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A delayed surface marker buoy (DSMB), decompression buoy, or deco buoy is an inflatable buoy which can be deployed while the diver is submerged and generally only towards the end of the dive. The buoy marks the diver's position underwater so the dive boat crew can locate the diver even though the diver may have drifted some distance from the ...
A surface marker buoy can be used to monitor the position of the diver; Through-water systems if voice communications required. Diver ascends at shotline or decompression buoy while vessel keeps clear; Vessel only approaches diver on surface when visible to skipper; Engines disengaged when diver in water alongside; Bells and stages: Crushing ...
A diver getting ready to dive in front of an alpha flag. As a code signal the International maritime signal flag Alpha (or "Alfa", signifying the letter "A") has the meaning of "I have a diver down; keep well clear at slow speed", [1] used to indicate that the vessel has limited maneuverability, and the presence of a diver in the water around the boat.
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A diver down flag, or scuba flag, is a flag used on the water to indicate that there is a diver below. Two styles of flag are in use. Two styles of flag are in use. Internationally, the code flag "alpha", which has a white hoist and blue swallowtail fly, is used to signal that the vessel has a diver down and other vessels should keep well clear ...
There are two versions: the international code letter flag 'Alpha', , and the red flag with white diagonal bar, . dive ladder diver ladder. See: Human factors in diving equipment design#Diver ladders. A ladder suitable for divers dressed for the specific dive to climb up and down between the surface deployment area and the water. Dive Leader
“The water is dark, it is murky, and that is a very tough condition for them to dive in. If you can imagine, the river is a large black spot at night with no lights on it, except for a few buoy ...
Surface marker buoy to track a group of divers. Drift diving is a type of scuba diving where a diver is transported by water movement caused by the tide, [1] an ocean current or in a river. The choice whether to drift dive depends on the purpose of the dive and whether there is an option.