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2. Dry deck shelter - Wikipedia

   en.wikipedia.org/wiki/Dry_Deck_Shelter

   Dry deck shelter. USS Dallas (SSN-700) departs Souda Bay harbor with dry deck shelter attached in 2004. A dry deck shelter (DDS) is a removable module that can be attached to a submarine to allow divers easy exit and entrance while the boat is submerged. The host submarine must be specially modified to accommodate the DDS, with the appropriate ...

3. Carvel (boat building) - Wikipedia

   en.wikipedia.org/wiki/Carvel_(boat_building)

   Carvel frames are much heavier than clinker ribs. Carvel built or carvel planking is a method of boat building in which hull planks are laid edge to edge and fastened to a robust frame, thereby forming a smooth surface. Traditionally the planks are neither attached to, nor slotted into, each other, having only a caulking sealant between the ...

4. Bulkhead (partition) - Wikipedia

   en.wikipedia.org/wiki/Bulkhead_(partition)

   Bulkhead (partition) Compartmentalisation of a ship, to reduce floodability. A bulkhead is an upright wall within the hull of a ship, within the fuselage of an airplane, or a car. Other kinds of partition elements within a ship are decks and deckheads.

5. Compartment (ship) - Wikipedia

   en.wikipedia.org/wiki/Compartment_(ship)

   Compartment (ship) A compartment is a portion of the space within a ship defined vertically between decks and horizontally between bulkheads. It is analogous to a room within a building, and may provide watertight subdivision of the ship's hull important in retaining buoyancy if the hull is damaged. Subdivision of a ship's hull into watertight ...

6. Cofferdam - Wikipedia

   en.wikipedia.org/wiki/Cofferdam

   A cofferdam is an enclosure built within a body of water to allow the enclosed area to be pumped out or drained. [1] This pumping creates a dry working environment so that the work can be carried out safely. Cofferdams are commonly used for construction or repair of permanent dams, oil platforms, bridge piers, etc., built within water.

7. Waterline - Wikipedia

   en.wikipedia.org/wiki/Waterline

   The waterline is the line where the hull of a ship meets the surface of the water. A waterline can also refer to any line on a ship's hull that is parallel to the water's surface when the ship is afloat in a level trimmed position. Hence, waterlines are a class of "ships lines" used to denote the shape of a hull in naval architecture lines ...

8. Freeboard (nautical) - Wikipedia

   en.wikipedia.org/wiki/Freeboard_(nautical)

   Freeboard (nautical) A graphical representation of the dimensions used to describe a ship. f is the freeboard. In sailing and boating, a vessel's freeboard is the distance from the waterline to the upper deck level, measured at the lowest point of sheer where water can enter the boat or ship. [1] In commercial vessels, the latter criterion ...

9. Glossary of nautical terms (A–L) - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_nautical_terms...

   On or above the deck; in plain view; not hiding anything. Pirates would often hide their crews below decks, thereby creating the false impression that an encounter with another ship was a casual matter of chance rather than a planned assault. above-water hull The section of a vessel's hull above the waterline; the visible part of a ship.