Alyuminiy qotishma baliq ovlash qayig'ining langari kemani mahkam bog'lab qo'yishdan tashqari, quyidagi funktsiyalarni ham bajarishi mumkin:
1. Favqulodda tormozlash
Langar kemaning oldinga siljishini cheklash uchun ishlatiladi. Ko'pincha transport vositasi orqaga surilganda, favqulodda vaziyatda kemaning oldinga siljishini to'xtatish uchun birinchi langarni tushirish bilan to'ldiriladi.
2. Gorizontal harakatni boshqarish
Kema dockga yaqinlashganda, ko'pincha Yuepengbai dockga lateral harakat qilish uchun langarni tashlash va oldinga tezlikni boshqarish uchun langarni pastga tashlash uchun ishlatiladi.
3. Burilishga yordam bering
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. Burilishni bostirish
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. Qo'ldan tushishga yordam bering
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.