By this logic, if the performance chart for a PA28 only includes headwinds up to 15 knots then if it goes above that I can't take off or land....of course there is nothing in the "limitations" section of the POH about this
Are people really still using the little black AFMs? I thought they were legally discredited a long time ago. Though I see the text books and exams still have the "Cessna" graphs even though "real" Cessna manuals use tables.