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Does How does wing flex increase the lift coefficientreduce wave drag?

If I'm reading this post right: What is the effect of airfoil thickness on aerodynamic lift?

  • Airfoil thickness increases the lift coefficient.

And from here: What are the effects of the Boeing 787's very flexible wings?

  • Wing flex reduces wave drag.

I'm wondering about the how. My theory is that the air sees a thicker airfoil in a flexed wing, without actually building one. Is that assumption correct? Or is it related to a wingletthe end-plate effect?

enter image description here
Front view of a flexed wing. Orange indicates that perceived increase in airfoil thickness.

Does wing flex increase the lift coefficient?

If I'm reading this post right: What is the effect of airfoil thickness on aerodynamic lift?

  • Airfoil thickness increases the lift coefficient.

And from here: What are the effects of the Boeing 787's very flexible wings?

  • Wing flex reduces wave drag.

I'm wondering about the how. My theory is that the air sees a thicker airfoil in a flexed wing, without actually building one. Is that assumption correct? Or is it related to a winglet effect?

enter image description here
Front view of a flexed wing. Orange indicates that perceived increase in airfoil thickness.

How does wing flex reduce wave drag?

If I'm reading this post right: What is the effect of airfoil thickness on aerodynamic lift?

  • Airfoil thickness increases the lift coefficient.

And from here: What are the effects of the Boeing 787's very flexible wings?

  • Wing flex reduces wave drag.

I'm wondering about the how. My theory is that the air sees a thicker airfoil in a flexed wing, without actually building one. Is that assumption correct? Or is it related to the end-plate effect?

enter image description here
Front view of a flexed wing. Orange indicates that perceived increase in airfoil thickness.

1
source | link

Does wing flex increase the lift coefficient?

If I'm reading this post right: What is the effect of airfoil thickness on aerodynamic lift?

  • Airfoil thickness increases the lift coefficient.

And from here: What are the effects of the Boeing 787's very flexible wings?

  • Wing flex reduces wave drag.

I'm wondering about the how. My theory is that the air sees a thicker airfoil in a flexed wing, without actually building one. Is that assumption correct? Or is it related to a winglet effect?

enter image description here
Front view of a flexed wing. Orange indicates that perceived increase in airfoil thickness.