I've seen the equal transit time theory being used to explain aerodynamic lift [basis is Bernoulli's principle] several times. However recently I've been told that there is NO physical compulsion for air above an aerofoil to have to travel across it at the same time as the air below the aerofoil.
There're quite a few questions on this site that deal with the fallacy but none [as far as I've seen] specifically mention WHAT PROBLEMS WOULD ONE ENCOUNTER BY ACCEPTING THE EQUAL TRANSIT THEORY.
I mean sure, plenty of sources bring up the concept of air parcels having been proved [by computer simulation] to travel FASTER above the aerofoil than below it, but I haven't come across any specific contradiction the equal transit theory would throw up.
Though I vaguely recall coming across some article that stated the equal transit time would violate Newton's laws of motion. If this is correct then WHICH law of motion would it violate and HOW would the law be violated?
If there's anything else [apart from the laws of motion] which contradict the equal transit theory, I'd love to hear it.