A Study on the Comparison of Resistance Performance for Shape of Fin Keel of Sailing Yacht

Choo, Kyung-Hoon; Sim, Sang-Mok; Park, Choung-Kwan; Jin, Song-Han; Kwan, Seong-Hoon

Journal of Navigation and Port Research 2006;30(5):375-379.
Published online June 30, 2006.

세일링요트 핀킬 형상별 저항특성 비교연구

추경훈, 심상목, 박충환, 진송한, 권성훈

A Study on the Comparison of Resistance Performance for Shape of Fin Keel of Sailing Yacht

Kyung-Hoon Choo, Sang-Mok Sim, Choung-Kwan Park, Song-Han Jin, Seong-Hoon Kwan

Abstract

The keel attached on bottom of hull part prevents yacht from flowing sideway by sailing posture. The keel remove a heel moment and make the force of stability. The selection of suitable keel is important because it has an influence on the safety. Also the appendage attached on bottom of keel part lower ballast weight center and have influence on hull stability. The optimum shape about the keel is very important. So this study has compared with characteristics of resistance depending on the shape of the lower part of fin keel in the same surface of water submersion, we have attached three different types of models of lower part of fin keels to the model ships using circulating water channel and analyzed resistance characteristics per shape to arrive at the optimum shape of reduction of resistance.

Key Words: Sailing yacht;Model Test;Resistance Performance;Lifting fin keel;Appendage