fully submerged hydrofoil

Japanese: fully submerged hydrofoil(英語表記)fullysubmergedhydrofoil
fully submerged hydrofoil

…Even if the ship tilts to the side, the difference in lift caused by the difference in wing area between the left and right sides will automatically restore the ship to its original position. On the other hand, in a fully submerged hydrofoil, the wings are always below the water surface, so an automatic stabilizing device is required to mechanically control the wing's angle of attack and adjust the lift. However, by constantly detecting the ship's attitude and floating height and performing advanced angle of attack control, it is possible to reduce rocking, resulting in a comfortable ride. In addition, the wing area can be made smaller, which reduces resistance and allows for faster travel than a water-penetrating wing type. …

*Some of the terminology that refers to "fully submerged hydrofoil" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…また,船体が横傾斜した場合でも,左右の翼面積の違いによる揚力の増減により,自動的に姿勢を戻す復原作用がある。一方,全没翼型水中翼船fully submerged hydrofoilでは,翼はつねに水面下にあるため,機械的に翼の迎え角を制御し,揚力を調節する自動安定装置が必要となるが,つねに船体の姿勢や浮上高さを検知し,高度な迎え角制御を行うことによって揺れを少なくすることができ,乗りごこちに優れる。また,翼面積を小さくできるため,抵抗が減少し,水面貫通翼型に比べて,より高速走行が可能となる。…

※「fully submerged hydrofoil」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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