RE: HN39 (#4119)
With cruise AoA typically 2 degrees, wouldn't that leave 2.2 degrees?
I found the 3.5 deg cruise pitch attitude in the "Unreliable Airspeed Indication / ADR check proc." (FCOM 3.02.34 P21). I acknowledge it is for an IAS of 260 kt. Nominal IAS at M 0.80 / FL 350 is 273 kt so the pitch attitude at M 0.80 may be perhaps a half deg lower. Remember however that Air Caraïbe started and ended their 1 min and 26 sec airspeed rollback at exactly M 0.80. One can think that their airspeed did not vary much in between and still they had two stall warnings.
Regards,
DJ.