If you would like to learn more about how winglets work by reducing wingtip turbulence, check out this article from Popular Science I found.
“They’re called winglets, AND THEIR PURPOSE IS TO REDUCE TURBULENCE AT THE TIPS OF AN AIRPLANE’S WINGS. The air pressure on the bottom of a wing is greater than the pressure on top, so when air flowing across the two surfaces meets at the wing tip, it forms a vortex-a miniature tornado. The vortices created by a large airplane are strong enough to flip a smaller plane that is following too closely.”
http://www.popsci.com/military-aviation-space/article/2002-02/fyi-what-are-winglets
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.