|
Safeguard-class Rescue And Salvage Ship
The ''Safeguard'' class is a class of Towing, Salvage and Rescue Ship under the United States Navy. Development and design Like all ''Safeguard''-class rescue and salvage ships, ''Safeguard'' serves as an element of the United States Navy's Combat Logistics Support Force and provides rescue and salvage services to the fleet at sea. She also supported the protection of forces ashore through post-assault salvage operations in close proximity to the shore. She is designed to perform combat salvage, lifting, towing, off-ship firefighting, manned diving operations, and emergency repairs to stranded or disabled vessels. Salvage of disabled and stranded vessels Disabled or stranded ships might require various types of assistance before retraction or towing can be attempted. In her salvage hold, ''Safeguard'' carries transportable cutting and welding equipment, hydraulic and electric power sources, and de-watering gear. ''Safeguard'' also has salvage and machine shops, and hull r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USNS Safeguard (T-ARS-50)
USNS ''Safeguard'' (T-ARS-50), (formerly USS ''Safeguard'' (ARS-50)), is the lead ship of her class and the second United States Navy ship of that name. ''Safeguard'' was laid down on 8 November 1982 by Peterson Builders, Sturgeon Bay, Wisconsin; launched on 12 November 1983; and commissioned on 17 August 1985. ''Safeguard'' is the lead ship of the newest auxiliary rescue and salvage class of vessels constructed for the US Navy. The rugged construction of this steel-hulled vessel, combined with her speed and endurance, make ''Safeguard'' well-suited for rescue and salvage operations throughout the world. The hull below the waterline is ice-strengthened. USNS ''Safeguard''s sister ships are the , USNS ''Salvor'' (T-ARS-52) and . On 26 September 2007 USS ''Safeguard'' was transferred to the Military Sealift Command as USNS ''Safeguard'' (T-ARS-50). Mission and capabilities Like all ''Safeguard''-class rescue and salvage ships, ''Safeguard'' serves as an element of the Unite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperbaric Chamber
A diving chamber is a vessel for human occupation, which may have an entrance that can be sealed to hold an internal pressure significantly higher than ambient pressure, a pressurised gas system to control the internal pressure, and a supply of breathing gas for the occupants. There are two main functions for diving chambers: * as a simple form of submersible vessel to transport divers underwater and to provide a temporary base and retrieval system in the depths; * as a land, ship or offshore platform-based hyperbaric chamber or system, to artificially reproduce the hyperbaric conditions under the sea. Internal pressures above normal atmospheric pressure are provided for diving-related applications such as saturation diving and diver decompression, and non-diving medical applications such as hyperbaric medicine. Basic types of diving chambers There are two basic types of submersible diving chambers, differentiated by the way in which the pressure in the diving chamber is pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ships Built By Peterson Builders
A ship is a large watercraft that travels the world's oceans and other sufficiently deep 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 exploration, trade, Naval warfare, warfare, Human migration, migration, colonization, and science. After the 15th century, Columbian Exchange, new crops that had come from and to the Americas via the European seafarers significantly contributed to world population growth. 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. As of 2016, there were more than 49,000 merchant ships, totaling almost 1.8 billion Deadweigh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USNS Grapple (T-ARS-53)
USS ''Grapple'' (ARS-53) is a in the United States Navy. Her home port is Norfolk, Virginia. On 13 July 2006 ''Grapple'' was decommissioned from US Navy service and converted to civilian operation by Military Sealift Command. She was redesignated as USNS ''Grapple'' (T-ARS 53). Role Rescue and salvage ships render assistance to disabled ships, provide towing, salvage, diving, firefighting and heavy lift capabilities. The mission of the rescue and salvage ships is fourfold: to debeach stranded vessels, heavy lift capability from ocean depths, towing of other vessels, and manned diving operations. For rescue missions, these ships are equipped with fire monitors forward and amidships which can deliver either firefighting foam or sea water. The salvage holds of these ships are outfitted with portable equipment to provide assistance to other vessels in dewatering, patching, supply of electrical power and other essential service required to return a disabled ship to an operating con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USNS Salvor
