And just for good measure, this one
When the lift coefficient Cl of a negatively cambered aerofoil section is zero, the pitching moment is:
maximum.
nose down (negative).
nose up (positive).
zero.
I went with zero, given answer is nose up. My thinking is that if Cl is 0, then following the lift formula IAS2*S*Cl, will give an answer of 0 for lift, so how can a moment be generated when there is 0 lift?
