Curves drawn to give the displacement of the vessel at varying drafts. Usually these curves are drawn to show the displacement in either salt or fresh water, or in both, the salt water curves being based on 35 cubic feet to a ton and fresh water curves on 36 cubic feet to a ton. Corrections are made from these basic standards for variable density of the water.
Amagophe enzelwe ukunika ushenxiso lwenqanawe kwidrafti ezahlukeneyo. La magophe aqhele ukwenzelwa ukubonisa ushenxiso kumanzi anetyuwa okanye ahlaziyekileyo, okanye kuzo zombini, amagophe amanzi anetyuwa asekwe kwiinyawo zekyubhu ezingama-35. Kwitoni namagophe amanzi ahlaziyekileyo kwiinyawo zekyubhu ezingama-36 kwitoni.