“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.”
“You’re also completely wrong when you say that Wingtips have nothing to do with turbulence.”
I meant to say instead:
“You’re also completely wrong when you say that Winglets have nothing to do with turbulence.”
Wow, I’m getting a real education here! I’ve spent my whole aviation career teaching students about drag,coefficients of lift and I never knew that all this time it was that darn turbulence out there slowing the plane.
Since I have obviously met someone who knows more about aviation than I do, could you elaborate on your comments in post #26 about how winglets affect noise and obstacle clearance?