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Praise Helix
(lemmy.world)
know your meme, classic I'm told.
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this post was submitted on 27 May 2026
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I think there is a other layer to this. The image in question (I think) is showing how a birdoid body in flight avoids adverse yaw when banking for turns. That is done by managing the tip vortices in such a way to create a proverse yaw force. Quite literally, by befriending the spirals.
https://en.wikipedia.org/wiki/Adverse_yaw
https://en.wikipedia.org/wiki/Prandtl-D
Hmm, that's interesting, I'm thinking like a pilot here but tip vortices increase in magnitude as AoA increasess, adding to adverse yaw of ailerons. I figured birds handled yaw control through wing sweep, kind of like how a weight shift trike does.