1972 年 48 巻 p. 65-68
This is the study on the safety of the salmon fishing boat in a seaway and fishing field. Concerning on the 7 fishing boat which were built between from 1963 to 1968 by the different shipyard, the heeling and rolling tests were performed by the author. On the other hand, the 2 meter length fishing boat model ship were used for the assumption of the various coefficients for the given condition of the fishing boat. Based on those data, the empirical formula were deduced and discussed. On these results, the author discussed on the statbility of the 96 ton type salmon fishing boat. Then, by the use of non-lenear equation of rolling motion of this type of ship, the author discussed on the solution of this equation.