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Ultra Fast Attack Craft
The Ultra Fast Attack Craft, commonly known as the Colombo class, is a Sri Lankan ultra high-speed class of patrol boats meant for a variety of naval missions from off-shore coastal patrol missions to high-speed, high-maneuver littoral warfare. Built by Colombo Dockyard Limited for the Sri Lanka Navy (SLN), they became the workhorse of the SLN against Sea tiger boats of the LTTE. Subclasses Series I The boats of the Series I are long with a monohull with a vibration-free deck, powered by twin MTU main engines developing each, driving Kamewa water jets. This enables the boat to reach speeds of and have an endurance of . They have a crew of 10. Around 12 were delivered to the Sri Lanka Navy (SLN). Series II Series II the successor to the earlier type. Main upgrades include the increase of accommodation for a crew of 12 and major improvements the superstructure. Like the Series I, around 12 were delivered to the SLN. Series III The Series III is the recent addition to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colombo Dockyard Limited
Colombo Dockyard PLC (CDPLC) is a shipbuilding company in Sri Lanka and is based in Colombo. It has built both military and civilian vessels for both local and overseas clients. History Colombo Dockyard established its operations in 1974 and is one of Sri Lanka's engineering facilities in the business of ship repair, shipbuilding, heavy engineering and offshore engineering. It is situated within the Port of Colombo, thus having the benefits of a deep water harbour. Facilities and operation Colombo Dockyard operates four graving drydocks, the largest one with a capacity of as well as repair berth facilities. It is accredited with the ISO 9001-2015 quality certification by Lloyd's Register Quality Assurance. Colombo Dockyard has operated in joint collaboration with Onomichi Dockyard Japan since 1993- the collaboration's twenty-year anniversary was celebrated on March 26, 2013. In 2020 Colombo Dockyard build Eco bulk carriers for Norwegian Misje Eco Bulk company, Misje subsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MTU Friedrichshafen
MTU Friedrichshafen GmbH is a German manufacturer of commercial internal combustion engines founded by Wilhelm Maybach and his son Karl Maybach in 1909. Wilhelm Maybach was the technical director of Daimler-Motoren-Gesellschaft (DMG), a predecessor company of the German multinational automotive corporation Daimler AG, until he left in 1907. On 23 March 1909, he founded the new company, Luftfahrzeug-Motorenbau GmbH (Aircraft Engine Manufacturing Corp), with his son Karl Maybach as director. A few years later the company was renamed to Maybach-Motorenbau GmbH (Maybach Engine Manufacturing Corp), which originally developed and manufactured diesel and petrol engines for Zeppelins, and then railcars. The Maybach Mb.IVa was used in aircraft and airships of World War I. The company first built an experimental car in 1919, with the first production model introduced two years later at the Berlin Motor Show. Between 1921 and 1940, the company produced various classic opulent vehicles. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar
Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects. Radio waves (pulsed or continuous) from the transmitter reflect off the objects and return to the receiver, giving information about the objects' locations and speeds. Radar was developed secretly for military use by several countries in the period before and during World War II. A key development was the cavity magnetron in the United Kingdom, which allowed the creation of relatively small systems with sub-meter resolution. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heavy Machine Gun
A heavy machine gun (HMG) is significantly larger than light machine gun, light, medium machine gun, medium or general-purpose machine guns. HMGs are typically too heavy to be man-portable (carried by one person) and require weapon mount, mounting onto a weapons platform to be operably stable or tactically mobility (military), mobile, have more formidable firepower, and generally Crew-served weapon, require a team of personnel for operation and maintenance. There are two generally recognized classes of weapons identified as HMGs. The first are weapons from World War I identified as "heavy" due to the weight and cumbersomeness of the weapons themselves, which prevents infantrymen from transporting on foot, such as the M1917 Browning machine gun. The second are large-caliber (12.7×99mm, 12.7×108mm, 14.5×114mm, or larger) machine guns, pioneered by John Browning with the M2 machine gun, designed to provide increased effective range, penetration (weapons), penetration and stopping ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Purpose Machine Gun
A general-purpose machine gun (GPMG) is an air-cooled, usually belt-fed machine gun that can be adapted flexibly to various tactical roles for light and medium machine guns. A GPMG typically features a quick-change barrel design calibered for various fully powered cartridges such as the 7.62×51mm NATO, 7.62×54mmR, 7.5×54mm French, 7.5×55mm Swiss and 7.92×57mm Mauser, and be configured for mounting to different stabilizing platforms from bipods and tripods to vehicles, aircraft, boats and fortifications, usually as an infantry support weapon or squad automatic weapon. History The general-purpose machine gun (GPMG) originated with the MG 34, designed in 1934 by Heinrich Vollmer of Mauser on the commission of Nazi Germany to circumvent the restrictions on machine guns imposed by the Treaty of Versailles. It was introduced into the Wehrmacht as an entirely new concept in automatic firepower, dubbed the ''Einheitsmaschinengewehr'', meaning "universal machine gun" in Germ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Grenade Launcher
