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YALTAM
Yaltam () is the Israeli Navy Underwater Missions Unit ( ''Yechida le'Mishimot Tat-Mayimiyot''), specializing in diver operations. The unit was initially established as Unit 707 in 1963 but in its present form it was established in 1981. It is headquartered at the Haifa naval base Bases In 1965, the area that was formerly used by Shayetet 15#Torpedo Fleet, Torpedo Squadron in Haifa naval base was transferred to Unit 707. The unit's headquarters, the workshop, the dining hall and the living quarters were all situated there. Since the culvert there was suitable only for Shayetet 11 vessels, the unit's men themselves built a pier to launch their vessels. Two technicians who were also the vessel operators were given a designated area for maintenance, the commander of the unit appointed Major George Golani as chief of maintenance. During the War of Attrition the unit's numbers grew and its squads were permanently deployed in other locations. The diver squad of the Eilat Naval Ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shayetet 13
Shayetet 13 () is a naval commando unit of the Israeli Navy and one of the primary sayeret, reconnaissance units of the Israel Defense Forces. Shayetet 13 specializes in sea-to-land incursions, counter-terrorism, sabotage, maritime intelligence (military), intelligence gathering, maritime hostage rescue, and boarding. The unit is trained for sea, air and land actions. The unit has taken part in almost all of Israel's major wars, as well as other actions. The unit is one of the most secretive in the Israeli military. The details of many missions and identities of active operatives are kept highly classified information, classified. The unit is respected as among the best of the world's special forces, and is compared to the United States Navy SEALs, US Navy SEALs and Britain's Special Boat Service. Unlike many other Israeli Special Forces Units which take men only for their 36-month Conscription in Israel, mandatory service, volunteers for Shayetet 13 must agree to serve at least ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haifa Naval Base
The Haifa naval base is a base of Israeli Navy, located in Haifa, Israel, and constitutes the main naval base of the Israel Defense Forces. The base is the hub of Israel's naval force. The naval base has submarines, missile boats and other vessels. On 7 February 2021, Brigadier General Tal Politis was appointed to serve as commander of the Haifa naval base, replacing Brigadier General Guy Goldfarb. Organisation In this base reside the 7th fleet ( the submarine fleet ), the 3rd fleet ( the missile ship fleet ); Squadron 914 (one of the BTS squadrons ), the unit for underwater missions (ILTAM), the Institute of Naval Medicine and the fin unit . The main role of the base is to secure the shipping lanes of the State of Israel, to maintain and improve the operational capacity of the corps and to carry out routine security tasks . The base commander who is the commander of the northern arena in the navy is an officer with the rank of brigadier general and is also referred to as "Command ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinai Peninsula
The Sinai Peninsula, or simply Sinai ( ; ; ; ), is a peninsula in Egypt, and the only part of the country located in Asia. It is between the Mediterranean Sea to the north and the Red Sea to the south, and is a land bridge between Asia and Africa. Sinai has a land area of about (6 percent of Egypt's total area) and a population of approximately 600,000 people. Administratively, the vast majority of the area of the Sinai Peninsula is divided into two Governorates of Egypt, governorates: the South Sinai Governorate and the North Sinai Governorate. Three other governorates span the Suez Canal, crossing into African Egypt: Suez Governorate on the southern end of the Suez Canal, Ismailia Governorate in the center, and Port Said Governorate in the north. In the classical era, the region was known as Arabia Petraea. The peninsula acquired the name ''Sinai'' in modern times due to the assumption that a mountain near Saint Catherine's Monastery is the Biblical Mount Sinai. Mount Sinai i ... [...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 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) to e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Underwater Vehicle
Unmanned underwater vehicles (UUV), also known as underwater drones, are submersible vehicles that can operate underwater without a human occupant. These vehicles may be divided into two categories: remotely operated underwater vehicles (ROUVs) and autonomous underwater vehicles (AUVs). ROUVs are remotely controlled by a human operator. AUVs are automated and operate independently of direct human input. Classifications Remotely operated underwater vehicle Remotely operated underwater vehicle, Remotely Operated Underwater Vehicles (ROUVs) is a subclass of UUVs with the primary purpose of replacing humans for underwater tasks due to the difficult underwater conditions. ROUVs are designed to perform educational or industrial missions. They are manually controlled by an operator to perform tasks that include surveillance and patrolling. The structure of ROUVs disqualify it from being able to operate autonomously. In addition to a camera, actuators, and sensors, ROUVs often incl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrox
