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Temporary markers in Danish seine fishing to mark net anchor positions; Temporary markers set by danlayers during minesweeping operations to indicate the boundaries of swept paths, swept areas, known hazards, and other locations or reference points; Temporary markers for rescue operations; Spar buoys are tall, thin buoys that float upright, e.g ...
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 ...
An anchor is a device, ... for example in the case of lightvessels or channel marker buoys. The anchor needs to hold the vessel in all weathers, ...
The basic rode system is a line, cable, or chain several times longer than the depth of the water running from the anchor to the mooring buoy, the longer the rode is the shallower the angle of force on the anchor (it has more scope). A shallower scope means more of the force is pulling horizontally so that ploughing into the substrate adds ...
A cardinal mark is a sea mark (a buoy or other floating or fixed structure) commonly used in maritime pilotage to indicate the position of a hazard and the direction of safe water. Cardinal marks indicate the direction of safety as a cardinal ( compass ) direction ( north , east , south or west ) relative to the mark.
Just like traffic lights and signs help drivers on the road, boaters have buoys and signs to guide them to and from shore safely.