Это я вообще к тому, что в первой заметке написана лажа. При взлетном весе 260кг, площадью крыла 6,8кв/м и двигателем мощностью меньше, чем у бензопилы - эта штука никогда не летала. Максимум каталась по полю.
Скорее всего в книге неверные данные. В интернет публикации указана мощность 36л.с
точно этот ,а вчем смысл неошитого верха крыла ,оно создает дополнительно подьемную силу.
А смысл необшитого сверху крыла в том, что некоторые и сейчас думают, будто подъёмная сила создаётся от “удара” воздуха в нижнюю поверхность, как на глиссере. Я с таким мнением неоднократно встречался даже среди авиамоделистов.
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