高速艇プロペラの翼数変更実艇試験

概要

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A high speed craft is equipped with tree (3) blades propellers in general, however, recently five (5) blades propellrs may be available with enlarged diameter of propellers, and increased ratio of reduction gears for a large high speed passenger craft. Consequently, study and tests for comparion between thee (3) and five (5) blades of propellers were planned and carried out to confirm availability of five blades propellers. In first stage, both type of propellers with skew were designed theoretically and in second stage, open and cavitation tests were carried out with model propellers in our experimental tank. In final stage, comparison tests were carried out in sea trials of actual ship "48M type large high speed passenger craft" under building changing thee (3) blades propellers for five (5) ones. In results of the sea trials, the availability of skewed five (5) blades propellers was confirmed as the new type propellers for high speed crafts.
社団法人日本船舶海洋工学会の論文
1985-03-22