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It consists of a horizontal bar or bars suspended at the depth of intended decompression stops by buoys. The bars are of sufficient weight and the buoys of sufficient buoyancy that the trapeze will not easily change depth in turbulent water or if the divers experience buoyancy control problems. [37] [42] Trapezes are often used with diving shots.
The contents of the silo bag are under pressure as it is filled, with the pressure controlled by a large brake shoe pressure regulator, holding back two large winch drums on either side of the loader. Cables from the drum extend to the rear of the bag where a large mesh basket holds the rear end of the bag shut.
2. (Usually in the plural: "bilges") The compartment at the bottom of the hull of a ship or boat where water collects and must be pumped out of the vessel; the space between the bottom hull planking and the ceiling of the hold. [2] 3. To damage the hull in the area of the bilge, usually by grounding or hitting an obstruction. 4.
Shot, line and reel on dive boat. The shot is deployed, generally from a boat, after the dive site is located using position fixing such as GPS and an echo sounder. Shots are more difficult to use in strong currents. The weight may drag along the seabed especially if the divers pull on the line as they descend.
On a boat or ship, the primary or upper deck is the horizontal structure that forms the "roof" of the hull, strengthening it and serving as the primary working surface. Vessels often have more than one level both within the hull and in the superstructure above the primary deck, similar to the floors of a multi-storey building, that are also ...
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