和船人力推進における熟練者の櫓漕ぎ技量評価-III : 木造和船推進抵抗と被験者の櫓漕ぎ推進効率に関する個人評価

概要

論文の詳細を見る
In this paper, we report that we made analyses of propelling efficiency in addition to ten times tests, including those taken by two veteran scullers, of working a Ro fitted in a wooden "Wasen", a traditional Japanese boat, and obtained following results; (1) We reconfirmed that both veteran scullers applied less load to Hayao and the fluctuation margin of average boat speed was small when they sculled a boat. Meanwhile inexperienced scullers gave much tension to Hayao in comparison with veteran scullers and also the fluctuation margin of average boat speed was large. When a large figure of average Ro-blade force didn't lead to an increase of boat's speed, there were large variation in rolling and pitching of the boat, and consequently the loss arose in propelling power. (2) From the total resistance based on the results of resistance test besides average Ro-blade force, the propelling efficiency was 13 to 23% in the veteran scullers.
社団法人日本航海学会の論文
2004-09-25