horizontal rudder

Japanese: horizontal rudder(英語表記)horizontalrudder
horizontal rudder


[Ship's rudder]
For ordinary ships that navigate on the water, the most common means of directional control is a rudder attached to the stern, except for special propulsors (such as Voith-Schuider propellers and oscillating screw propellers) that change the direction of thrust to give the ship a turning force, and side thrusters that generate sideways thrust. This is a rudder that rotates around a vertical axis, but for submersibles that navigate underwater, a horizontal rudder (a rudder that rotates around a horizontal axis) is also required to control the depth of the ship, such as when diving or surfacing. The effect of a rudder on an ordinary surface ship is large when the screw propeller rotates forward and the ship's forward speed is above a certain level, but its effect is small when the ship is stopped or moving forward at a low speed. …

*Some of the terminology that mentions "horizontal rudder" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:


【船の舵】
 水上を航行する通常の船では,発生する推力の方向を変えて船に回頭力を与える特殊な推進器(フォイトシュイダープロペラ,首振り式スクリュープロペラなど)や横向きの推力を発生するサイドスラスターを除けば,一般的な方位制御手段は船尾に取り付けられた舵である。これは,舵板が鉛直軸のまわりに回転するものであるが,水中を航行する潜水船の場合には,このほかに,潜水および浮上など船の深度を制御するために水平舵horizontal rudder(舵板が水平軸のまわりに回転する)が必要である。通常の水上船での舵の効果は,スクリュープロペラが正転し船の前進速度がある程度以上のとき大きく,停止時または低速前進時にはその効果は小さい。…

※「horizontal rudder」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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