[xone]

And primarily reduce wingtip vortices and associated drag.

[gymbeau]

“And primarily reduce wingtip vortices”

Efficiency notwithstanding, I miss wingtip vortices. They’re quite cool, from the ground at least. My wife and I used to walk in a park over which planes landed and the vortices not only looked really cool, we’d get this “whoosh whoosh” coming down at us that was fantastic.

I miss that.