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Ultra Fast Attack Craft
The Ultra Fast Attack Craft, commonly known as the UFAC or 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. They are based on the Shaldag boats made by Israel. 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. History On December 27, 2007, one UFAC Series II was destroyed and another damaged during an encounter between Sri Lankan Navy and Sea Tiger patrol boats between Delft Island and Mannar. On March 22, 2008, a UFAC was taken out via Sea Tiger suicide attack at the waters off Nayaru and the Kokilai lagoon south of Mulaithivu District. 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 reac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colombo Dockyard Limited
Colombo Dockyard PLC (CDPLC) is a ship building company in Sri Lanka and it 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, ship building, heavy engineering and offshore engineering. It is situated within the Port of Colombo, thus having the benefits of a deep water harbor. As of April 2025, Mazagon Dock Shipbuilders Limited (MDL) is negotiating to acquire a majority stake of Colombo Dockyard PLC (CDPLC). MDL will reportedly purchase 51% stakes from Japan's Onomichi Dockyard Co. Ltd. after the continuous losses from CDPLC. A Memorandum of Understanding (MoU) is expected by the end of the month. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MTU Friedrichshafen
MTU Friedrichshafen GmbH, trading as MTU Solutions (stylised as mtu Solutions) 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, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar
Radar is a system that uses radio waves to determine the distance ('' ranging''), direction ( azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, map weather formations, and terrain. The term ''RADAR'' was coined in 1940 by the United States Navy as an acronym for "radio detection and ranging". The term ''radar'' has since entered English and other languages as an anacronym, a common noun, losing all capitalization. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwave 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heavy Machine Gun
A heavy machine gun (HMG) is significantly larger than light, medium or general-purpose machine guns. HMGs are typically too heavy to be man-portable (carried by one person) and require mounting onto a weapons platform to be operably stable or tactically mobile, have more formidable firepower, and generally require a team of personnel for operation and maintenance. There are two classes of weapons generally defined as HMGs: * The historical definition refers to machine guns, typically chambered in standard full-power cartridges, that are identified as being "heavy" due to their weight and cumbersomeness, which prevents infantrymen from transporting them on foot. Examples include the Maxim machine gun and M1917 Browning machine gun. * The modern definition refers to "heavy caliber" machine guns, pioneered by the German Empire's MG 18 TuF which was a Maxim derivative chambered in 13.2×92mmSR fielded near the end of World War I. They are designed to provide increased effec ... [...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 ... [...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 Belt (firearm), ammunition belt or Magazine (firearm), 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 Mortar (weapon), mortars. Eve ... [...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 na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Special Operations Forces
Special forces or 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 World War II, 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), mobility o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draft (hull)
The draft or draught of a ship is a determined depth of the vessel below the waterline, measured vertically to its hull's lowest—its propellers, or keel, or other reference point. Draft varies according to the loaded condition of the ship. A deeper draft means the ship will have greater vertical depth below the waterline. Draft is used in under keel clearance calculations, where the draft is calculated with the available depth of water (from Electronic navigational charts) to ensure the ship can navigate safely, without grounding. Navigators can determine their draught by calculation or by visual observation (of the ship's painted load lines). Related terminology A ship's draft/draught is the "depth of the vessel below the waterline measured vertically to the lowest part of the hull, propellers, or other reference point". That is, the draft or draught is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if de ... [...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 the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compression (physics), compression; thus, the diesel engine is called a 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). Introduction Diesel engines work by compressing only air, or air combined with 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 air temperature inside the Cylinder (engine), cylinder so that atomised diesel fuel injected into the combustion chamber ignites. The torque a dies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shaldag-class Patrol Boat
The Shaldag-class patrol boat (, ''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. It is designed for security tasks where high intercept speeds are required, such as interdiction of terrorism and illegal smuggling. Its salient features are high speed in rough seas, with good seakeeping and outstanding manoeuvrability, 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 divided ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
