cargo hold by Chemical Man

Cargo in holds may be either packaged in crates, bales, etc., or unpackaged (bulk cargo). Access to holds is by a large hatch at the top. Ships have had holds for centuries; an alternative way to carry cargo is in standardized shipping containers, which may be loaded into appropriate holds or carried on deck.Holds in older ships were below the orlop deck, the lower part of the interior of a ship's hull, especially when considered as storage space, as for cargo. In later merchant vessels, it extended up through the decks to the underside of the weather deck.Some ships have built in cranes and can load and unload their own cargo. Other ships must have dockside cranes or gantry cranes to load and unload.
 

What is the cargo hold?

Cargo in holds may be either packaged in crates, bales, etc., or unpackaged (bulk cargo). Access to holds is by a large hatch at the top. ... Holds in older ships were below the orlop deck, the lower part of the interior of a ship's hull, especially when considered as storage space, as for cargo

What is a tween deck on a ship?

Tween Deck: ''tween' is a colloquial abridging of the word 'between.' In a ship, the tween deck actually means an empty space separating or between (tween) two other decks in the hull of a vessel. ... On such decks, there is no raised forecastle or lowered quarterdeck.

What is a cargo hatch?

Open Hatch General Cargo, abbreviated OHGC), is a ship designed to transport forest products, Bulk cargos, unitized cargoes, project cargoes, and containers. The vessel is typically fitted with two Gantry cranes for self-loading and unloading, with a typical SWL (safe working load) between 30 and 80 tons.
 

What is in the engine room of a ship?

The engine room of a motor vessel typically contains several engines for different purposes. Main or propulsion engines are used to turn the ship's propeller and move the ship through the water. They typically burn diesel oil or heavy fuel oil and may be able to switch between the two.