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Miss Katie (2022 Ship)
''Miss Katie'' is a hopper dredge owned by EJE Dredging Service, LLC. Her primary mission is to maintain the channels through Oregon Inlet and nearby Hatteras Inlet in the Outer Banks of North Carolina. Keeping these navigable waterways open is important to local fishing, recreational boating, and other maritime interests. Construction and characteristics Silt from several large rivers and the movement of beach sand along the Outer Banks has historically threatened navigable channels through the barrier islands. This has negatively impacted the local fishing industry and other maritime businesses. In addition, shoaling at the mouths of the inlets, or "bars", has been a factor in the loss of ships and lives. In 1950, Congress authorized the U.S. Army Corps of Engineers to maintain a dredged channel deep through Oregon Inlet. High winds, strong tides, and major storms have largely thwarted this effort. Despite spending well over $100 million on dredging, the majority of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Official Number
Official numbers are ship identifier numbers assigned to merchant ships by their flag state, country of registration. Each country developed its own official numbering system, some on a national and some on a port-by-port basis, and the formats have sometimes changed over time. As an internationally recognized ship identifier, national official numbers have largely been superseded by the IMO number, though flag states still use national systems, which also cover those vessels not subject to the IMO regulations. British official number Beginning in 1855, with the implementation of the Merchant Shipping Act 1854, all British seagoing vessels were assigned an official number to give each ship a unique identity, even after being renamed or changing the port of registry. U.S. official number After the passage of legislation in the United States Congress in 1866, all American ships were required to carve the official number on the main beam; the system was controlled by the Bureau of Sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Burr
Richard Mauze Burr (born November 30, 1955) is an American businessman and politician who served as a United States senator from North Carolina from 2005 to 2023. A member of the Republican Party, Burr was previously a member of the United States House of Representatives. Born in Charlottesville, Virginia, Burr is a graduate of Wake Forest University. Before seeking elected office, he was a sales manager for a lawn equipment company. In 1994, he was elected to the U.S. House of Representatives for North Carolina's 5th congressional district as part of the Republican Revolution. Burr was first elected to the United States Senate in 2004. From 2015 to 2020, he chaired the Senate Intelligence Committee. In 2016, he announced that he would not seek reelection in 2022. Burr temporarily stepped down as chair of the Intelligence Committee on May 15, 2020, amid an FBI investigation into allegations of insider trading during the COVID-19 pandemic. On January 19, 2021, the Departm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Coast Guard
The United States Coast Guard (USCG) is the maritime security, search and rescue, and Admiralty law, law enforcement military branch, service branch of the armed forces of the United States. It is one of the country's eight Uniformed services of the United States, uniformed services. The service is a maritime, military, multi-mission service unique among the United States military branches for having a maritime law enforcement mission with jurisdiction in both domestic and international waters and a Federal government of the United States, federal regulatory agency mission as part of its duties. It is the largest coast guard in the world, rivaling the capabilities and size of most Navy, navies. The U.S. Coast Guard protects the United States' borders and economic and security interests abroad; and defends its sovereignty by safeguarding sea lines of communication and commerce across U.S. territorial waters and its Exclusive economic zone, Exclusive Economic Zone. Due to ever-ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maneuvering Thruster
Manoeuvering thrusters (bow thrusters and stern thrusters) are transversal propulsion devices built into or mounted to either the bow or stern (front or back, respectively) of a ship or boat to make it more manoeuvrable. Bow thrusters make docking easier, since they allow the captain to turn the vessel to port or starboard side, without using the main propulsion mechanism which requires some forward motion for turning; The effectiveness of a thruster is curtailed by any forward motion due to the Coandă effect. A stern thruster is of the same principle, fitted at the stern. Sufficiently large vessels often have multiple bow thrusters and stern thrusters. Tunnel thrusters Large vessels usually have one or more tunnel thrusters built into the bow, below the waterline. An impeller in the tunnel can create thrust in either direction that makes the ship turn. Most tunnel thrusters are driven by electric motors, but some are hydraulically powered. These bow thrusters, also known as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azimuth Thruster
An azimuth thruster is a configuration of marine propellers placed in pods that can be rotated to any horizontal angle (azimuth), making a rudder redundant. These give ships better maneuverability than a fixed propeller and rudder system. Types of azimuth thrusters There are two major variants, based on the location of the motor: # Mechanical transmission, which connects a motor inside the ship to the outboard unit by gearing. The motor may be diesel or diesel-electric. Depending on the shaft arrangement, mechanical azimuth thrusters are divided into L-drive and Z-drive. An L-drive thruster has a vertical input shaft and a horizontal output shaft with one right-angle gear. A Z-drive thruster has a horizontal input shaft, a vertical shaft in the rotating column and a horizontal output shaft, with two right-angle gears. # Electrical transmission, more commonly called pods, where an electric motor is fitted in the pod itself, connected directly to the propeller without ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cummins
