747FOCAL “…the stall starts at the wingtip. Not the root.”
OK in theory for a swept wing, but in practice most swept wing aircraft have small (or not so small) tweaks or fixes to ensure that the wing root stalls before the tip. E.g. wing fence, VGs, notches, LE kinks, and LE stall breakers.
A wing tip stall may give a strong pitch up and / or reduce the lateral control effectiveness, both unacceptable features for the certification of a civil aircraft. JAR/FAR 25.201, 203.
I do not know what specific aerodynamic fixes the 727 had, but those aircraft registered in the UK had a stick pusher fitted.
Rainboe, don’t forget that the tail plane is also affected by wing downwash, even to some extent, those aircraft with ‘T’ tails.
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