長崎市網場在来の木造和船を用いた熟練者の櫓漕ぎ技量の分析と評価

概要

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In this study we desired to know the core skill of working a "Ro"-scull, before the skilled people become rare. We tried to make a quantitative evaluation of working a "Ro"-scull on a wooden boat of traditional "Wasen" type operated by a veteran seaman. We constructed the following data recording and analyzing system, to measure the skill of working a "Ro"-scull. 1) Measuring the force which is given to "Ro" and "Hayao"-rope by the testee sculler with a strain gauge. 2) Measuring the characteristics of the six free motions of the test boat caused by the testee sculler. 3) Measuring the ship's speed and location data from DGPS. From above measuring and analyzing, we could obtain the following information. In contrast with the unskilled sculler, the veteran sculler didn't give much tension to "Hayao- rope", though both gave almost the same force to "Ro" blade. A yaw presents, too, the correction of the boat's course. Since the veteran sculler took a course beforehand which turned a little into the wind with estimating the driftage, he didn't need to correct the boat' course so often not like the unskilled sculler. Throughout the analysis of data from the veteran scullers, we could present some knowledge of working a "Ro" to the beginners.
社団法人日本航海学会の論文
2004-03-25