Linked Questions

64 votes
11 answers
50k views

How do wings generate lift?

Just the basic question that every aviation enthusiast must be curious about: exactly how does a wing generate lift?
Jae Carr's user avatar
  • 24.1k
50 votes
8 answers
15k views

How complete is our understanding of lift?

I'm currently studying for my PPL and one of the accepted textbooks contains the following disclaimer at the end of the Principles of Flight section on lift: It is important to note that the forgoing ...
Dan's user avatar
  • 9,288
36 votes
3 answers
13k views

How does an aircraft form wake turbulence?

This question discusses how wake turbulence can affect planes flying in formation. It got me wondering, how do aircraft (the wings in particular) form wake turbulence to begin with? It can't be as ...
Jae Carr's user avatar
  • 24.1k
31 votes
2 answers
21k views

What is vortex lift?

In a recent question I asked, I was given an answer by Peter Kämpf and he described something about lift being created by a vortex used on delta wings and the Bird of Prey wing. How exactly does ...
Ethan's user avatar
  • 9,329
10 votes
3 answers
18k views

What is the lift force per unit span?

I got Aircraft Design: A conceptual approach for Christmas, and I'm having a hard time with lift coefficients because I honestly have no idea what "lift force per unit span" means, so can someone ...
ptgflyer's user avatar
  • 2,146
8 votes
3 answers
5k views

How is drag created from wingtip vortices?

What is the reason for the drag due to wingtip vortices? This question is about (general) performance, but doesn't answer the drag aspect.
user avatar
6 votes
2 answers
4k views

Why is induced drag less on a high span wing?

I have a basic question and sorry if it is a well known fact. I understand that the induced drag is due to the tip vortices changing the effective angle of attack (downwash). I searched some ...
Selva's user avatar
  • 741
4 votes
3 answers
2k views

How does downwash affect angle of attack?

Many aerodynamics textbooks, as well as many answers on here and similar websites claim that the downwash downstream of a wing induces a net angle of attack that is lower than just looking at flow ...
Moritz Heppler's user avatar
2 votes
3 answers
331 views

Do wake vortices interfere with the flow over/under the wing?

So as the title suggests, I was wondering if the wake vortices formed by a plane interfere with the flow over/under a wing. (My assumption is that they don't, but I'm not sure) Also, how would speed ...
Wyatt's user avatar
  • 1,329
0 votes
1 answer
1k views

Do wingtip vortices cause a decrease in the lift component of aerodynamic force, and do planes need to pull more AoA to compensate?

So, from what I know about wingtip vortices, they shift the angle of the relative airflow to where the effective angle of attack of the airfoil is lowered. Since the aerodynamic force is always ...
Vinicius Quintela's user avatar
1 vote
2 answers
255 views

Could reduced-lift wingtips allow an airplane to generate less wake turbulence?

Would it be possible to weaken the wake vortices generated by a large aircraft (which can be dangerous to smaller aircraft behind the large aircraft, and are the limiting factor determining how ...
Vikki's user avatar
  • 28.3k
1 vote
2 answers
275 views

Does closed oval wing produce two vortex and downwash between them, like normal wing? [duplicate]

Does closed oval wing like this in video produce two vortex and air between them goes in downward direction like on normal wing? I think yes ,because cause for downwash is wing that push air down, not ...
user707264's user avatar
  • 1,722