Pilots-lounge discussions of airplane crosswind capabilities can set brother against brother or mother against son; but, hey, at least they're at the airport. Reestablish peace by completing this statement: For certification purposes, an airplane must be satisfactorily controllable with no exceptional degree of pilot skill in 90-degree crosswinds up to a velocity equal to:


17 knots


15 knots


0.7 VSO


0.2 VSO

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