Originally Posted by
BoilerUP
I'm gonna say flaps 20°.
If they had continued the takeoff with Flaps 8 set but Flaps 20's lower v-speeds bugged, they would have likely experienced a sluggish rotation (due to it being a lower speed than Flaps 8 calls for) but the airplane would have flown just fine.
I can attest to that fact...TOGA thrust helps there, however