produktuen Albisteak

Zenbat luze da ontziaren aingura-katea?

2022-11-29

Kontuan izan behar da luzeraaingura-kateaez da metrotan kalkulatu behar, nabigazioan gehien erabiltzen diren nodoetan baizik. Itsas aingura-katearen atal bakoitzaren luzera 27,5 metro ingurukoa da. Unitate hau nola sortu zen azaldu behar da.



Aingura-katearen luzera nabigazioan erabiltzen den abiadura-unitatearen altuera desberdina da. Benetan ingelesezko unitateetatik eratorria da, fathoms. Braza baten luzera 1,8288 metro ingurukoa da. Britainiar Inperioa nabigazioan indartsua zenez, gerora nazioarteko estandar bihurtu zen. Geroago, uniformeki xedatu zen aingura-katearen luzera 27,5 metrokoa zela. Benetako erabileran, aingura-katearen atal bakoitza giltza batez osatuta dago, eta atalak lotura desmuntagarrien bidez lotzen dira. Orokorrean, katearen lotura zuriz ihinztatuko da, tripulazioak jakin dezan zenbat aingura-kate jaurti diren.
Katearen azken atala gorriz ihinztatu ohi da tripulazioari katearen amaierara iritsi dela ohartarazteko. Orokorrean, aingura-katea kate-bobinan finkatzen da. Ontzia askatu baino lehen desazeleratzen amaitu ez badu, baliteke aingura-katea hautsi eta ontzitik hegan egitea. Hori ekiditeko, aingura-katearen azken zatia horiz ihinztatu ohi da, semaforoen erabileraren antzera.
According to international practice, each anchor chain of a large commercial ship usually has only 12 to 13 knots, and the length is between 330m and 357.5m. However, this is only a vague standard value. Specific to a ship, it needs to be determined according to the outfitting number of the ship. The calculation method of outfitting number is very complex, so we won't repeat it here. We just need to understand that if the outfitting number of a ship is larger, it means that the ship is more affected by wind and waves at sea, so it needs to be equipped with heavier anchors, thicker anchor chains and ropes. Generally speaking, the outfitting number of warships is higher than that of ordinary freighters, but it is not suitable to lengthen the anchor chain after reaching 13 knots. Because it will prolong the anchor receiving time, the anchor chain needs to be thickened, or even more than one anchor chain to ensure stability.
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