It's a Marine Things

Floating Drydock

2013-01-27T22:32:00.004+04:00

A floating drydock is a type of pontoon for dry docking ships, possessing floodable buoyancy chambers and a "U"-shaped cross-section. The walls are used to give the drydock stability when the floor or deck is below the surface of the water. When valves are opened, the chambers fill with water, causing the drydock to float lower in the water. The deck becomes submerged and this allows a ship to be moved into position inside. When the water is pumped out of the chambers, the drydock rises and the ship is lifted out of the water on the rising deck, allowing work to proceed on the ship's hull.

A typical floating drydock involves multiple rectangular sections. These sections can be combined to handle ships of various lengths, and the sections themselves can come in different dimensions. Each section contains its own equipment for emptying the ballast and to provide the required services, and the addition of a bow section can facilitate the towing of the drydock once assembled. For smaller boats, one-piece floating drydocks can be constructed, potentially coming with their own bow and steering mechanism

DRY DOCK

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A drydock is a narrow basin or vessel that can be flooded to allow a load to be floated in, then drained to allow that load to come to rest on a dry platform. Drydocks are used for the construction, maintenance and repair of ships, boats and other watercraft.

Marine Traffic.

2012-09-17T09:24:00.000+04:00

Real time ships positions based on automatic indentification system. Covers most ports, ships details and shipping routes worldwide.

visit: www.marinetraffic.com

Ship Dimensions

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Length Between Perpendiculars (LBP)

This is the distance between the forward perpendicular (FP) and the aft perpendicular (AP). It is usually called LPP for large ships. For small vessels, this value is usually equivalent to LWL.

Length on the Waterline (LWL)

This is the distance from the intersection of the waterplane at the bow, to the intersection of the waterplane with the stern. Often, this term is used to mean the design or target waterline length. See also DWL.

Length Overall (LOA)

This is the length of the boat from the tip of the bow to the furthest point aft on the stern.

Aft Perpendicular (AP)

This location is usually at the end of the design waterline (DWL) or located at the rudder post for large ships.

Forward perpendicular (FP)

This is the position on the boat where X=0. Usually this is set to the forward end of the design waterline

Depth (D)

This is a vague distance usually defined as the distance from the bottom of the hull (without appendages) to the highest point on the sheer line. If the program uses this number, it is only for sizing purposes and need not be perfectly accurate.

Freeboards (F)

This term refers to the distance from the waterline to the sheer line. Often, freeboards at very specific locations are needed, in which case you have to be very careful in determining exactly where and how the freeboards are measured. Sometimes the sheer point is not well defined.

Draft (T)

This is the distance from the baseline (Z=0) to the waterline at amidships. Normally, draft is used to mean the distance to the design waterline(DWL), but it often depends on its context of use. In addition, the bottom of the boat is usually located at the baseline so that draft refers to the distance from the bottom of the boat to the waterline. However, if the bottom of the boat is NOT located at the baseline, you still must calculate draft from the baseline.

Submarine

2012-07-08T17:52:00.001+04:00

Submarine

A submarine is a watercraft capable of independent operation under water. It differs from a submersible, which has more limited underwater capability. The term submarine most commonly refers to large crewed autonomous vessel. however, historically or colloquially, submarine can also refer to medium sized or smaller vessels. Submarines are used for tourism, undersea archaeology, military etc. Civilian uses for submarines include marine science, salvage, exploration and facility inspection/maintenance. Submarine can also be modified to perform more specialized functions such as search and research mission or undersea cable repair.
Most large submarine consist of a cylindrical body with hemispherical ends and vertical structure, usually located amidships, which houses communications and sensing devices as well as periscopes.

Submarine

Automatic Submarine

Details

Maritime Pilot Boat

2012-06-25T19:31:00.001+04:00

A Pilot is a mariner who guides ship through dangerous or congested waters, such as harbors or river mouths. Pilot are expert ship handlers who possess in depth knowledge of local waterways. Pilots are responsible under the law and maritime custom for conducting the safe navigation of the vessel. With the exception of the Panama Canal, the pilot is only an adviser, as the captain remains in legal command of the vessel.

Signal Flag H-Pilot on board

Signal Flag G-I required a Pilot

Pilot Boat

TUGBOAT

2012-06-20T22:27:00.001+04:00

A Tugboat is a boat that maneuvers vessels by pushing or towing them. Tugs move vessels that either should not move themselves, such as barges, disabled ships, or oil platforms. Tugboat are powerful for their size and strongly built, and some are ocean-going. Some tugboats serve as icebreakers or salvage boats. Early tugboats had steam engines, but now have diesel engines. Many tugboats have firefighting monitors, allowing them to assist in firefighting, especially in harbors.

Towing a Ship

Firefighting Tugboat

Ice breaking Tugboat

Pushing a barge

Passenger Ship

2012-06-12T20:10:00.004+04:00

passenger ship

A passenger ship is a ship whose primary function is to carry passengers. The category does not include cargo vessels which have accommodations for limited numbers of passengers.

Ferry Ship

Passenger ships include FERRIES, which are vessels for day or overnight short sea trips moving passengers and vehicles;

Ocean Liner

OCEAN LINERS, which typically are passenger or passenger-cargo vessels transporting passengers and often cargo on longer line voyages;

Cruise Ship

CRUISE SHIPS, which often transport passengers on round trips, in which the trip itself and the attractions of the ship and ports visited are the principal draw.

Tanker (Tankship)

2012-06-10T18:58:00.001+04:00

A Tanker (or Tank Ship or Tankship) is a ship designed to transport liquid in bulk. Major types of oil tank ship include the Oil tanker, The Chemical Tanker, and the Liquefied Natural Gas Carrier.

Oil Tanker

Cargo Ship (Freighter Ship)

2012-06-10T07:50:00.000+04:00

Cargo ship also called freighter ships, are ships or vessels that carry goods, materials and cargo in general from port to port. Cago ships are equipped for efficient loading and unloading......

2012-06-08T23:32:00.001+04:00

GA - General Arrangement Plan

2012-06-08T18:27:00.001+04:00

Classification Societies

Classification societies are organizations that survey and classify ships, both during their construction and operation. They are the principal means by which standards of construction and maintenance are enforced, and ship certificates can be issued by Flag States.

Classification societies are licensed by "Flag States" to undertake this work on their behalf.

Following are the principal classification societies:

American Bureau of Shipping (U.S.) (ABS) www.eagle.org
Bureau Veritas (France) (BV)www.bureauveritas.com
China Classification Society (CCS)www.ccs.org.cn
Det Norske Veritas (Norway) (DNV)www.dnv.com
Germanischer Lloyd (Germany) (GL)www.glc.de
Hellenic Register of Shipping (Greece) (HRS)www.hrs.gr
Indian Register of Shipping (India) (IRS)www.irclass.org
Korean Register of Shipping (Korea) (KRS)www.krs.co.kr
Lloyd's Register of Shipping (UK) (LR)www.lr.org
Nippon Kaiji Kyokai (Japan) Class NKwww.classnk.or.jp
Polski Rejestr Statkow (Poland) (PRS)www.prs.gda.pl
Registro Italiano Navale (Italy) (RINA)www.rina.it