# ppt 報告內容 ### Airfoil selection 我們設計的飛機二維升力係數=0.917 正好在巡航攻角在0到5度之間 此翼型的最大升阻比在我們的巡航攻角範圍內,可以帶給我們較佳的飛行效率 執行救災任務時需保持機艙內平穩此翼型在巡航攻角區間內力矩係數保持在低點,在巡航時能保持平穩
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