Hi gums,
Quote from gums #829:
"In wings level flight, AoA can be derived from the pitch and the inertial velocity vector regardless of the air data probes/cones. The Sluf and Viper HUD had a "zero sight line" cross, and usually the flight path marker ( FPM) was below it ( negative gees was something else, heh heh). That was your AoA in wings level flight."
Three years ago (before you joined this discussion?), some of the "gang" chewed over this subject, and we gradually realised that - for various reasons - it wasn't as simple as we had hoped...
http://www.pprune.org/tech-log/39510...ml#post5575204