An automatic grenade launcher (AGL) or grenade machine gun is a grenade launcher that is capable of fully automatic fire, and is typically loaded with either an ammunition belt or magazine. These weapons are often mounted on vehicles or helicopters, as when these weapons are moved by infantry the weapon, its tripod, and ammunition, are a heavy load, requiring a small team. Other types of grenade launchers are typically much lighter and can easily be carried by just a single soldier. The Mark 19 Automatic Grenade Launcher, first fielded by the United States in 1966, and still widely used today, weighs 62.5 kg (137.58 lb) when attached to its tripod, and loaded with a box of ammunition. For comparison, the single-shot M79 grenade launcher weighs 2.93 kg (6.45 lb). Regardless of their weight, AGLs are still highly effective, and the Mark 19 is capable of indirect fire up to 2,200 metres, a role traditionally reserved for mortars. Even though the round carries less explosive than a 6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maldivian Coast Guard
The Maldivian Coast Guard is the naval or maritime arm of the Maldives National Defence Force (MNDF). Because the Maldives does not have a navy, the MNDF Coast Guard functions as the armed maritime force of the nation with a charter to contribute to national defence and by and large to respond to issues related to the maritime security of the nation. Therefore, the Coast Guard is documented as the custodian of the Maldives Maritime Domain. Maritime security is a constituent ingredient of the national security in a maritime nation such as the Maldives and its significance is best understood when one perceives the island or the archipelagic nature of the country. After the new government took power in 2008, the Coast Guard has been the highest priority of the defense sector in Maldives. Four Coast Guard squadrons are deployed in the southern, central, and northern regions of Maldives, and a Strategic Reserve has been established at the capital, Male'. Missions * Defending the n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Special Operations Forces
Special forces and special operations forces (SOF) are military units trained to conduct special operations. NATO has defined special operations as "military activities conducted by specially designated, organized, selected, trained and equipped forces using unconventional techniques and modes of employment". Special forces emerged in the early 20th century, with a significant growth in the field during the Second World War, when "every major army involved in the fighting" created formations devoted to special operations behind enemy lines. Depending on the country, special forces may perform functions including Airborne forces, airborne operations, counter-insurgency, counter-terrorism, foreign internal defense, Covert operations, covert ops, Direct action (military), direct action, Hostage crises, hostage rescue, high-value targets/Manhunt (military), manhunt, intelligence, surveillance, target acquisition, and reconnaissance, intelligence operations, Mobility (military), mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draft (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] |
Super Dvora Mk III
The Super Dvora Mark III-class patrol boat is the latest generation of the Dvora family of fast patrol boats or fast attack craft (FPB/FAC). Manufactured by IAI Ramta in 2004 these vessels are capable of travelling up to in littoral waters thanks to its state of the art thrust vectoring control Articulated Surface Drives (ASD) while holding various armaments, from automatic grenade launchers, AGM-114 Hellfire missiles, SPIKE NLOS missiles, and 30 mm cannons in its armory. Design and construction Performance The Super Dvora Mk III craft features interception of sea target at high-speeds approaching 50 knots; long-range missions thanks to its sea replenishment ability ahead of a typical four-day endurance; high maneuverability in both open ocean and littoral environment; steady sea keeping in a range of sea states and very callous weather; and the ability to incorporate advanced, stabilized, accurate marine arsenal and sensors. Taken as a whole, vessel displacement varies ... [...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] |
Shaldag-class Patrol Boat
The Shaldag-class patrol boat ( he, שלדג, ''Kingfisher'') is a small but fast class of patrol boats developed for the Israeli Navy and launched in 1989, it has since seen service with several other navies. Designed for security tasks where high intercept speeds are required, such as interdiction of terrorism and illegal smuggling. Its salient features high speed in rough seas, with good seakeeping and outstanding maneuverability, exceptionally low slamming in all sea states, dry decks at all speeds and very spacious and accessible internal arrangement. History The Shaldag class was conceptualized by Israel Shipyards in response to request from the Israeli Navy for a fast patrol boat to protect Israeli waters from terrorist threats. Design and construction The hull, deck and deckhouse are of welded marine aluminium alloy, with transverse frames and longitudinals. Integral double bottom tanks contain fuel with an additional gravity fuel tank at the center. The hull is divide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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