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Watch System
Watchkeeping or watchstanding is the assignment of sailors to specific roles on a ship to operate it continuously. These assignments, also known at sea as ''watches'', are constantly active as they are considered essential to the safe operation of the vessel and also allow the ship to respond to emergencies and other situations quickly. These watches are divided into work periods to ensure that the roles are always occupied at all times, while those members of the crew who are assigned to work during a watch are known as ''watchkeepers''. On a typical seafaring vessel, be it naval or merchant, personnel "keep a watch" in various locations and duties across the ship, such as the bridge and engine room. Typical bridge watchkeepers include a lookout and a deck officer who is responsible for the safe navigation of the ship; whereas in the engine room, an engine officer ensures that running machinery continues to operate within tolerances. Types of watches A wide variety of types of w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Sailor Stands Watch Aboard USS George H
A, or a, is the first letter and the first vowel of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''a'' (pronounced ), plural ''aes''. It is similar in shape to the Ancient Greek letter alpha, from which it derives. The uppercase version consists of the two slanting sides of a triangle, crossed in the middle by a horizontal bar. The lowercase version can be written in two forms: the double-storey a and single-storey ɑ. The latter is commonly used in handwriting and fonts based on it, especially fonts intended to be read by children, and is also found in italic type. In English grammar, " a", and its variant " an", are indefinite articles. History The earliest certain ancestor of "A" is aleph (also written 'aleph), the first letter of the Phoenician alphabet, which consisted entirely of consonants (for that reason, it is also called an abjad to distinguish it fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damage Control
In navies and the maritime industry, damage control is the emergency control of situations that may cause the sinking of a watercraft. Examples are: * rupture of a pipe or hull especially below the waterline and * damage from grounding (running aground) or hard berthing against a wharf. * temporary fixing of bomb or explosive damage. Measures used Simple measures may stop flooding, such as: * locking off the damaged area from other ship's compartments; * blocking the damaged area by wedging a box around a tear in the ship's hull, * putting a band of thin sheet steel around a tear in a pipe, bound on by clamps. More complicated measures may be needed if a repair must take the pressure of the ship moving through the water. For example: * Thermal lance cutting around the rupture. * Oxyacetylene welding or electric arc welding of plates over the rupture. * Quick-drying cement is applied underwater over the rupture. Damage control training is undertaken by most seafarers, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foremast
The mast of a Sailing ship, sailing vessel is a tall spar (sailing), spar, or arrangement of spars, erected more or less vertically on the centre-line of a ship or boat. Its purposes include carrying sails, spars, and derricks, and giving necessary height to a navigation light, Look-out, look-out position, Naval flag signalling, signal Yard (sailing), yard, Fire-control system#Naval fire control, control position, Antenna (radio), radio aerial or signal lamp. Large ships have several masts, with the size and configuration depending on the style of ship. Nearly all sailing masts are guyed mast, guyed. Until the mid-19th century, all vessels' masts were made of wood formed from a single or several pieces of timber which typically consisted of the trunk of a conifer tree. From the 16th century, vessels were often built of a size requiring masts taller and thicker than could be made from single tree trunks. On these larger vessels, to achieve the required height, the masts were built ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port (nautical)
Port and starboard are nautical terms for watercraft and aircraft, referring respectively to the left and right sides of the vessel, when aboard and facing the bow (front). Vessels with bilateral symmetry have left and right halves which are mirror images of each other. One asymmetric feature is where access to a boat, ship, or aircraft is at the side, it is usually only on the port side (hence the name). Side Port and starboard unambiguously refer to the left and right side of the vessel, not the observer. That is, the port side of the vessel always refers to the same portion of the vessel's structure, and does not depend on which way the observer is facing. The port side is the side of the vessel which is to the left of an observer aboard the vessel and , that is, facing forward towards the direction the vehicle is heading when underway, and starboard side is to the right of such an observer. This convention allows orders and information to be given unambiguously, without ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Starboard
Port and starboard are nautical terms for watercraft and aircraft, referring respectively to the left and right sides of the vessel, when aboard and facing the bow (front). Vessels with bilateral symmetry have left and right halves which are mirror images of each other. One asymmetric feature is where access to a boat, ship, or aircraft is at the side, it is usually only on the port side (hence the name). Side Port and starboard unambiguously refer to the left and right side of the vessel, not the observer. That is, the port side of the vessel always refers to the same portion of the vessel's structure, and does not depend on which way the observer is facing. The port side is the side of the vessel which is to the left of an observer aboard the vessel and , that is, facing forward towards the direction the vehicle is heading when underway, and starboard side is to the right of such an observer. This convention allows orders and information to be given unambiguously, witho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commonwealth Of Nations
