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USCGC Henry Blake (WLM-563)
USCGC ''Henry Blake'' (WLM-563) is a United States Coast Guard based out of Naval Station Everett in Everett, WA. ''Henry Blake'' was built by the Marinette Marine Corporation in 1998 and launched in 1999 out of Marinette, WI. The 13th of 14 Keeper-class cutters, the ''Henry Blake'' is one of the most advanced cutters currently in the United States Coast Guard's fleet. The name ''Henry Blake'' originates from the first New Dungeness Lighthouse keeper Henry Blake. All 14 Keeper-class cutters are named after lighthouse keepers. Thus ''Henry Blake''s motto is "Keeper of the Tradition." ''Henry Blake''s primary mission is the maintenance of over 235 aids to navigation in the Puget Sound area and along the coast of Washington. Secondary missions include marine environmental protection, search and rescue, and homeland security. Advanced equipment ''Henry Blake'' contains advanced navigational and mechanical equipment. Five primary systems are noteworthy, allowing for the crew to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Blake (lighthouse Keeper)
Henry H. Blake (1837–1871) was the first New Dungeness Lighthouse keeper. Blake began his term after the New Dungeness Lighthouse was first lighted on December 14, 1857. Blake overcame the loneliness and dreariness associated with the profession of lighthouse keeping, serving for over a decade as the New Dungeness light's only attendant. He steadfastly kept the kerosene lantern lighted each night, and tolled the large bell constantly when fog rolled in to warn mariners away from the spit. In 1862 he married Mary Ann McDonnell. Blake is considered to be one of the first and best examples of commitment to mariners' safety. A little known fact about Blake is how in 1868 he took in and cared for a pregnant Native American woman of the Tsimshian tribe after she and a group of her fellow tribesmen were ambushed by members of the Clallam tribe. Upon demands by the Clallam attackers to give up the pregnant woman, Blake refused. Later the Clallam attackers were punished, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puget Sound
Puget Sound ( ) is a sound of the Pacific Northwest, an inlet of the Pacific Ocean, and part of the Salish Sea. It is located along the northwestern coast of the U.S. state of Washington. It is a complex estuarine system of interconnected marine waterways and basins, with one major and two minor connections to the open Pacific Ocean via the Strait of Juan de Fuca—Admiralty Inlet being the major connection and Deception Pass and Swinomish Channel being the minor. Water flow through Deception Pass is approximately equal to 2% of the total tidal exchange between Puget Sound and the Strait of Juan de Fuca. Puget Sound extends approximately from Deception Pass in the north to Olympia in the south. Its average depth is and its maximum depth, off Jefferson Point between Indianola and Kingston, is . The depth of the main basin, between the southern tip of Whidbey Island and Tacoma, is approximately . In 2009, the term Salish Sea was established by the United States Board o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Side-scan Sonar
Side-scan sonar (also sometimes called side scan sonar, sidescan sonar, side imaging sonar, side-imaging sonar and bottom classification sonar) is a category of sonar system that is used to efficiently create an image of large areas of the sea floor. Uses Side-scan sonar may be used to conduct surveys for marine archaeology; in conjunction with seafloor samples it is able to provide an understanding of the differences in material and texture type of the seabed. Side-scan sonar imagery is also a commonly used tool to detect debris items and other obstructions on the seafloor that may be hazardous to shipping or to seafloor installations by the oil and gas industry. In addition, the status of pipelines and cables on the seafloor can be investigated using side-scan sonar. Side-scan data are frequently acquired along with bathymetric soundings and sub-bottom profiler data, thus providing a glimpse of the shallow structure of the seabed. Side-scan sonar is also used for fisheries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helmsman
A helmsman or helm (sometimes driver) is a person who steering, steers a ship, sailboat, submarine, other type of maritime vessel, or spacecraft. The rank and seniority of the helmsman may vary: on small vessels such as fishing vessels and yachts, the functions of the helmsman are combined with that of the skipper (boating), skipper; on larger vessels, there is a separate officer of the watch who is responsible for the safe navigation of the ship and gives orders to the helmsman, who physically steers the ship in accordance with those orders. In the merchant navy, the person at the Ship's wheel, helm is usually an able seaman, particularly during ship arrivals, departures, and while maneuvering in restricted waters or other conditions requiring precise steering. An ordinary seaman is commonly restricted to steering in open waters. Moreover, military ships may have a Seaman (rank), seaman or quartermaster at the helm. A professional helmsman maintains a steady course, properly ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamic Positioning
Dynamic positioning (DP) is a computer-controlled system to automatically maintain a vessel's position and heading by using its own propellers and thrusters. Position reference sensors, combined with wind sensors, motion sensors and gyrocompasses, provide information to the computer pertaining to the vessel's position and the magnitude and direction of environmental forces affecting its position. Examples of vessel types that employ DP include ships and semi-submersible mobile offshore drilling units (MODU), oceanographic research vessels, cable layer ships and cruise ships. The computer program contains a mathematical model of the vessel that includes information pertaining to the wind and current drag of the vessel and the location of the thrusters. This knowledge, combined with the sensor information, allows the computer to calculate the required steering angle and thruster output for each thruster. This allows operations at sea where mooring or anchoring is not feasible du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Differential GPS
