Hmmm... Might this work on the back of a car..?

[Logic]

Dynamic morphing Airfoil - gliding flight test:

https://www.youtube.com/watch?v=VHdwjqHAemY

At around 1.31 you can see the killer fake feathers gnashing at an imaginary pedestrian of superhuman speed!

https://www.youtube.com/watch?v=N4zfE5C7CYw&t=327s

This also caught my eye as I recall boat-tailers here mentioning instability:
"...The culmination of these effects produces a pressure distribution that increases the longitudinal stability of the airfoil..."
https://www.bamlab.princeton.edu/_fi...fd70b218cf.pdf

[Logic]

Originally Posted by freebeard

I like the cold plasma actuators. They could have over-the-air updates where feathers can't. Today, it's mainly because I'm listening to Malcolm Bendall and Jordan Collin (Alchemical Science) on Plasmoids from Space.

Malcolm Bendall and Jordan Collin - Thunderstorm Generator Update

I like them both.
'Feathers' look to be fully self adjusting/optimizing once people like those above get their Flexural properties or 'springiness' and size/shape dialed in.

But best of all: No input power required..!

[Logic]

This video shows the 'feathers' in action very well:

https://www.youtube.com/watch?v=bhSytBec-dM