angle of incidence

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[Names of wing angles]
During flight, the wing chord is tilted moderately against the direction of flight to adjust lift, and this angle is called the angle of attack (Figure 10). On the other hand, the angle that the wing makes with the fuselage reference line is called the incidence angle. Since the fuselage is not necessarily parallel to the direction of flight during flight, the incidence angle and the angle of attack are usually different.

*Some of the terms used in this article that refer to "angle of incidence" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

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［翼の角度の名称］
　飛行中は翼弦を飛行方向に対し適度に傾けて揚力を調節するが，この角度を迎え角angle of attackという(図10)。一方，翼が胴体基準線となす角を取付け角angle of incidenceという。飛行中胴体は飛行方向に平行とは限らないので，取付け角と迎え角とはふつう異なる。…

※「angle of incidence」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