Никого не хочу обидеть, но… Попробуйте измерить Ваш первый попавшийся пропеллер… По шагам… Гарантирую - абалдеете!
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да даже нечем измерить, нет транспортира в хозяйстве
транспортир и не нужен…высчитать диаметры окружностей через 20мм радиуса, на ватмане расчертить шаг,хоть в дюймах, хоть в см, для каждого радиуса и сделать простейший шагомер…в старых книжках такой печатался
Возьмите в руки винт для F3P ( брендовый) покрутите -повертите , потом будет понятно что и зачем. А по всем вышеописанным способам ,они только для … .!
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