Information about submersible

16th century painting of Alexander the Great, lowered in a glass submersible

Retired modern submersible Star III of Scripps Institution of Oceanography

Błotniak

A submersible is a type of underwater vessel with limited mobility which is typically transported to its area of operation by a surface vessel or large submarine. Apart from size, the technical difference between a 'submersible' and a 'submarine' is that submersibles are not totally autonomous. They may rely on a support facility or vessel for charging of batteries, high pressure air, high pressure oxygen replenishment, or all of these.

A submersible vessel has greater mobility, using propeller screws or pump-jets, than submersible chambers (diving chambers or diving bells), which are suspended from a cable and winch operated from the diving support vessel.

Operation

Submersibles differ from submarines in that submersibles typically have shorter range, and operate underwater almost exclusively, having little function at the surface. Many submersibles operate on a "tether" or "umbilical", remaining connected to a tender (a submarine, surface vessel or platform).

ROVs

Small unmanned submersibles called "marine remotely operated vehicles" or MROVs are widely used today to work in water too deep or too dangerous for divers.

Remotely operated vehicles (ROVs) repair offshore petroleum platforms and attach cables to sunken ships to hoist them. Such remotely operated vehicles are attached by a tether (a thick cable providing power and communications) to control center on a ship. Operators on the ship see video images sent back from the robot and may control its propellers and manipulator arm. The wreck of the Titanic was explored by such a vehicle, as well as by a manned vessel.

Among the most famous submersibles is the deep-submergence research vessel DSV Alvin.

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Underwater is a term describing the realm below the surface of water where the water exists in a natural feature (called a body of water) such as an ocean, sea, lake, pond, or river. Three quarters of the planet Earth is covered by water.
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propeller is essentially a type of fan which transmits power by converting rotational motion into thrust for propulsion of a vehicle such as an aircraft, ship, or submarine through a fluid such as water or air, by rotating two or more twisted blades about a central shaft, in a
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pump-jet or water jet is a marine system that creates a jet of water for propulsion. The mechanical arrangement may be a ducted propeller with nozzle, or a centrifugal pump and nozzle.
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A diving chamber or submersible chamber has two main functions:

as a simpler form of submersible vessel to take divers underwater and to provide a temporary base and retrieval system in the depths;
as a land or ship-based hyperbaric chamber

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A diving bell also known as a wet bell is a cable-suspended airtight chamber, open at the bottom like a moon pool structure, that is lowered underwater to operate as a base or a means of transport for a small number of divers.
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cable is one or more wires or optical fibers bound together, typically in a common protective jacket or sheath. The individual wires or fibers inside the jacket may be covered or insulated. Combination cables may contain both electrical wires and optical fibers.
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winch is a mechanical device that is used to wind up a rope or wire rope (also called "cable"). In its simplest form it consists of a spool and attached crank. The spool can also be called the winch drum.
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A diving support vessel is a ship that is used as a floating base for professional diving projects.

Commercial Diving Support Vessels emerged during the 1960s and 1970s when the need arose for diving operations to be performed below and around oil production platforms and
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submarine is a watercraft that can operate underwater. Military submarines were first widely used in World War I and are used by all major navies today. Civilian submarines and submersibles are used for scientific work at depths too great for human divers.
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Tender may mean:

In finance: A process by which one can seek prices and terms for a particular project (such as a construction job) to be carried out under a contract.
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Petroleum (Latin Petroleum derived from Greek πέτρα (Latin petra) - rock + έλαιον (Latin oleum) - oil) or crude oil
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RMS Titanic, a British Olympic-class ocean liner, became famous as the largest ocean liner built in her day and also for sinking on her maiden voyage in 1912 with a huge loss of life.
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Alvin (DSV-2) is a 16-ton, manned deep-ocean research submersible owned by the United States Navy and operated by the Woods Hole Oceanographic Institution (WHOI) in Woods Hole, Massachusetts.
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U-boat is the anglicized version of the German word U-Boot (help info ) , itself an abbreviation of Unterseeboot
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A midget submarine is any submarine under 150 tons, typically operated by one or two but up to 6 or 8 crew, with no on-board living accommodation. Midget submarines normally work with mother ships, from which they are launched and recovered, and which provide living accommodation
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A moveable submersible bridge lowers the bridge deck below the water level to permit waterborne traffic to use the waterway. This differs from a lift bridge or table bridge, which operate by raising the roadway.
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Submersible

Operation

ROVs

See also

External links