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It's interesting. I presume the blister on the leading edge is to reduce leeward turbulence. But why the step above and below it?
Oh no, Pelican Parts thread, there goes the rest of my afternoon.
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
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