What is INDUCED DRAG? 

I'm only just now realizing I wasn't properly understanding induced drag until seeing your video. Thanks so much!!!

In 2:36 minutes you managed to make perfectly clear what was totally unclear in my ATP book! Really helpful. 👏👏👏

Wow! Best explanation I've seen so far, and far better than in any of the textbooks. Thanks!

the angle between free stream relative airflow and downwash is called " the induced angle of attack". There is one question in ATPL. Now you know the answer. Thank you flight-club, again.

Absolutely great. Short, crisp, to the point.

It's been almost 5 years to understand induced drag clearly. And this clip helps me out. I claped my hands after watch this.

Yes, the illustrations explains clearly and immediately. Thank you! Now I understand

It seems to me that even without vortices causing downwash and a local airflow, at almost any substantial angle of attack the lift vector of the wing is going to be pointed slightly backwards and therefore there will be a component of that lift force pointing backwards, causing drag. The local airflow from the vortices simply increases the tilt of the lift vector backwards even more.

wow ! ever since i learnt about induced drag i used to visualize by myself that how does vortices affect airflow but always had a slight confusion but today its crystal clear nd will never forget in my life.☺

Probably one of best and simplest explanation.

This channel helps me a lot but I have never gave it a thumbs up. And I'm truly worrying about that but instead of doing like that I'm pretty sure that so many people like me keep the channel under subscriptions 😘😘. Simple and clear explanations with graphical illustrations. Superb!!❤❤

Best explanation and visual representation I’ve seen! Thank you

Excellent, thank you for posting.

Thanks for the amazing explanation 😀 please make your next vedio on sweepback wings

underrated video

Your videos are so helpful! Your graphics make these concepts so much easier to understand. Appreciate your channel.

What an excellent explanatory video! Bravo! Instant-Sub!

This is the best and pure knowledge. Thank you!

The problem I have with your illustration of spanwise flow is that I observed just the opposite. I placed a camera behind the main wing of a model plane that I flew in light rain. Drops of water small enough to fit within the boundary layer on top of the wing could be seen moving outward from the fuse, not inward.

Can’t wait to present it to my students! 😉 straight forward explanation. Loved it

Perfect video, thank you so much

Good information and perfect illustrations video

Fantastic, thank you

Excellent presentation !!

Awesome!!!!!!!!

nice

Very Nice.

After watching this video by brain is a vortex. What creates the horizontal flow 90 degrees to the relitive wind? Just the pressure difference?

Amazing

Great explanation

Superb! Pls make a video on how local AoA changes on dihedral wings of an airplane in a sideslip.

So basically the high pressure going to the low pressure is like a car going into oncoming traffic and hitting the oncoming cars, that is induced drag in a example form?

👍👍👍

Could someone please help me understand why the wingtip vortices, which cause downwash of the airflow behind the wing, affect the local relative airflow at the wing itself? I don’t get why the airflow in front of the vortices should be affected.

A day of reading explained in a 2 minute video :)

Wow

Where is induced drag smallest? Tip, Root, trailing edge or leading edge?

what is local airflow exactly???

So if newtons third law explains that since air is deflected down and back from the trailing edge there is an equal and opposite reaction force upward and forward, then why does the effect of induced drag that further bends the downwash downward not result in the creation in more lift. In theory air is being deflected more downwards and would that not therefore mean the equal and opposite reaction to the downward directed air be upwards even more? I dont think induced drag and wing vortices increase lift, but this logic tells me it does. Where am I going wrong? I must be misunderstanding something

what does the yellow arrow represent?

good explanation, I'm still no sure why induced drag diminishes as speed increases

But there’s something I dont get… there are two things here which produces drag. First the vortices at the wing tips due to pressure differences, which it seems to steal eneryg from the forward movement of the aircraft. And secondly, the fact that the lift force acts tilted backwards because of the angle of attack, which also causes drag, nonetheless, I would say this is a type of “form drag”, as its principle it’s the same. Then, which is the actual induced drag? Both of them together? Because for me it seems like one is independent from the other but both cause drag. Someone help me…

Wtf it hit me like a rock

*I L I K E P L A N E S* (and rockets space planes are Y E S)

2:02

Great explanation, thanks a lot! 🫶🏻

so then why does induced drag reduce as you increase speed

☠️

Why Doesn’t the downwash of air due to the vortices create lift? Newton 3rd law

This explation is exactly right. The magnitude of the induced drag is D = (Lift /span)² ÷ q π where q is ½ density speed², called dynamic pressure π = 3.1416 high induced drag at low speed low induced drag at high speed high induced drag in a steep turn. high induced drag with a short wing high induced drag with heavy load

The downwash is the lift force.