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Diver Down Flag
A diver down flag, or scuba flag, is a flag used on the water to indicate that there is a diver below. Two styles of flag are in use. Internationally, the code flag alfa/alpha, which is white and blue, is used to signal that the vessel has a diver down and other vessels should keep well clear at slow speed. In North America it is conventionally red with a white stripe from the upper left corner to the lower right corner. Purpose The purpose of the flags is to notify to any other boats to steer clear for the safety of the diver and to avert the possibility of a collision with the dive boat which may be unable to maneuver out of the way. Signal flag Alpha As a code signal the International maritime signal flag Alpha (or "Alfa", signifying the letter "A") has the meaning of "I have a diver down; keep well clear at slow speed", used to indicate the presence of a diver in the water and is used in all countries other than the United States, Canada, sometimes Italy, and countries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Maritime Signal Flags
International maritime signal flags are various flags used to communicate with ships. The principal system of flags and associated codes is the International Code of Signals. Various navies have flag systems with additional flags and codes, and other flags are used in special uses, or have historical significance. Usage There are various methods by which the flags can be used as signals: * A series of flags can spell out a message, each flag representing a letter. * Individual flags have specific and standard meanings;AB Nordbok. "The Lore of Ships", page 138. New York: Crescent Books, 1975. for example, diving support vessels raise the "A" flag indicating their inability to move from their current location because they have a diver underwater and to warn other vessels to keep clear to avoid endangering the diver(s) with their propellers. * One or more flags form a code word whose meaning can be looked up in a code book held by both parties. An example is the Popham numeric c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flag
A flag is a piece of fabric (most often rectangular or quadrilateral) with a distinctive design and colours. It is used as a symbol, a signalling device, or for decoration. The term ''flag'' is also used to refer to the graphic design employed, and flags have evolved into a general tool for rudimentary signalling and identification, especially in environments where communication is challenging (such as the maritime environment, where semaphore is used). Many flags fall into groups of similar designs called flag families. The study of flags is known as " vexillology" from the Latin , meaning "flag" or "banner". National flags are patriotic symbols with widely varied interpretations that often include strong military associations because of their original and ongoing use for that purpose. Flags are also used in messaging, advertising, or for decorative purposes. Some military units are called "flags" after their use of flags. A ''flag'' (Arabic: ) is equivalent to a b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scuba Diving
Scuba diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface air supply. The name "scuba", an acronym for " Self-Contained Underwater Breathing Apparatus", was coined by Christian J. Lambertsen in a patent submitted in 1952. Scuba divers carry their own source of breathing gas, usually compressed air, affording them greater independence and movement than surface-supplied divers, and more time underwater than free divers. Although the use of compressed air is common, a gas blend with a higher oxygen content, known as enriched air or nitrox, has become popular due to the reduced nitrogen intake during long and/or repetitive dives. Also, breathing gas diluted with helium may be used to reduce the likelihood and effects of nitrogen narcosis during deeper dives. Open circuit scuba systems discharge the breathing gas into the environment as it is exhaled, and consist of one or more diving cylinders containing br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boat
A boat is a watercraft of a large range of types and sizes, but generally smaller than a ship, which is distinguished by its larger size, shape, cargo or passenger capacity, or its ability to carry boats. Small boats are typically found on inland waterways such as rivers and lakes, or in protected coastal areas. However, some boats, such as the whaleboat, were intended for use in an offshore environment. In modern naval terms, a boat is a vessel small enough to be carried aboard a ship. Boats vary in proportion and construction methods with their intended purpose, available materials, or local traditions. Canoes have been used since prehistoric times and remain in use throughout the world for transportation, fishing, and sport. Fishing boats vary widely in style partly to match local conditions. Pleasure craft used in recreational boating include ski boats, pontoon boats, and sailboats. House boats may be used for vacationing or long-term residence. Lighters are used to con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diver Down Flag Alpha
Diver or divers may refer to: *Diving (sport), the sport of performing acrobatics while jumping or falling into water *Practitioner of underwater diving, including: **scuba diving, **freediving, **surface-supplied diving, ** saturation diving, and ** atmospheric suit diving People * Diver (surname) *Edward Divers (1837–1912), British chemist *"Diver", nickname of Tom Derrick (1914–1945), Australian Second World War recipient of the Victoria Cross Military *V-1 flying bomb, code named "diver" by the British World War II armed forces ** Operation Diver, the British countermeasures against the German V-1 flying bomb campaign *AUM-N-4 Diver, a proposed U.S. Navy torpedo-carrying missile of the late 1940s. *Diver (United States Navy) Arts and entertainment * ''Diver'' (EP), a 2006 EP by A Wilhelm Scream * "Diver" (Nico Touches the Walls song), a 2011 song by Nico Touches the Walls * "Diver" (Kana-Boon song), a 2015 song by Kana-Boon * ''Divers'' (album), a 2015 album by Joanna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Maritime Signal Flag
