Autorotation

Japanese: autorotation
Autorotation

…Cyclic pitch control was first used in Pescara's helicopter, where the blades, rigidly attached to the shaft, were periodically twisted. He also developed an autorotation system that controlled the pitch of the blades to allow the rotor to rotate in response to the air currents from below during a safe descent when the engines were shut down. The flapping mechanism was used in Baumhauer's first single rotor. …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…サイクリックピッチ制御を採用したのは,ペスカーラのヘリコプターで,シャフトに剛に取り付けられたブレードは周期的によじられた。また彼はエンジン停止のとき,安全に降下するため,ブレードのピッチを制御することで,落下に伴う下方からの空気流でローターを回転させるオートローテーションautorotationが利用できるようにした。 フラッピングの機構はバウムハウエルの最初の単ローターに採用されている。…

※「autorotation」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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