Hi BOAC,
I now believe that the commonality of large spoiler deflections with aileron means we may have to re-write the book on the effect of roll control at the stall..
I don't think so.
On page 96:
At 2.12.45. "The copilot sidestick is to the left in stop position. The roll angle changes from 12° right to 41° right in 3 seconds then fluctuates between about 20° and 40° right (period of 10 seconds)
"Hey you’re in … get the wings horizontal Get the wings horizontal"
"That’s what I’m trying to do"
"Get the wings horizontal"
At 2.12.59:
"I’m at the limit … with the roll"
"The rudder bar"
It strikes me that the roll control worked the wrong way during the stall (which agrees with current wisdom). The Captain ordered the use of the rudder bar, which then picked up the wing.
I agree with Linktrained and think it was simply the massive side slip which they had with 40 degs of bank (due no radius of turn) and the dihedral effect which caused it to stabilise.