Mr. Athos, I was trying to be nice.
Earlier you posted winglets create turbulence. Now you quote Popular Science saying they reduce turbulence.
You look stuff up on the internet. I do this for a living.
My screen name represents Certificated Flight Instructor, Instrument Instructor, Multiengine Intructor, Airline Transport Pilot, Type rating Boeing 737. I am type rated in several other jets.
I train professional pilots. I have advanced degrees in aeronautical science.
You don’t know what your talking about. Quit looking up stuff on the internet that contradicts itself and maybe listen to those of us who have a lifetime of experience on the subject.
“I train professional pilots. I have advanced degrees in aeronautical science.”
That’s cool.
You’re also completely wrong when you say that Wingtips have nothing to do with turbulence.
Moving the turbulence from wingtip vortices away from the wing where they reduce lift is the key to how wingtips work.
“Earlier you posted winglets create turbulence. “
That’s not true.
I didn’t say winglets create turbulence, I cited a passage that said WINGTIP VORTICES cause turbulence. That would include wings that do not have winglets at all:
“Wingtip vortices create turbulence, originating at the leading edge of the wingtip and propagating backwards and inboard. This turbulence ‘delaminates’ the airflow over a small triangular section of the outboard wing, which destroys lift in that area. The fence/winglet drives the area where the vortex forms upward away from the wing surface, since the center of the resulting vortex is now at the tip of the winglet.”