Cummins Inc. is an American multinational corporation, multinational corporation that designs, manufactures, and distributes engines, electric vehicle components, and power generation products. Cummins also services engines and related equipment, including Fuel injection, fuel systems, air handling systems Control system, controls, filtration, Emission control system, emission control, Electricity generation, electrical power generation systems, and Engine control unit, engine control units. Headquartered in Columbus, Indiana, Cummins sells in approximately 190 countries and territories through a network of more than 600 company-owned and independent distributors and approximately 7,200 dealers. History The Cummins Engine Company was founded in Columbus, Indiana on February 3, 1919, by mechanic Clessie Cummins and banker William Glanton Irwin. The company focused on developing the diesel engine, which was invented 20 years earlier. Despite several well-publicized endu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beach Nourishment
Beach nourishment (also referred to as beach renourishment, beach replenishment, or sand replenishment) describes a process by which sediment, usually sand, lost through longshore drift or erosion is replaced from other sources. A wider beach can reduce storm damage to coastal structures by dissipating energy across the surf zone, protecting upland structures and infrastructure from storm surges, tsunamis and unusually high tides. Beach nourishment is typically part of a larger integrated coastal zone management aimed at coastal defense. Nourishment is typically a repetitive process because it does not remove the physical forces that cause erosion; it simply mitigates their effects. The first nourishment project in the United States was at Coney Island, New York in 1922 and 1923. It is now a common shore protection measure used by public and private entities. History The first nourishment project in the U.S. was constructed at Coney Island, New York in 1922–1923. Before ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cubic Yard
A cubic yard (symbol yd3)IEEE Std 260.1-2004 is an Imperial unit, imperial / U.S. customary unit, U.S. customary (non-SI non-Metric system, metric) unit of volume used in Canada and the United States. It is defined as the volume of a cube with sides of 1 yard (3 Foot (length), feet, 36 inches, 0.9144 meters) in length. Symbols and abbreviations The Institute of Electrical and Electronics Engineers, IEEE symbol for the cubic yard is yd3. A non-standard abbreviation is cu yd. Cubic yard per second One cubic yard per second (1 yd3/s) is a unit of volume flow rate. It corresponds to one cubic yard passing through a specified area every second. Cubic yard per minute One cubic yard per minute (1 yd3/min) is a unit of volume flow rate. It corresponds to one cubic yard passing through a specified area every minute. * 1 yd3/s = 60 yd3/min Conversions See also * cubic foot * cubic inch * Square yard * Orders of magnitude (volume) * Conversion of units * Cube (arithmetic), cube root ** C ... [...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] |
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 sides 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 cora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wanchese, North Carolina
Wanchese ( ) is a census-designated place (CDP) on Roanoke Island in Dare County, North Carolina, United States. It was named after Wanchese, the last known ruler of the Roanoke Native American tribe encountered by English colonists in the sixteenth century. The population was 1,642 at the 2010 census. Today, Wanchese is the center of commercial fishing and boatbuilding on the Outer Banks. The residents of Wanchese are governed by the Dare County Board of Commissioners. Wanchese is part of District 1, along with Manteo, Roanoke Island and Manns Harbor. Geography Wanchese is located at , and on the southern end of Roanoke Island. According to the United States, the CDP has a total area of , of which is land and (14.26%) is water. History ''Also see: History of Roanoke Island'' Archeological evidence shows that Wanchese was the site of the first fishing village on Roanoke Island. Indigenous people inhabited the area 1500 years ago, and their various cultures us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maritime Call Sign
Maritime call signs are call signs assigned as unique identifiers to ships and boats. All radio transmissions must be individually identified by the call sign. Merchant and naval vessels are assigned call signs by their national licensing authorities. History One of the earliest applications of radiotelegraph operation, long predating broadcast radio, were marine radio stations installed aboard ships at sea. In the absence of international standards, early transmitters constructed after Guglielmo Marconi's first transatlantic message in 1901 were issued arbitrary two-letter calls by radio companies, alone or later preceded by a one-letter company identifier. These mimicked an earlier railroad telegraph convention where short, two-letter identifiers served as Morse code abbreviations to denote the various individual stations on the line (for instance, AX could represent Halifax). "N" and two letters would identify U.S. Navy; "M" and two letters would be a Marconi station. On ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
