To anchor, you drop your anchor at the bottom. But what guarantee do you have to get it back when you leave? Depending on the nature of the bottom, the anchor may very well get stuck in a rock or worse, under a cable, impossible to sail up..
To avoid finding yourself in this bad position, you must install a rope. A rope is a rope attached to the anchor's diamond and held on the surface by a buoy. If the anchor is blocked at the bottom, it is raised using the rope whose function is to tip the anchor and release it. In addition the rope, located at the vertical of the anchor makes it possible to signal it to the other boats. It is very practical to know the length of chain wet by the neighbor and to visualize its evitage.
The anchor is stuck under a rock...
Just pull on the rope to unblock it.
So the orin is great! Why deprive yourself?
Anchoring with a rope complicates the anchoring manoeuvre a little more since you have to let the rope and its buoy slip along with the anchor. The biggest challenge is managing water depth. Indeed, a rope must be vertical to the anchor and therefore have a rope calculated according to the depth.
Too short, the buoy will be under water and will tend to"float" the anchor by hindering its good grip. Too long and the rope may get caught in the propellers of boats passing around. Ideally the rope should make exactly the depth.
In waters with very low tides (the Mediterranean for example), you can adjust the length of the rope before anchoring. But if you find yourself in tidal waters, you must take into account the tidal range and calculate the length of the rope according to the high tide... Not easy-easy!
To solve this delicate problem, you can also use the Swi-Tec buoy (available on swi-tec.fr). This one has a reel inside. Thus the buoy always remains above the anchor and follows the water level variations. The quality of construction with an all stainless steel mechanism ensures its proper functioning over time. This model has already been on the market for 20 years and has no defects.
The buoy is equipped with a luminous reflector to clearly visualize it with a flashlight, but also with a small pictogram indicating"anchoring prohibited" (a crossed anchor). Indeed, it is certainly not necessary that an indelicate yachtsman comes to moor himself on a buoy of orin. This would have the consequence of lifting the anchor by its diamond and making everyone skid..