The heel angle is the angle in degrees that the waterline assumes with respect to the baseline of the boat. Upright, the boat has a heel angle of zero. For the calculations, the boat remains upright in the coordinate system and all calculations are done with a heeled waterline. That way, all of the numbers relate to the constant, upright coordinate system.
Ikona elele kwicla elihlayo yikona ekwiqondo apho imigca yamanzi ahamba khona kwimigca esisiseko sesikhephe. Ukuma, isikhephe sinekona eleleyo engena manani. Ngokubhekiselele kubalo isikhephe sihlala sime nqo ngedlela esisebenza ngaso kwaye yonke into edibene nokubalwa yenziwa ngemigca yamanzi ebukekela. Ngalo ndlela, wonke amanani aye angqamane ngendlela esebenza eyiyo ngokuthe nqo.