Как и зачем модифицируются профили? В частности: на Пульсаре применен AG25mod. В этом случае в чем отличие от AG25? На AVA применены три профиля: AG24, AG25, AG26. А зачем, в чем смысл?
На крыльях с мягкой обшивкой модифицируют профиль для компенсации провисания обшивки между нервюрами после натяжения. А вообще разные профили используют для создания аэродинамической крутки крыла( для получения заданного распределения подъемной силы по размаху крыла, которое влияет на многие аэродинамические характеристики модели). Так вкратце написал.
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