Nitrox refers to any gas mixture composed (excepting trace gases) of nitrogen and oxygen. It is usually used for mixtures that contain less than 78% nitrogen by volume. In the usual application, underwater diving, nitrox is normally distinguished from air and handled differently. The most common use of nitrox mixtures containing oxygen in higher proportions than atmospheric air is in scuba diving, where the reduced partial pressure of nitrogen is advantageous in reducing nitrogen uptake in the body's tissues, thereby extending the practicable underwater dive time by reducing the decompression requirement, or reducing the risk of decompression sickness (also known as ''the bends''). The two most common recreational diving nitrox mixes are 32% and 36% oxygen, which have maximum operating depths of about 110 feet (34 meters) and 95 feet (29 meters) respectively. Nitrox is used to a lesser extent in surface-supplied diving, as these advantages are reduced by the more complex logi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface-supplied Diving
Surface-supplied diving is a mode of underwater diving using equipment supplied with breathing gas through a diver's umbilical from the surface, either from the shore or from a diving support vessel, sometimes indirectly via a diving bell. This is different from scuba diving, where the diver's breathing equipment is completely self-contained and there is no essential link to the surface. The primary advantages of conventional surface supplied diving are lower risk of drowning and considerably larger breathing gas supply than scuba, allowing longer working periods and safer decompression. Disadvantages are the absolute limitation on diver mobility imposed by the length of the umbilical, encumbrance by the umbilical, and high logistical and equipment costs compared with scuba. The disadvantages restrict use of this mode of diving to applications where the diver operates within a small area, which is common in commercial diving work. The copper helmeted free-flow standard di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
×ש
Aish, formerly known as Aish HaTorah (Hebrew: ×ש התורה, lit. "Fire of the Torah"), is a Jewish educational organization. The focus of Aish is the spread of traditional Jewish religious teachings and culture to Jews around the globe, utilizing a significant online presence made up of its website, Aish.com, and various social media channels. In addition to the educational organization, the organization's main campus in Jerusalem also includes a yeshiva and a women's seminary, as well as several other in-person programs. History Aish, founded in Jerusalem in 1974 by Rabbi Noah Weinberg after leaving the Ohr Somayach yeshiva, which he had co-founded, aimed to educate young Jewish students, particularly travellers and volunteers, in the history and traditions of Orthodox Judaism. It later expanded worldwide and established 30 branches; each is currently run as its own entity. Aish continues to promote an extensive array of relevant in-person courses and online educational ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bethlehem
Bethlehem is a city in the West Bank, Palestine, located about south of Jerusalem, and the capital of the Bethlehem Governorate. It had a population of people, as of . The city's economy is strongly linked to Tourism in the State of Palestine, tourism, especially during the Christmas period, when Christians embark on a pilgrimage to the Church of the Nativity, which is revered as the location of the birth of Jesus. A possible first mention of Bethlehem is in the Amarna letters, Amarna correspondence of ancient Egypt, dated to 1350–1330 BCE, although that reading is uncertain. In the Hebrew Bible, the period of the Israelites is described; it identifies Bethlehem as the birthplace of David. In the New Testament, the city is identified as the birthplace of Jesus, Jesus of Nazareth. Under the Roman Empire, the city of Bethlehem was destroyed by Hadrian, but later rebuilt by Constantine the Great, who commissioned the Church of the Nativity in 327 CE. In 529, the Church of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Israel Defense Forces
The Israel Defense Forces (IDF; , ), alternatively referred to by the Hebrew-language acronym (), is the national military of the State of Israel. It consists of three service branches: the Israeli Ground Forces, the Israeli Air Force, and the Israeli Navy. It is the sole military wing of the Israeli security forces, Israeli security apparatus. The IDF is headed by the Chief of the General Staff (Israel), chief of the general staff, who is subordinate to the Ministry of Defense (Israel), defense minister. On the orders of first prime minister David Ben-Gurion, the IDF was formed on 26 May 1948 and began to operate as a Conscription in Israel, conscript military, drawing its initial recruits from the already-existing paramilitaries of the Yishuv—namely Haganah, the Irgun, and Lehi (militant group), Lehi. It was formed shortly after the Israeli Declaration of Independence and has participated in List of wars involving Israel, every armed conflict involving Israel. In the wak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
