Performance of a Titanium Supercavitating Propeller

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  • チタン製スーパーキャビテーションプロペラの試作とその性能試験
  • チタンセイ スーパーキャビテーション プロペラ ノ シサク ト ソノ セイノウ

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Abstract

A supercavitating propeller with thin blades for a small racing boat is made of pure titanium by precise molding. Open water and cavitation test results are compared with those of thick-bladed brass propeller which has the same particulars except blade thickness. Efficiency of the titanium propeller is higher about 8.5% than the brass propeller. The titanium propeller generates supercavitation more easily than the brass propeller, because of its sharp leading edges.

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