Originally Posted by HarryMann
I think you might find a common definition of AoA is freestream vector Vs Wing Zero Lift Angle, not fuselage axis datum
or even, Vs Wing Chordline Datum
Not for the A330 or any swept-wing transport I know. See for example the Perpignan accident report for a definition of AoA and vane angle, Boeing's Performance Methods, or Airbus' 'Getting to grips'. Must be light aircraft thing.
The zero-lift AoA varies with flap and slat setting, spoilers, and cg. For the A330 in clean configuration it is about -2 degrees. For the airplane, 'trimmed' lift involves the wing, horizontal tail and fuselage contributions to lift and pitching moment.