Anplis ancrage bato a byen nan anchorage a, lank bato lapèch alyaj aliminyòm lan kapab tou fè fonksyon sa yo:
1. Ijans frenaj
Se jete lank la itilize pou kenbe pouse a pi devan nan bato a. Souvan lè machin nan kondwi an bak, li konplete pa jete premye lank lan pou fè bato a sispann avanse nan yon ijans.
2. Kontwole mouvman orizontal
Lè bato a apwoche waf la, li souvan itilize jete jete lank la pou kontwole Yuepengbai a deplase lateralman nan waf la, epi jete jete lank la desann kontwole vitès la pi devan.
3. Ede W-vire
U-turn in narrow waters, such as the depth of water and the bottom quality of the river bed suitable for anchoring, often can be used to lead the operation method of anchoring to make the ship turn around smoothly.
4. Siprime devyasyon
When the ship needs to retreat for a long distance, in order to ensure that the ship can move in a straight line, the bottom quality of the river bed allows it. The anchor chain can be dropped to the end and the anchor chain can be stopped to form a towing anchor and achieve the purpose of restraining the deflection of the ship's breast.
5. Ede nan jwenn koupe zen an
After the ship ran aground, a small boat can often be used to transport the anchor to a distance (upwind, current direction) and drop it, and then twist the anchor rope to make the ship go shallow.