USNS ''Salvor'' (T-ARS-52) is a , the second United States Navy ship of that name. ''Salvor'' was laid down on 16 September 1983 by Peterson Builders, Sturgeon Bay, Wisconsin; launched on 28 July 1984; and commissioned on 14 June 1986. ''Salvor'' is the third ship of the auxiliary rescue and salvage class of vessel constructed for the US Navy. The rugged construction of this steel-hulled vessel, combined with her speed and endurance, make ''Salvor'' well-suited for rescue and salvage operations throughout the world. The hull below the waterline is ice-strengthened. Her propulsion plant can develop 4200 shaft horsepower with four Caterpillar 399 diesel engines coupled in pairs to two shafts. She is fitted with a Controllable Reversible Pitch (CRP) propeller within a Kort nozzle on each shaft. The CRP propeller/Kort nozzle combination produces greater thrust and more maneuverability control than conventional propellers. ''Salvor'' is also configured with a bow thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Grasp
USS ''Grasp'' may refer to the following ships operated by the United States Navy: * , was launched 31 July 1943 and decommissioned 31 March 1978. She was transferred to South Korea and served as the ''Chang Won'' (ARS-25) until 1998 * , was launched 2 May 1985 and decommissioned 19 January 2006, and one of its most historical missions was to help in the recovery effort of TWA Flight 800. {{DEFAULTSORT:Grasp United States Navy ship names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aqueous Film Forming Foam
Firefighting foam is a foam used for fire suppression. Its role is to cool the fire and to coat the fuel, preventing its contact with oxygen, thus achieving suppression of the combustion. Firefighting foam was invented by the Russian engineer and chemist Aleksandr Loran in 1902.Loran and the fire extinguisher at p-lab.org The s used must produce foam in concentrations of less than 1%. Other components of fire-retardant foams are organic s (e.g., trimethyl- trimethylene glycol and [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kingpost (marine)
A king post (or king-post or kingpost) is a central vertical post used in architectural or bridge designs, working in tension to support a beam below from a truss apex above (whereas a crown post, though visually similar, supports items above from the beam below). In aircraft design a strut called a king post acts in compression, similarly to an architectural crown post. Usage in mechanical plant and marine engineering differs again, as noted below. Architecture A king post extends vertically from a crossbeam (the tie beam) to the apex of a triangular truss. The king post, itself in tension, connects the apex of the truss with its base, holding up the tie beam (also in tension) at the base of the truss. The post can be replaced with an iron rod called a king rod (or king bolt) and thus a king rod truss. The king post truss is also called a "Latin truss". In traditional timber framing, a crown post looks similar to a king post, but it is very different structurally: whereas th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Remotely Operated Underwater Vehicle
A remotely operated underwater vehicle (technically ROUV or just ROV) is a tethered underwater mobile device, commonly called ''underwater robot''. Definition This meaning is different from remote control vehicles operating on land or in the air. ROVs are unoccupied, usually highly maneuverable, and operated by a crew either aboard a vessel/floating platform or on proximate land. They are common in deepwater industries such as offshore hydrocarbon extraction. They are linked to a host ship by a neutrally buoyant tether or, often when working in rough conditions or in deeper water, a load-carrying umbilical cable is used along with a tether management system (TMS). The TMS is either a garage-like device which contains the ROV during lowering through the splash zone or, on larger work-class ROVs, a separate assembly which sits on top of the ROV. The purpose of the TMS is to lengthen and shorten the tether so the effect of cable drag where there are underwater currents is minimize ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anchor
An anchor is a device, normally made of metal , used to secure a vessel to the bed of a body of water to prevent the craft from drifting due to wind or current. The word derives from Latin ''ancora'', which itself comes from the Greek ἄγκυρα (ankȳra). Anchors can either be temporary or permanent. Permanent anchors are used in the creation of a mooring, and are rarely moved; a specialist service is normally needed to move or maintain them. Vessels carry one or more temporary anchors, which may be of different designs and weights. A sea anchor is a drag device, not in contact with the seabed, used to minimise drift of a vessel relative to the water. A drogue is a drag device used to slow or help steer a vessel running before a storm in a following or overtaking sea, or when crossing a bar in a breaking sea.. Overview Anchors achieve holding power either by "hooking" into the seabed, or mass, or a combination of the two. Permanent moorings use large masses (common ... [...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 breat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> USNS Grapple (T-ARS-53)")
