Question
Data for an airplane are given as follows: weight W = 30kN, thrust available at sea-level T0 = 4000 N, wing planform area S = 30 m2, maximum lift coefficient CL max = 1.4, and drag coefficient CD = 0.015 + 0.024 C2L. Assume air density at sea-level P∞ = 1.22 kg/ m3. Minimum and maximum speeds of the airplane in level flight condition at sea-level in m/s are
respectively
respectively
Answer: Option C
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