Originally Posted by ptarmigan

Q-alpha warning starts quite a bit earlier as it is looking at both q and alpha, independently. The actual margin prior to stall for just an alpha based system is quite low.

Essentially the q-alpha would alert quite a bit earlier. As I recall from his SETP presentation, the system would alert significantly higher than a system based solely on alpha, I think the numbers were something like 30% over Vs as opposed to around 9% for current systems.