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PO-class
The PO-class consists of three small multi-role transport ships. They were built for the Yugoslav Navy by indigenous design made by Brodoprojekt Rijeka in the early 1980s at the BSO shipyard, Split, known as the Lubin class by NATO. They had a primary function of replenishing warships of the Yugoslav Navy with weapons, and as such were designated PO, short for ( sr, Pomoćni oružar) (Ammunition Auxiliary)Prézelin and Baker 1990, p. 941. The first of class, ''Lubin'' (PO-91), remains in service, now in the Montenegrin Navy. Characteristics The ships has long, with a beam of and a mean draught of . Displacement was standard and full load. Two B&W-Alpha diesel engines with a total rating of drive two shafts, giving a speed of . The ship had a range of at . The ship was fitted with a bow visor and bow ramp to aid loading and unloading of vehicles, with two slewing cranes on the upper deck. The main cargo deck could accommodate up to six small tanks like PT-76, while 150 full ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PO-92 Ugor
''Ugor'' (PO-92) was a PO-class logistic transport ship of the Yugoslav Navy, built in 1983 and classed as an ammunition auxiliary. Later sold into merchant service, the ship traded under Montenegrin ownership with the names ''Kairos I'' and ''Boka Star''. She was seized in 2002 by the Croatian authorities for arms smuggling and later demolished as ''Star''. Characteristics ''Ugor'' was long, with a beam of and a mean draught of . Displacement was standard and full load. Two B&W-Alpha diesel engines with a total rating of drove two shafts, giving a speed of . The ship had a range of at . The ship was of Ro-Ro configuration, fitted with a bow visor and bow ramp to aid loading and unloading of vehicles, and with two slewing cranes on the upper deck. The main cargo deck could accommodate up to six tanks, while 150 fully armed troops could be carried in addition to the ship's crew of 43. Naval service Built in 1983, ''Ugor'' (PO-92) was the second ship, after ''Lubin'' (PO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montenegrin Navy
The Montenegrin Navy ( Montenegrin: ''Mornarica Vojske Crne Gore'') is the naval branch of the military of Montenegro. The Montenegrin Navy was established in 2006 following the secession of Montenegro from the State Union of Serbia and Montenegro. Nearly all of the navy's equipment was inherited from the armed forces of the State Union—as Montenegro contained the entire coastline of the former union, it retained practically the entire naval force. Units & structure * Navy ( Montenegrin: ''Mornarica'') ** Naval Surface Forces (Montenegrin: ''Površinske pomorske snage'') *** Patrol Boat 33 (Montenegrin: ''Patrolni Brod 33'') *** Patrol Boat 34 (Montenegrin: ''Patrolni Brod 34'') *** Rescue Detachment (Montenegrin: ''Odred za spašavanje'') ** Observation Forces (Montenegrin: ''Snage za osmatranje'') *** Coastal Surveillance Detachment (Montenegrin: ''Odred za nadzor mora'') ** Special Forces (Montenegrin: ''Specijalne snage'') *** Marine Detachment (Montenegrin: ''Pomorski ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brodosplit
Brodosplit is the largest shipyard in Croatia, located in the Supaval bay, on the north side of the Split peninsula. History The company was founded in 1922 by a merger of shipyards in the area and has been in its current location since 1932. With significant development in the latter half of the 20th century, it has grown into one of Croatia's largest shipyards. When Croatia was a part of Socialist Yugoslavia, the Yugoslav Navy's submarines designed by Zagreb's Brodarski Institute were built in this shipyard, which was called ''Brodogradilište specijalnih objekata'' (Special objects' shipyard.) After the breakup of Yugoslavia, Brodosplit became a joint stock company, with the Government of Croatia as the majority holder. It employed nearly 4,000 people and had experience in designing and building a wide range of ships for an international market, diesel engines licensed by B&W (MAN) engine. In 2013, it was privatised and acquired by the Croatian manufacturing company DIV, pen ... [...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 mer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alligator-class Landing Ship
The Soviet designation Project 1171 (Tapir-class) landing ship ( NATO reporting name: Alligator) is a class of Soviet / Russian general purpose, beachable amphibious warfare ships (Soviet classification: large landing ship, russian: БДК, большой десантный корабль). History In Soviet post-World War II analysis of amphibious operations, the recommendation was made that the Soviet Navy should start building dedicated amphibious ships. Among the first ships, launching in 1967, was the of medium landing ships, whose 900-ton vessels could transport six tanks and 180 troops. A newer type of amphibious warship followed in the late 1950s, a true landing ship tank (LST) that was named Project 1171 and also called ''Tapir''. Labelled "Large Landing Ship", its displacement was 4,360 tons full load and could transport up to 313 troops and 20 tanks. Additional vehicles could be stored on the upper deck. NATO gave these ships the code name "Alligator", and several su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ropucha-class Landing Ship
