Ka'idar babban yatsa ita ce tsawon ƙwanƙolin ya kamata ya zama kusan inci 1 ga kowane 1/16 na inci ɗaya na diamita na igiya ko layin da kake amfani da shi.
Misali:
- Kwale-kwale a ƙasa da ƙafa 20: ƙwanƙolin inci 4 zuwa 6.
-Jiragen ruwa masu tsawon ƙafa 20-30: ƙwallo mai tsawon inci 8.
-Jiragen ruwa masu tsawon ƙafa 30-40: ƙwallo mai tsawon inci 10.
- Kwale-kwale sama da ƙafa 40: ƙwanƙolin inci 12 ko mafi girma.
Tabbatar cewa madaurin da ka zaɓa zai iya ɗaukar nauyin da girman jirgin ruwanka. Manyan jiragen ruwa za su ja madaurin jiragen ruwa, kuma jiragen ruwa da ke fuskantar raƙuman ruwa da iska mai ƙarfi za su buƙaci ƙarin madaurin ruwa mai ƙarfi.
Lokacin Saƙo: Janairu-10-2025