[dragnet2]

I was confident it wasn’t related and to be sure I looked it up prior to commenting. Btw, I agree and I’m confident any plant matter that rotates or slows itself as it falls probably has been studied at length.

[Kartographer]

"I’m confident any plant matter that rotates or slows itself as it falls probably has been studied at length."
That being the case one would think that by study such a natural phenomenon that they would be a great deal of practical data with would be both apical and relevant to the development of a vehicle using the same basic principals. thank you for the information