional emphasis on building, repairing and maintaining ships. In 1984 Portsmouth's Royal Dockyard function was downgraded and it was formally renamed the 'Fleet Maintenance and Repair Organisation' (FMRO). The FMRO was privatized in 1998, and for a time (from 2002 to 2014), shipbuilding, in the form of Shipbuilding#Modern shipbuilding manufacturing techniques, block construction, returned. Around 2000, the designat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montserrat
Montserrat ( ) is a British Overseas Territories, British Overseas Territory in the Caribbean. It is part of the Leeward Islands, the northern portion of the Lesser Antilles chain of the West Indies. Montserrat is about long and wide, with roughly of coastline. It is nicknamed "The Emerald Isle of the Caribbean" both for its resemblance to coastal Ireland and for the Irish diaspora, Irish ancestry of many of its inhabitants. Montserrat is the only non-fully sovereign full member of the Caribbean Community and the Organisation of Eastern Caribbean States. On 18 July 1995, the previously dormant Soufrière Hills volcano, in the southern part of the island, became active. Eruptions destroyed Montserrat's Georgian era capital city of Plymouth, Montserrat, Plymouth. Between 1995 and 2000, two-thirds of the island's population was forced to flee, primarily to the United Kingdom, leaving fewer than 1,200 people on the island in 1997 (rising to nearly 5,000 by 2016). The volcanic ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soufrière Hills
The Soufrière Hills are an active, complex stratovolcano with many lava domes forming its summit on the Caribbean island of Montserrat. After a long period of dormancy, the Soufrière Hills volcano became active in 1995 and has continued to erupt ever since. Its eruptions have rendered more than half of Montserrat uninhabitable, destroying the capital city, Plymouth, and causing widespread evacuations: about two-thirds of the population have left the island. Chances Peak in the Soufrière Hills was the highest summit on Montserrat until the mid-1990s, but it has since been eclipsed by various rising and falling volcanic domes during the recent volcanic activity. The volcano is andesitic in nature, and the current pattern of activity includes periods of lava dome growth, punctuated by brief episodes of dome collapse which result in pyroclastic flows, ash venting, and explosive eruption. The volcano is monitored by the Montserrat Volcano Observatory. Volcanic gas emissions fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operation Uphold Democracy
Operation Uphold Democracy was a military intervention designed to remove the military regime installed by the 1991 Haitian coup d'état that overthrew the elected President Jean-Bertrand Aristide. The operation was effectively authorized by the 31 July 1994 United Nations Security Council Resolution 940. History The operation began with the alert of United States and its allies for a forced entry into the island nation of Haiti. U.S. Navy, Coast Guard, and Air Force elements staged to Puerto Rico and southern Florida to prepare to support the airborne invasion, spearheaded by elements of the Joint Special Operations Command (HQ, 75th Ranger Regiment), followed by 3rd Special Forces Group, the U.S. Army 7th Transportation Group (Army watercraft and terminal elements) and the 10th Mountain Division. Some of these elements were staged out of Hunter Army Airfield and Guantanamo Bay Naval Base. The 1st Brigade of the 10th Mountain Division deployed to Haiti aboard and . Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable-pitch Propeller (marine)
In marine propulsion, a variable-pitch propeller is a type of propeller with blades that can be rotated around their long axis to change the blade pitch. Reversible propellers—those where the pitch can be set to negative values—can also create reverse thrust for braking or going backwards without the need to change the direction of shaft revolution. A controllable pitch propeller (CPP) can be efficient for the full range of rotational speeds and load conditions, since its pitch will be varied to absorb the maximum power that the engine is capable of producing. When fully loaded, a vessel will need more propulsion power than when empty. By varying the propeller blades to the optimal pitch, higher efficiency can be obtained, thus saving fuel. A vessel with a VPP can accelerate faster from a standstill and can decelerate much more effectively, making stopping quicker and safer. A CPP can also improve vessel maneuverability by directing a stronger flow of water onto the ru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JP-5
Jet fuel or aviation turbine fuel (ATF, also abbreviated avtur) is a type of aviation fuel designed for use in aircraft powered by gas-turbine engines. It is colorless to straw-colored in appearance. The most commonly used fuels for commercial aviation are Jet A and Jet A-1, which are produced to a standardized international specification. The only other jet fuel commonly used in civilian turbine-engine powered aviation is Jet B, which is used for its enhanced cold-weather performance. Jet fuel is a mixture of a variety of hydrocarbons. Because the exact composition of jet fuel varies widely based on petroleum source, it is impossible to define jet fuel as a ratio of specific hydrocarbons. Jet fuel is therefore defined as a performance specification rather than a chemical compound. Furthermore, the range of molecular mass between hydrocarbons (or different carbon numbers) is defined by the requirements for the product, such as the freezing point or smoke point. Kerosene-type jet f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Fuel
Diesel fuel , also called diesel oil, is any liquid fuel specifically designed for use in a diesel engine, a type of internal combustion engine in which fuel ignition takes place without a spark as a result of compression of the inlet air and then injection of fuel. Therefore, diesel fuel needs good compression ignition characteristics. The most common type of diesel fuel is a specific fractional distillate of petroleum fuel oil, but alternatives that are not derived from petroleum, such as biodiesel, biomass to liquid (BTL) or gas to liquid (GTL) diesel are increasingly being developed and adopted. To distinguish these types, petroleum-derived diesel is sometimes called petrodiesel in some academic circles. In many countries, diesel fuel is standardised. For example, in the European Union, the standard for diesel fuel is EN 590. Diesel fuel has many colloquial names; most commonly, it is simply referred to as ''diesel''. In the United Kingdom, diesel fuel for on-road use is c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
