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Ghadir (submarine)
''Ghadir'' ( fa, غدیر, ; named after the Ghadir Khumm) is a class of midget submarines built by Iran specifically for cruising within the shallow waters of the Persian Gulf. The Islamic Republic of Iran Navy is the sole operator of this class, whose all submarines serve in the Southern Fleet. No submarine of this class is active at the Northern Fleet, i.e. the Caspian Sea. History Iran had shown interest in midget submarines in the 1980s. According to the ''Conway's All The World's Fighting Ships'', Iran assembled a midget in Bandar Abbas that was completed in 1987 in an unsuccessful attempt. Iran reportedly purchased a second midget of another design from North Korea, delivered in 1988. It is alleged that by 1993, nine midget submarines –able to displace 76 tons surfaced and 90 tons submerged, with a top speed between and – were imported from North Korea. Existence of ''Ghadir'' class was first known in February 2004. An unclassified 2017 report by the U.S. Office o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Industries Organization
Marine Industries Organization (MIO, fa, سازمان صنایع دریایی), formerly known as Marine Industries Group (MIG), is a defense industry complex subordinate to the Iranian defence ministry. It is the major producer of equipment for both naval forces of Iran, the Islamic Republic of Iran Navy and the Navy of the Islamic Revolutionary Guard Corps. Subordinates Subordinates of the MIO are: Products Subsidiaries of the MIO manufacture a wide range of maritime equipment, including submarines, high-speed boats, as well as principal surface combatants. Some of the products made by the MIO are: * MIG-G-0800 * MIG-G-0900 * MIG-G-1900 * MIG-S-1800, built at Shahid Joolaee Industries * MIG-S-2600, built at Shahid Joolaee Industries * MIG-S-3700, built at Shahid Darvishi Industries * MIG-S-4700, built at Shahid Darvishi Industries * MIG-S-5000 * RIBs, built at Shahid Joolaee Industries * , built at Shahid Darvishi Industries * , built at Shahid Tamjidi Industries * , bui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ali Khamenei
Sayyid Ali Hosseini Khamenei ( fa, سید علی حسینی خامنهای, ; born 19 April 1939) is a Twelver Shia ''marja''' and the second and current Supreme Leader of Iran, in office since 1989. He was previously the third president of Iran from 1981 to 1989. Khamenei is the longest serving head of state in the Middle East, as well as the second-longest serving Iranian leader of the last century, after Shah Mohammad Reza Pahlavi. According to his official website, Khamenei was arrested six times before being sent into exile for three years during Mohammad Reza Pahlavi's reign. After the Iranian revolution overthrowing the shah, he was the target of an attempted assassination in June 1981 that paralysed his right arm. Khamenei was one of Iran's leaders during the Iran–Iraq War in the 1980s, and developed close ties with the now powerful Revolutionary Guards which he controls, and whose commanders are elected and dismissed by him. The Revolutionary Guards have been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoot (torpedo)
The Hoot ( fa, حوت; ''Whale'') is an Iranian supercavitation torpedo claimed to travel at approximately , several times faster than a conventional torpedo. It was claimed to have been successfully test-fired from a surface ship against a dummy submarine during the Iranian military exercise "Great Prophet" () on 2 April 2006 and 3 April 2006. Iran test-fired the torpedo within its territorial waters in the Strait of Hormuz in May 2017. The official Iranian news agency IRNA claims the torpedo was produced and developed by the Islamic Revolutionary Guard Corps (). Most military and industry analysts have concluded that the Hoot is reverse engineered from the Russian VA-111 Shkval supercavitation torpedo which travels at the same speed. See also * List of supercavitating torpedoes A supercavitating torpedo is a torpedo using the effect of supercavitation to create a bubble around the torpedo to move at high velocity under water. The following is a list of supercavitating torpedoes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valfajr (torpedo)
Valfajr is a modern homing torpedo system designed, developed, and tested by Iran's Ministry of Defence. History In 2011, it was presented by the Iranian Ministry of Defence. Brigadier General Hossein Dehghan (Iran's defence minister) and Flotilla Admiral Habibollah Sayyari (the Commander of the Iranian regular Navy) opened the production line on 13 October 2015. In the opening ceremony, Dehghan stated that "the torpedo is capable of destroying various marine targets, including large vessels, in a few seconds." In October 2015, Iran started mass-production of the Valfajr and has claimed that the weapon has now been upgraded with an anti-jamming system. Capacity The torpedo carries an explosive warhead weighing between 220 and 300 kilograms capable of crippling naval targets in different weather and depth conditions. See also * List of military equipment manufactured in Iran * Iranian underground missile bases * Emad (missile) * Ghamar (3D radar) * Fateh-313 Fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iranian SLCM
