Wing thickness ratio

The straight line connecting the leading edge and the trailing edge of an airfoil is called the wing chord, and the curved line connecting the leading edge and the trailing edge through the center of the thickness is called the centerline. The ratio of the maximum thickness of the airfoil to the chord length (expressed as a percentage) is called the wing thickness ratio, and the ratio of the distance between the centerline and the chord to the chord length (expressed as a percentage) is called the camber (the distance itself is sometimes called camber).
[Names of wing angles]
During flight, the wing chord is tilted moderately relative to the direction of flight to adjust lift, and this angle is called the angle of attack (Figure 10).

*Some of the terminology that refers to "wing thickness ratio" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…翼型の前縁と後縁を結ぶ直線を翼弦wing chord，厚さの中央を通って前縁と後縁を結ぶ曲線を中心線という。翼型の最大厚さの翼弦長に対する比(％で表す)を翼厚比wing thickness ratio，また中心線と翼弦との間隔の翼弦長に対する比(％で表す)をキャンバーcamberという(間隔そのものをキャンバーということもある)。
［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)。…

※「wing thickness ratio」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