The Ropucha class (Polish for ''Toad''), Soviet designation Project 775, is a class of landing ships (large landing ship in Soviet classification) built in Poland for the Soviet Navy. The ships were built in Poland in the Stocznia Północna shipyards in Gdańsk. Designed for beach landings, they can carry a 450-ton cargo. The ships have both bow- and stern-doors for loading and unloading vehicles, and the of vehicle deck stretches the length of the hull. Up to 25 armored personnel carriers can be embarked. While designed for roll-on/roll-off operations, they can also be loaded using dockside cranes. For this purpose there is a long sliding hatch-cover above the bow section for access to the vehicle deck. There are no facilities for helicopters. In total, 28 ships of this type were commissioned from 1975 to 1991. The last three ships were of the improved variant Project 775M, also called Ropucha II. These have improved defensive armament and accommodation for an increased ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kumbhir-class Tank Landing Ship
''Kumbhir''-class landing ships are medium amphibious warfare vessels of the Indian Navy.Indian Naval Ships-Landing Ship Tank - Kumbhir Class Ships of the class Gallery See also * *List of ships of the Indian Navy
This is a list of ships of the Indian Navy. It covers both the pre-independence Ro ...
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Landing Ship, Tank
Landing Ship, Tank (LST), or tank landing ship, is the naval designation for ships first developed during World War II (1939–1945) to support amphibious operations by carrying tanks, vehicles, cargo, and landing troops directly onto shore with no docks or piers. This enabled amphibious assaults on almost any beach. The LST had a highly specialized design that enabled ocean crossings as well as shore groundings. The bow had a large door that could open, deploy a ramp and unload vehicles. The LST had a flat keel that allowed the ship to be beached and stay upright. The twin propellers and rudders had protection from grounding. The LSTs served across the globe during World War II including in the Pacific War and in the European theatre. The first tank-landing ships were built to British requirements by converting existing ships; the UK and the US then collaborated upon a joint design. The British ships were used in late 1942 during the Allied invasion of Algeria, by 1943 LST ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RO-RO
Roll-on/roll-off (RORO or ro-ro) ships are cargo ships designed to carry wheeled cargo, such as cars, motorcycles, trucks, semi-trailer trucks, buses, trailers, and railroad cars, that are driven on and off the ship on their own wheels or using a platform vehicle, such as a self-propelled modular transporter. This is in contrast to lift-on/lift-off (LoLo) vessels, which use a crane to load and unload cargo. RORO vessels have either built-in or shore-based ramps or ferry slips that allow the cargo to be efficiently rolled on and off the vessel when in port. While smaller ferries that operate across rivers and other short distances often have built-in ramps, the term RORO is generally reserved for large oceangoing vessels. The ramps and doors may be located in the stern, bow, or sides, or any combination thereof. Description Types of RORO vessels include ferries, cruiseferries, cargo ships, barges, and RoRo service for air deliveries. New automobiles that are transported b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bow Visor
A bow visor is a feature of some ships, in particular ferries and roll-on/roll-off Roll-on/roll-off (RORO or ro-ro) ships are cargo ships designed to carry wheeled cargo, such as cars, motorcycles, trucks, semi-trailer trucks, buses, trailers, and railroad cars, that are driven on and off the ship on their own wheels or using ... ships, that allows the bow to articulate up and down, providing access to the cargo ramp and storage deck near the water line. In modern ferry design over the last 25 years, though, bow visors have given way to clam doors. Instead of one large visor, two halves open horizontally to reveal the loading ramp and deck. These are believed to be safer than bow visor doors, as in a bow visor door, the forces acting on the door from the impact of the waves are absorbed by the hinges and locks, which may fail. With clam doors, the forces of the waves are absorbed by the surrounding bow superstructure. Furthermore, on seagoing vessels there should be inner bow ... [...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] |
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, 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 from 2:1 (dinghies to trailerable sailboats around ) to 5:1 (racing sailboats over ). Large ships have widely varying beam ratios, some as large as 20:1. Rowing shells designed for flatwater racing may have length to beam ratios as high as 30:1, while a cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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