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USS Greenling (SSN-614)
USS ''Greenling'' (SSN-614) was a . She was the second ship of the United States Navy to be named for the greenling, an elongated, fine-scaled fish found from Kamchatka to California. Her keel was laid down on 15 August 1961 by General Dynamics Electric Boat of Groton, Connecticut. On 10 April 1963, ''Thresher'', the lead ship of ''Greenlings class, was lost due to severe design flaws in her non-nuclear piping systems. Because she was still early in the construction process, ''Greenling'' was one of three selected ''Thresher''-class submarines selected for conversion to the "improved ''Thresher'' class." (The other two were SSN-613 ''Flasher'' and SSN-615 '' Gato''.) She was launched on 4 April 1964 sponsored by Mrs. H.C. Bruton. On 29 April, she was towed to Quincy, Massachusetts, for lengthening and submarine safety program ( SUBSAFE) modifications. Modifications included increased buoyancy and adding 13 feet 9 inches of length to the hull, providing improved liv ...
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SUBSAFE
The Submarine Safety Program (SUBSAFE) is a quality assurance program of the United States Navy designed to maintain the safety of its submarine fleet, specifically, to provide maximum reasonable assurance that submarine hulls will stay watertight, and that they can recover from unanticipated flooding. SUBSAFE covers all systems exposed to sea pressure or critical to flooding recovery. All work done and all materials used on those systems are tightly controlled to ensure the material used in their assembly as well as the methods of assembly, maintenance, and testing are correct. They require certification with traceable quality evidence which track the item from the point of manufacture (including all records of the creation of the product, i.e. source materials as well as smelting and hardening process for metals) to the point of installation within a SUBSAFE boundary. These measures increase the cost of submarine construction and maintenance. SUBSAFE addresses only flooding; ...
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Ships Built In Groton, Connecticut
A ship is a large watercraft, vessel that travels the world's oceans and other Waterway, navigable waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research and fishing. Ships are generally distinguished from boats, based on size, shape, load capacity and purpose. Ships have supported Geographic exploration, exploration, Global trade, trade, Naval warfare, warfare, Human migration, migration, colonization, and science. Ship transport is responsible for the largest portion of world commerce. The word ''ship'' has meant, depending on the era and the context, either just a large vessel or specifically a Full-rigged ship, ship-rigged sailing ship with three or more masts, each of which is Square rig, square-rigged. The earliest historical evidence of boats is found in Egypt during the 4th millennium BCE. In 2024, ships had a global cargo capacity of 2.4 billion tons, with the three largest classes being ships carrying dry bulk (43%), ...
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Keyport, Washington
Keyport is an unincorporated community and census-designated place (CDP) located in Kitsap County, Washington, United States. Situated at the eastern terminus of State Route 308 on the Kitsap Peninsula, Keyport is known for its small population and charming coastal setting. According to the 2010 census, the Keyport CDP had a total population of 554 residents. To its close west, Keyport and Virginia have maritime borders with each other. The community of Keyport was named after Keyport, New Jersey, in 1896. Its nickname is "Torpedo Town USA". Keyport is situated on a small peninsula named the Keyport Peninsula, jutting into Liberty Bay a few kilometers southeast of Poulsbo. It is the home of a small United States Navy depot tasked with ranging and repairing torpedoes for the US Navy and allies. Keyport Bible Church, which was established in the early 1900s and incorporated in 1926, stands as the sole church in Keyport. The church's building was dedicated on May 2, 1937, and ...
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Naval Undersea Museum
The United States Naval Undersea Museum is a naval museum located at Keyport, Washington. It is one of the 10 Navy museums that are operated by the Naval History & Heritage Command. It sits next to a branch of the Naval Undersea Warfare Center. History The Naval Undersea Museum Foundation is a 501(c)(3) non-profit Washington State corporation established in 1980 as a philanthropic organization. Through fund-raising efforts of the Foundation, the Naval Undersea Museum and Conference Center complex in Keyport, Washington, opened in 1995. The Naval Undersea Museum combines naval history, undersea technology, and marine science. This new building, filled with more than of exhibits, holds the largest collection of naval undersea history and science artifacts in the United States. The museum's research library contains more than 6,500 volumes that support the exhibits and provide extensive information on undersea history, science, and operations. It also holds a complete set of World ...
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Puget Sound Naval Shipyard
Puget Sound Naval Shipyard, officially Puget Sound Naval Shipyard and Intermediate Maintenance Facility (PSNS & IMF), is a United States Navy shipyard covering 179 acres (0.7 km2) on Puget Sound at Bremerton, Washington in uninterrupted use since its establishment in 1891; it has also been known as Navy Yard Puget Sound, Bremerton Navy Yard, and the Bremerton Naval Complex. It is bordered on the south by Sinclair Inlet, on the west by the Bremerton Annex of Naval Base Kitsap, and on the north and east by the city of Bremerton, Washington. It is the Pacific Northwest's largest naval shore facility and one of Washington (state), Washington state's largest industrial installations. PSNS & IMF provides the Navy with Repair and maintenance, maintenance, modernization, and technical and logistics support, and employs 15,000 people which makes it the largest public shipyard in terms of personnel assigned. History Puget Sound Naval Shipyard was established in 1891 as a Naval S ...
