Midget boy - you may well find the wings fall off.. Not knowing where the structure really will fail, and using the placarded limits: the limits are 2G flaps out, 3.8 clean, so taking a level turn flaps limit you to 60deg bank. I don't know exactly what point the wings would really fall off, but...
Pugilistic animalus I'm convinced! the maths are in the first link BOAC posted.
And no, I'm not going to go and try it
Thanks for all the info.