... Hydrofoils are divided into surface-piercing hydrofoils (also called area-controlled) and fully submerged hydrofoils (also called angle-of-attack controlled) types according to the shape of the hydrofoil (Figure). Surface-piercing hydrofoils have V- or W-shaped wings fixed to the hull, and the wing parts that generate lift penetrate the water surface and are above and below the water surface. In the surface-piercing hydrofoil state, the wing area decreases as the hull rises, allowing the vessel to automatically maintain a constant lift while sailing. In addition, even if the hull tilts to the side, the increase or decrease in lift due to the difference in wing area between the left and right sides automatically restores the vessel to its original position. ... *Some of the terminology that refers to "surface piercing hydrofoil" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… 水中翼船の型式は,水中翼の形状により水面貫通翼型(面積制御型ともいう)と全没翼型(迎え角制御型ともいう)に分けられる(図)。水面貫通翼型の水中翼船surface piercing hydrofoilは,船体に固定されたV型,あるいはW型の翼をもち,揚力を発生する翼部分が水面を貫通して水面の上下にあるため,翼走状態では,船体が上昇すれば翼面積が減少し,自動的に一定の揚力を保ちながら航走できる点に特徴がある。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。… ※「surface piercing 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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