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Why were wings swept back in an airplane and what advantage does it have over non swept back wings. in English please. for example it reduces drag and increases speed or something in simple form?
Wiki User
∙ 14y ago
1. swept back wings are contributes to more lateral stability, 2. swept back wings produce less lift, so in turbulent weather they are less susceptible to abrupt changes, 3. They are designed with low thickness and high fineness ratio, hence less form drag, 4. genarally they are tapered, so less induced drag, 5. Capable of flying at high mach no. as actual relative wind speed is at an angle to the wing leading surface and therefore the wind component perpendicular to the wing leading edge is less, and hence the wing senses less speed than actual. so they can fly to high mach no.'s. if a straight wing is changed into a swept back wing similar parameters of area,aspect ratio, taper,section and washout, the CL is reduced. this is due to premature flow separation from the upper surface at the wing tips. suppose sweep angle of 45 degree CL reduced 30%
Wiki User
∙ 14y ago
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