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Hi,OK
No, that explanation makes more sense than what they said at the national
park. What they said at the park was more like
"the air that goes over the top of the wing has to travel further than the air going under the bottom of the wing.
The two flows must travel across the wing in the same amount of time.Not OK
Therefore,I didn't like the word "therefore".
the top one must travel faster, and since it is travelling faster, the
pressure is lower above the wing than below. This difference in pressure results in an upward force we call "lift", which is what holds up the airplane." I'm paraphrasing from memory, but that is as close as I can remember to an exact quote.
Never mind that this "explanation" would imply that planes cannot fly upsideAn upside down asymmetric foil still sees a faster flow on the blue side than
down, which obviously they can.
That's what bugged me. Not that they invoked Bernoulli at all, but that
they used this bogus and completely unfounded assertion that the flows take equal time to get around the wing to make an argument that had patently false
implications.
Yours,
Don