Ice horn - Ice horn

Japanese: アイスホーン - あいすほーん
Ice horn - Ice horn

…Some ships are equipped with a bow propeller to improve the icebreaking effect by pushing the ice crushed near the bow backward. An ice horn is installed on the top of the rudder at the stern to protect the top of the rudder when astern, and many ships use a nozzle propeller with a cylindrical structure around the propeller to prevent ice from entering the propeller. The shape of the main hull is often round with inclined sides to effectively push the ice crushed at the bow outwards to reduce resistance and to mitigate the force of ice when trapped in an ice-filled area (called a besset). …

*Some of the terminology that refers to "ice horn" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…船首付近で砕かれた氷を,後方に流して砕氷効果を高めるために船首プロペラを装備する例もある。船尾の舵の上部には,後進時の舵上面の保護のためアイスホーンが設けられ,また,プロペラへの氷の流入を防ぐため,プロペラ周囲に円筒形の構造物を配置したノズルプロペラを採用している例が多い。主船体の形状は,船首で砕かれた氷をうまく玄側へ押し出して抵抗を減らし,また氷結域で閉じ込められたとき(ビセットという)に氷から受ける力を緩和するため,丸形の断面で傾斜した船側をもつものが多い。…

※「アイスホーン」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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