Iranian may refer to: * Iran, a sovereign state * Iranian peoples, the speakers of the Iranian languages. The term Iranic peoples is also used for this term to distinguish the pan ethnic term from Iranian, used for the people of Iran * Iranian languages, a branch of the Indo-Iranian languages * Iranian diaspora, Iranian people living outside Iran * Iranian architecture, architecture of Iran and parts of the rest of West Asia * Iranian foods, list of Iranian foods and dishes * Iranian.com, also known as ''The Iranian'' and ''The Iranian Times'' See also * Persian (other) * Iranians (other) * Languages of Iran * Ethnicities in Iran * Demographics of Iran * Indo-Iranian languages * Irani (other) * List of Iranians This is an alphabetic list of notable people from Iran or its historical predecessors. In the news * Ali Khamenei, supreme leader of Iran * Ebrahim Raisi, president of Iran, former Chief Justice of Iran. * Hassan Rouhani, former president of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonar
Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigation, navigate, measure distances (ranging), communicate with or detect objects on or under the surface of the water, such as other vessels. "Sonar" can refer to one of two types of technology: ''passive'' sonar means listening for the sound made by vessels; ''active'' sonar means emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. Acoustic location in air was used before the introduction of radar. Sonar may also be used for robot navigation, and SODAR (an upward-looking in-air sonar) is used for atmospheric investigations. The term ''sonar'' is also used for the equipment used to generate and receive the sound. The acoustic frequencies used in sonar systems vary from very low (infrasonic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo Tube
A torpedo tube is a cylindrical device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed aboard surface vessels. Deck-mounted torpedo launchers are usually designed for a specific type of torpedo, while submarine torpedo tubes are general-purpose launchers, and are often also capable of deploying naval mine, mines and cruise missiles. Most modern launchers are standardized on a diameter for light torpedoes (deck mounted aboard ship) or a diameter for heavy torpedoes (underwater tubes), although other sizes of torpedo tube have been used: see Torpedo#Classes and diameters, Torpedo classes and diameters. Submarine torpedo tube A submarine torpedo tube is a more complex mechanism than a torpedo tube on a surface ship, because the tube has to accomplish the function of moving the torpedo from the normal atmospheric pressure within t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel–electric Transmission
A diesel–electric transmission, or diesel–electric powertrain is a transmission system for vehicles powered by diesel engines in road, rail, and marine transport. Diesel–electric transmission is based on petrol–electric transmission, a very similar transmission system used for petrol engines. Diesel–electric transmission is used on railways by diesel–electric locomotives and diesel–electric multiple units, as electric motors are able to supply full torque at 0 RPM. Diesel–electric systems are also used in marine transport, including submarines, and on some land vehicles. Description The defining characteristic of diesel–electric transmission is that it avoids the need for a gearbox, by converting the mechanical force of the diesel engine into electrical energy (through a dynamo), and using the electrical energy to drive traction motors, which propel the vehicle mechanically. The traction motors may be powered directly or via rechargeable batteries, makin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propeller
A propeller (colloquially often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air. Propellers are used to pump fluid through a pipe or duct, or to create thrust to propel a boat through water or an aircraft through air. The blades are specially shaped so that their rotational motion through the fluid causes a pressure difference between the two surfaces of the blade by Bernoulli's principle which exerts force on the fluid. Most marine propellers are screw propellers with helical blades rotating on a propeller shaft (ship), propeller shaft with an approximately horizontal axis. History Early developments The principle employed in using a screw propeller is derived from sculling. In sculling, a single blade is moved through an arc, from side to side taking care to keep presenting the ... [...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] |
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] |
Pakistan Navy
ur, ہمارے لیے اللّٰہ کافی ہے اور وہ بہترین کارساز ہے۔ English language, English: Allah is Sufficient for us - and what an excellent (reliable) Trustee (of affairs) is He!(''Quran, Qur'an, Al Imran, 3:173'') , type = Navy , role = , size = 54,100 total active personnel * 35,300 Active duty, active-duty officers and sailors * 5,000 Military reserve force, reserve force * 12,000 Pakistan Marines, Marines * 4,000 Pakistan Maritime Security Agency, Maritime Security Agency * 2,800 :Pakistan Navy civilians, civilian personnel154 ships and 85 aircraft , command_structure = Pakistan Armed Forces , garrison = Naval Headquarters (Pakistan Navy), Naval Headquarters (NHQ), Islamabad, Islamabad Capital Territory, ICT , garrison_label = Garrison , colors = , colors_label = Colours , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