The Commonwealth of Nations, simply referred to as the Commonwealth, is a political association of 56 member states, the vast majority of which are former territories of the British Empire. The chief institutions of the organisation are the Commonwealth Secretariat, which focuses on intergovernmental aspects, and the Commonwealth Foundation, which focuses on non-governmental relations amongst member states. Numerous organisations are associated with and operate within the Commonwealth. The Commonwealth dates back to the first half of the 20th century with the decolonisation of the British Empire through increased self-governance of its territories. It was originally created as the British Commonwealth of Nations through the Balfour Declaration at the 1926 Imperial Conference, and formalised by the United Kingdom through the Statute of Westminster in 1931. The current Commonwealth of Nations was formally constituted by the London Declaration in 1949, which modernised the comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Navy
The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against France. The modern Royal Navy traces its origins to the early 16th century; the oldest of the UK's armed services, it is consequently known as the Senior Service. From the middle decades of the 17th century, and through the 18th century, the Royal Navy vied with the Dutch Navy and later with the French Navy for maritime supremacy. From the mid 18th century, it was the world's most powerful navy until the Second World War. The Royal Navy played a key part in establishing and defending the British Empire, and four Imperial fortress colonies and a string of imperial bases and coaling stations secured the Royal Navy's ability to assert naval superiority globally. Owing to this historical prominence, it is common, even among non-Britons, to ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dog Watch
A dog watch is a work shift, also known as a "watch", in a maritime watch system that is half the length of a standard watch period. This is typically formed by splitting a single four-hour watch period between 16:00 and 20:00 (4 pm and 8 pm) to form two two-hour dog watches, with the "first" dog watch from 16:00 to 18:00 (4 pm to 6 pm) and the "second" or "last" dog watch from 18:00 to 20:00 (6 pm to 8 pm). Need for a dog watch at sea This watch exists because, in order for the crew to rotate through all the watches, it is necessary to have an odd number of watches in a ship's day. Splitting one of the watches in half allows the sailors to stand different watches instead of one team being forced to stand the mid-watch every night. The choice of time also allows both watches, if there are only two, to eat an evening meal at about the traditional time. Etymology The ''Oxford English Dictionary'' states that the word 'dogwatch' is a direct translation from either German or Dutch o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cargo Watch
Cargo consists of bulk goods conveyed by water, air, or land. In economics, freight is cargo that is transported at a freight rate for commercial gain. ''Cargo'' was originally a shipload but now covers all types of freight, including transport by rail, van, truck, or intermodal container. The term cargo is also used in case of goods in the cold-chain, because the perishable inventory is always in transit towards a final end-use, even when it is held in cold storage or other similar climate-controlled facility. The term freight is commonly used to describe the movements of flows of goods being transported by any mode of transportation. Multi-modal container units, designed as reusable carriers to facilitate unit load handling of the goods contained, are also referred to as cargo, especially by shipping lines and logistics operators. Similarly, aircraft ULD boxes are also documented as cargo, with an associated packing list of the items contained within. When empty contain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Command Duty Officer
A command duty officer (CDO) or officer of the day (OOD) is a watchkeeping officer on a naval ship who is delegated authority from a commanding officer of the ship and holds command and control of the ship during that watch. A CDO represents the commanding officer and executive officer in their absence, and supervises other junior watchkeeping officers such as the officer of the deck. Command duty officers are typically assigned for ships in port or land naval installations. While many watchkeepers stand watch for a few hours continuously at a time, CDOs may be on duty for longer periods, such as a day or a week. Whilst the CDO may be outranked by more senior officers on board, the CDO is only subordinate to the commanding officer and executive officer whilst carrying out their duties. In the Royal Navy, and other navies based upon this structure, the position is known as an ''officer of the day'', and other duties may include ceremonial duties (such as carrying out Colours or Suns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combat Information Center
A combat information center (CIC) or action information centre (AIC) is a room in a warship or AWACS aircraft that functions as a tactical center and provides processed information for command and control of the near battlespace or area of operations. Within other military commands, rooms serving similar functions are known as command centers. Regardless of the vessel or command locus, each CIC organizes and processes information into a form more convenient and usable by the commander in authority. Each CIC funnels communications and data received over multiple channels, which is then organized, evaluated, weighted and arranged to provide ordered timely information flow to the battle command staff under the control of the CIC officer and his deputies. Overview CICs are widely depicted in film and television treatments, frequently with large maps, numerous computer consoles and radar and sonar repeater displays or consoles, as well as the almost ubiquitous grease-pencil annota ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tactical Action Officer
Tactic(s) or Tactical may refer to: * Tactic (method), a conceptual action implemented as one or more specific tasks ** Military tactics, the disposition and maneuver of units on a particular sea or battlefield ** Chess tactics ** Political tactics * TACTIC (military program), a U.S. military research program conducted by DARPA Computer science * TACTIC (web framework), a smart process application by Southpaw Technology Geography * Tactic, Guatemala, a municipality in the Alta Verapaz department Entertainment * Tactics, a dart game similar to cricket * "Tactics", a 1995 song by The Yellow Monkey * ''Tactics'' (album), a 1996 album by John Abercrombie * Tactics (band), an Australian band * ''Tactics'' (game), generally credited as the first board wargame * ''Tactics'' (manga), a Japanese manga series * ''Tactic'' (video game), a puzzle video game * Tactics (video games studio) is a Japanese software publishing company specializing in the publishing and distribution of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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