Differential Global Positioning Systems (DGPSs) supplement and enhance the positional data available from global navigation satellite systems (GNSSs). A DGPS for GPS can increase accuracy by about a thousandfold, from approximately to . DGPSs consist of networks of fixed position, ground-based reference stations. Each reference station calculates the difference between its highly accurate known position and its less accurate satellite-derived position. The stations broadcast this data locally—typically using ground-based transmitters of shorter range. Non-fixed (mobile) receivers use it to correct their position by the same amount, thereby improving their accuracy. The United States Coast Guard (USCG) and the Canadian Coast Guard (CCG) each run DGPSs in the United States and Canada on longwave radio frequencies between and near major waterways and harbors. The USCG's DGPS was named NDGPS (Nationwide DGPS) and was jointly administered by the Coast Guard and the U.S. Departmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Chart Display And Information System
An Electronic Chart Display and Information System (ECDIS) is a geographic information system used for nautical navigation that complies with International Maritime Organization (IMO) regulations as an alternative to paper nautical charts. IMO refers to similar systems not meeting the regulations as Electronic Chart Systems (ECSs). An ECDIS system displays the information from Electronic Navigational Charts (ENC) and integrates position information from position, heading and speed through water reference systems and optionally other navigational sensors. Other sensors which could interface with an ECDIS are radar, Navtex, Automatic Identification Systems (AIS), and depth sounders. In recent years concerns from the industry have been raised as to the system's security especially with regards to cyber attacks and GPS spoofinattacks Application ECDIS provides continuous position and navigational safety information. The system generates audible and/or visual alarms when the ves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Search And Rescue
Search and rescue (SAR) is the search for and provision of aid to people who are in distress or imminent danger. The general field of search and rescue includes many specialty sub-fields, typically determined by the type of terrain the search is conducted over. These include mountain rescue; ground search and rescue, including the use of search and rescue dogs; urban search and rescue in cities; combat search and rescue on the battlefield and air-sea rescue over water. International Search and Rescue Advisory Group (INSARAG) is a UN organization that promotes the exchange of information between national urban search and rescue organizations. The duty to render assistance is covered by Article 98 of the UNCLOS. Definitions There are many different definitions of search and rescue, depending on the agency involved and country in question. *Canadian Forces: "Search and Rescue comprises the search for, and provision of aid to, persons, ships or other craft which are, or are fear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington (state)
Washington (), officially the State of Washington, is a state in the Pacific Northwest region of the Western United States. Named for George Washington—the first U.S. president—the state was formed from the western part of the Washington Territory, which was ceded by the British Empire in 1846, by the Oregon Treaty in the settlement of the Oregon boundary dispute. The state is bordered on the west by the Pacific Ocean, Oregon to the south, Idaho to the east, and the Canadian province of British Columbia to the north. It was admitted to the Union as the 42nd state in 1889. Olympia is the state capital; the state's largest city is Seattle. Washington is often referred to as Washington state to distinguish it from the nation's capital, Washington, D.C. Washington is the 18th-largest state, with an area of , and the 13th-most populous state, with more than 7.7 million people. The majority of Washington's residents live in the Seattle metropolitan area, the center of trans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Dungeness Light
The New Dungeness Lighthouse is a functioning aid to navigation on the Strait of Juan de Fuca, located on the Dungeness Spit in the Dungeness National Wildlife Refuge near Sequim, Clallam County, in the U.S. state of Washington. It has been in continuous operation since 1857, although the current lighthouse tower is shorter than when first constructed. History The New Dungeness Light was first lit in 1857 and was the second lighthouse established in the Washington territory, following the Cape Disappointment Light of 1856. Originally, the lighthouse was a 1½-story duplex with a tower rising from the roof. The tower was painted black on the top half and white on the lower section. Over time, the tower developed structural cracks, most likely from a combination of earthquakes and weather erosion. In 1927, the cracks in the tower were so severe that the district's chief lighthouse engineer, Clarence Sherman, noting the structural instabilities, feared that the tower would toppl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marinette Marine
Fincantieri Marinette Marine (FMM) is an American shipbuilding firm in Marinette, Wisconsin. Marinette Marine was a subsidiary of Manitowoc Marine Group of Wisconsin from 2000 to 2009, when it was sold to Fincantieri Marine Group. History Marinette Marine Corporation (MMC) was founded on the Menominee River in Marinette, Wisconsin, in 1942 as part of the growth in the American shipbuilding industry during World War II. In 2000 Marinette Marine, a privately held company, was purchased by The Manitowoc Company for approximately $48 million. On August 4, 2008, the Manitowoc Company announced that it had signed an agreement to sell their Manitowoc Marine Group division, which includes Marinette Marine, to Fincantieri Marine Group Holdings, Inc. and minority investor Lockheed Martin. The sale was completed on January 1, 2009 to Fincantieri. The net purchase price in the all-cash deal was approximately $120 million. Since its founding, Marinette Marine has produced more than 1, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
