Originally Posted by
safetypee
Ken, the situation may not be quite so absolute as you suggest. A stalled wing does not mean no lift, just insufficient lift for the conditions; see Cl vs AoA charts.
A deep stall requires a high AOA. So high that the tail is blanked by the turbulent wing flow. At that high of an AOA the wing is fully stalled and there is effectively no roll control. It is why during flight testing of deep stall conditions that the test aircraft is fitted with a drogue parachute to break the stall condition. You can't fly out of it. The roll and pitch maneuver is only effective to PREVENT a normal stall from progressing to a deep stall condition. If you've stalled, then do not quickly apply the correct procedures to prevent it from progressing to a deep stall, and find yourself in a deep stall, kiss your butt good bye.
During stall testing of the C-17 it was equipped with a recovery parachute and an emergency escape trunk. Even the recovery parachute might fail to break the stall in which case the pilots would use the emergency escape trunk to exit the aircraft and parachute to safety.