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Ship And Submarine Recycling Program
The Ship-Submarine Recycling Program (SRP) is the process that the United States Navy uses to dispose of decommissioned nuclear vessels. SRP takes place only at the Puget Sound Naval Shipyard (PSNS) in Bremerton, Washington, but the preparations can begin elsewhere. Program overview Defueling and decommissioning Before SRP can begin, the vessel's nuclear fuel must be removed, and defueling usually coincides with decommissioning. Until the fuel is removed, the vessel is referred to as "USS ''Name''," but afterward, the "USS" prefix is dropped and it is referred to as "ex-''Name''." Reusable equipment is removed at the same time as the fuel. Spent fuel storage Spent nuclear fuel is shipped by rail to the Naval Reactor Facility in the Idaho National Laboratory (INL), located northwest of Idaho Falls, Idaho, where it is stored in special canisters. Hull salvage At PSNS, the SRP proper begins. The salvage workers cut the submarine into three or four pieces: the aft sec ...
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Maine
Maine ( ) is a U.S. state, state in the New England region of the United States, and the northeasternmost state in the Contiguous United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Provinces and territories of Canada, Canadian provinces of New Brunswick and Quebec to the northeast and northwest, and shares a maritime border with Nova Scotia. Maine is the largest U.S. state, state in New England by total area, nearly larger than the combined area of the remaining five states. Of the List of states and territories of the United States, 50 U.S. states, it is the List of U.S. states and territories by area, 12th-smallest by area, the List of U.S. states and territories by population, 9th-least populous, the List of U.S. states by population density, 13th-least densely populated, and the most rural. Maine's List of capitals in the United States, capital is Augusta, Maine, Augusta, and List of municipalities in Maine, its most populous c ...
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Portsmouth Naval Shipyard
The Portsmouth Naval Shipyard (PNS), often called the Portsmouth Navy Yard, is a United States Navy shipyard on Seavey's Island in Kittery, Maine, bordering Portsmouth, New Hampshire. The naval yard lies along the southern boundary of Maine on the Piscataqua River. Founded on June 12, 1800, PNS is the U.S. Navy's oldest continuously operating shipyard. Today, most of its work concerns the overhaul, repair, and modernization of submarines. As of November 2021, the shipyard employed more than 6,500 federal employees. As well, some of the work is performed by private corporations (e.g., Delphinius Engineering of Eddystone, Pennsylvania; Oceaneering International of Chesapeake, Virginia; Orbis Sibro of Mount Pleasant, South Carolina; and Q.E.D. Systems Inc. of Virginia Beach, Virginia). History The Portsmouth Naval Shipyard was established on June 12, 1800, during the administration of President John Adams. It sits on a cluster of conjoined islands called Seavey's Island in t ...
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Bermuda
Bermuda is a British Overseas Territories, British Overseas Territory in the Atlantic Ocean, North Atlantic Ocean. The closest land outside the territory is in the American state of North Carolina, about to the west-northwest. Bermuda is an archipelago consisting of List of islands of Bermuda, 181 islands, although the most significant islands are connected by bridges and appear to form one landmass. It has a land area of . Bermuda has a tropical climate, with warm winters and hot summers. Its climate also exhibits Oceanic climate, oceanic features similar to other coastal areas in the Northern Hemisphere with warm, moist air from the ocean ensuring relatively high humidity and stabilising temperatures. Bermuda is prone to severe weather from Westerlies#Interaction with tropical cyclones, recurving tropical cyclones; however, it receives some protection from a coral reef and its position north of the Main Development Region, which limits the direction and severity of approach ...
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Submarine Depth Ratings
Depth ratings are primary design parameters and measures of a submarine's ability to operate underwater. The depths to which submarines can dive are limited by the strengths of their hulls. Ratings The hull of a submarine must be able to withstand the forces created by the outside water pressure being greater than the inside air pressure. The outside water pressure increases with depth and so the stresses on the hull also increase with depth. Each of depth puts another atmosphere (1 bar, 14.7 psi, 101 kPa) of pressure on the hull, so at , the hull is withstanding of water pressure. Test depth This is the maximum depth at which a submarine is permitted to operate under normal peacetime circumstances, and is tested during sea trials. The test depth is set at two-thirds (0.66) of the design depth for United States Navy submarines, while the Royal Navy sets test depth at 4/7 (0.57) the design depth, and the German Navy sets it at exactly one-half (0.50) of design depth. Operati ...
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