Originally Posted by
Vessbot
If groundspeed is only positive, then airspeed is always positive, and therefore airplane should fly just the same in a tailslide as they do going forward. True or untrue?
Well, AOA will be cracking on for 180 degrees. That might have a small part to play.....
+ve airspeed and Alpha(plus Beta for 3d) gives us a system that covers all the bases for where the air is coming from.