International maritime signal flags are various flags used to communicate with ships. The principal system of flags and associated codes is the International Code of Signals. Various navies have flag systems with additional flags and codes, and other flags are used in special uses, or have historical significance. Usage There are various methods by which the flags can be used as signals: * A series of flags can spell out a message, each flag representing a letter. * Individual flags have specific and standard meanings;AB Nordbok. "The Lore of Ships", page 138. New York: Crescent Books, 1975. for example, diving support vessels raise the "A" flag indicating their inability to move from their current location because they have a diver underwater and to warn other vessels to keep clear to avoid endangering the diver(s) with their propellers. * One or more flags form a code word whose meaning can be looked up in a code book held by both parties. An example is the Popham numeric cod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caribbean
The Caribbean (, ) ( es, El Caribe; french: la Caraïbe; ht, Karayib; nl, De Caraïben) is a region of the Americas that consists of the Caribbean Sea, its islands (some surrounded by the Caribbean Sea and some bordering both the Caribbean Sea and the North Atlantic Ocean) and the surrounding coasts. The region is southeast of the Gulf of Mexico and the North American mainland, east of Central America, and north of South America. Situated largely on the Caribbean Plate, the region has more than 700 islands, islets, reefs and cays (see the list of Caribbean islands). Island arcs delineate the eastern and northern edges of the Caribbean Sea: The Greater Antilles and the Lucayan Archipelago on the north and the Lesser Antilles and the on the south and east (which includes the Leeward Antilles). They form the West Indies with the nearby Lucayan Archipelago (the Bahamas and Turks and Caicos Islands), which are considered to be part of the Caribbean despite not bordering the Caribbe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Regulations For Preventing Collisions At Sea
The International Regulations for Preventing Collisions at Sea 1972 (COLREGs) are published by the International Maritime Organization (IMO) and set out, among other things, the "rules of the road" or navigation rules to be followed by ships and other vessels at sea to prevent collisions between two or more vessels.''Convention on the International Regulations for Preventing Collisions at Sea, 1972 (COLREGs)'' , from the IMO (The International Maritime Organisation). Retrieved 13 February 2006. COLREGs can also refer to the specific political line that divides inland waterways, which are subject to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diver Down Flag
A diver down flag, or scuba flag, is a flag used on the water to indicate that there is a diver below. Two styles of flag are in use. Internationally, the code flag alfa/alpha, which is white and blue, is used to signal that the vessel has a diver down and other vessels should keep well clear at slow speed. In North America it is conventionally red with a white stripe from the upper left corner to the lower right corner. Purpose The purpose of the flags is to notify to any other boats to steer clear for the safety of the diver and to avert the possibility of a collision with the dive boat which may be unable to maneuver out of the way. Signal flag Alpha As a code signal the International maritime signal flag Alpha (or "Alfa", signifying the letter "A") has the meaning of "I have a diver down; keep well clear at slow speed", used to indicate the presence of a diver in the water and is used in all countries other than the United States, Canada, sometimes Italy, and countries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Divers
Aqua Lung America (formerly U.S. Divers Company) is an American company based in Vista, California which makes scuba equipment. The company is a division of Aqua Lung International, which was, for most of its existence, a division of Air Liquide. Aqua Lung International was sold by Air Liquide to Montagu Private Equity by the end of 2016. After U.S. Divers Company was renamed Aqua Lung America, the name U.S. Divers was retained as a trademark for Aqua Lung's line of snorkelling equipment. History The "Aqua-Lung" regulator was created by Jacques-Yves Cousteau and Émile Gagnan in 1943. In 1946, the company known as La Spirotechnique (now Aqua Lung International) was established by both men together with Jean Delorme, CEO of Air Liquide, as a division of Air Liquide to sell the Aqua-Lung regulators. In the United States, the Aqua-Lung regulator was first sold in the late 1940s by René Sporting Goods, a sporting goods store in Los Angeles, California owned by René Bussoz. He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Marker Buoy
A surface marker buoy, SMB, dive float or simply a blob is a buoy used by scuba divers, at the end of a line from the diver, intended to indicate the diver's position to people at the surface while the diver is underwater. Two kinds are used; one (SMB) is towed for the whole dive, and indicates the position of the dive group throughout the dive, and the other, a delayed surface marker buoy, DSMB or decompression buoy, is deployed towards the end of the dive as a signal to the surface that the divers have started to ascend, and where they are going to surface. Both types can also function as a depth reference for controlling speed of ascent and accurately maintaining depth at decompression stops. Surface marker buoys are also used by freedivers in open water, to indicate the approximate position of the diver when submerged. They may also be used to support a catch bag or fish stringer by underwater hunters and collectors. A DSMB is considered by recreational scuba divers and serv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Van Halen
Van Halen ( ) was an American rock band formed in Pasadena, California, in 1972. Credited with "restoring hard rock to the forefront of the music scene", Van Halen was known for its energetic live shows and for the virtuosity of its lead guitarist, Eddie Van Halen. The band was inducted into the Rock and Roll Hall of Fame in 2007. From 1974 until 1985, Van Halen consisted of Eddie Van Halen; Eddie's brother, drummer Alex Van Halen; vocalist David Lee Roth; and bassist/vocalist Michael Anthony. Upon its release in 1978, the band's self-titled debut album reached No. 19 on the ''Billboard'' pop music charts and would sell over 10 million copies in the U.S. By 1982, the band released four more albums ('' Van Halen II'', ''Women and Children First'', '' Fair Warning'', and ''Diver Down''), all of which have since been certified multi-platinum. By the early 1980s, Van Halen was one of the most successful rock acts of the day. The album ''1984'' was a commercial success with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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