Originally Posted by
dirkdj
I have trained spiral dive recovery as taught by the American Bonanza Society. The Bonanza has a natural tendency to end up in a spiral dive if left to itself. During BPPP training it was stressed that once the wings are level, you most probably will have to PUSH on the yoke since you are so far above trim speed. The aircraft will pitch up by itself and if left unchecked could actually do a nice 4G pull into the first half of a loop. A slow draggy trainer may be more forgiving but on a clean retractable the speed builds quickly.
This.
In any spiral dive I've been in, where the airspeed is well above the trim speed (and it usually is), there is a strong pitch-up tendency as the wings are approaching level. If the airspeed is redlined, or approaching that point, I would see it as critical to not over- G the airframe.
Not experienced this in a Bonanza, but certainly have in a range of Cherokees and Cessnas, an Airtourer, a Beagle, and a baby Bonanza (Sundowner.)