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.
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.
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.