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2. Dorade box - Wikipedia

   en.wikipedia.org/wiki/Dorade_box

   The grey area indicates the deck of the boat. A dorade box (also called a dorade vent , collector box , cowl vent , or simply a "ventilator") is a type of vent that permits the passage of air in and out of the cabin or engine room of a boat while keeping rain, spray, and sea wash out.

3. Lock (water navigation) - Wikipedia

   en.wikipedia.org/wiki/Lock_(water_navigation)

   The boat enters the lock. 8–9. The boat enters the lock. 3. The lower gates are closed. 10. The upper gates are closed. 4–5. The lock is filled with water from upstream. 11–12. The lock is emptied by draining its water downstream. 6. The upper gates are opened. 13. The lower gates are opened. 7. The boat exits the lock. 14. The boat exits ...

4. Scupper - Wikipedia

   en.wikipedia.org/wiki/Scupper

   Two scuppers cut into either side of this outdoor stairwell prevent water from building up and making the stairs slippery. A scupper is an opening in the side walls of a vessel or an open-air structure, which allows water to drain instead of pooling within the bulwark or gunwales of a vessel, or within the curbing or walls of a building.

5. Bilge - Wikipedia

   en.wikipedia.org/wiki/Bilge

   Water that does not drain off the side of the deck or through a hole in the hull, which it would typically do via a scupper, instead drains down into the ship into the bilge. This water may be from rough seas, rain, leaks in the hull or stuffing box, or other interior spillage. The collected water must be pumped out to prevent the bilge from ...

6. MV Lestari Maju - Wikipedia

   en.wikipedia.org/wiki/MV_Lestari_Maju

   A scupper is meant to drain the water in small volumes, while a freeing port is used for larger volumes of water. Due to the limited amount of scuppers and the absence of a freeing port, the water on the deck wasn't able to drain quickly or effectively. The deck gradually began to collect a significant amount of water and a free surface effect ...

7. Category:Locks (water navigation) - Wikipedia

   en.wikipedia.org/wiki/Category:Locks_(water...

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