-IN NORMAL LAW
Valpha max = the top of the red stripe on speed tape, and it corresponds to the maximum pitch attainable in normal law with full back stick. It is therefore target speed during GPWS Pull-up maneuver.
Green dot speed = Best L/D ratio (ie BEST ANGLE of Climb Vx). Shows only in Clean Config.
Both are wrong
V alpha max is the speed corresponding the highest permissible angle of attack. nothing to do with a pitch.
otherwise, GD is the best L/D ratio in
one engine out condition