THE CONCEPT OF THE COEFFICIENT OF ELLIPTIC TRAPEZOID WING AND THE METHOD OF ITS ASSESSMENT by Александр Васильевич Лось, Виктор Иванович Рябков

“…When using such design solutions, it is possible to increase the value Ken, e, and the numerical evaluation models depend, among other things, on: n – the number of trapeziums that form the wing half-sizes; zn i- the coordinates of the wing kinks in its span; ηn – total narrowing of the wing, formed by n trapeziums. e - the relative angles of the geometric twist of the local chords of the trapezoids forming the plan of the modified wing. …”
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Low speed aerodynamic characteristics of non-slender delta wing at low angles of attack by Mohamed A. Mohamed, Imran Afgan, Mohamed Hefny Salim, Ibrahim K. Mohamed

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