Thats exactly what I'm doing, same as the radio knobs. I agree it sounds high, however thats whats written on the placard next to the flaps indicator. Flaps kias 7-15 175 20 165 35 140 I can select flaps 15 below 175kias no broken flaps, if I try and select flaps 20 at 150kias I break a flap, thats 15 kias slower than the placard speed for that flap setting, it should be fine. Under 140kias is fin for flaps 35 though. Just the flaps 20 overspeed number is either wrong or is set to break at too lower speed. Alternatively I'm doing something wrong, wouldn't be the first time