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Swept wings actually reduce drag at all speeds because some of the air flows along side the wing because they angle backwards much like sliding down a ramp instead of running into a wall. This also reduces lift because air flowing along side the wing doesn’t produce lift like the air flowing directly over the wing does, so swept wings are only fit for high speed flight.

Very easily explained with lots of information which are actually needed. Please keep on publishing new videos on new topics. Thanks

highly underrated narrator on KZfaq for aeronautics and aerodynamics.

The tapered wing is typically used with a washout airfoil design to reduce the stall and spin problems.

Thanks so much for such a decent video. This is even better than what we get at the aviation academy in England.

Thank u for the video keep up man

It was a good info about wing plan forms. thanks!

thank you for this informative and helpful video!

Right from the rectangular planform I had a nagging question. Does a straight wing start to stall at the root and then have the area of the stall radiate out due to the planform? I thought it was due to the typical built-in angle of incidence that is greater at the root and is reduced as it moves out to the tip by means of a long twist.

What a great video, thank you

Minumum sink speed wont give the longest distance on horizontal path with given altitude or time. I think there is a mistake at that point of explanation. You should check it from different sources. But anyway. Your videos are greatly appreciated. Keep doing friend.

BEAUTIFUL VIDEO

Great videos... 👍👍...thank you so much

I was surprised to see that delta wings weren't included in the discussion.

I know this is 3 years old now but @4:38 I think your graph is backwards? The blue would be the elliptical planform and lift profile. The yellow does not look ellipitical, instead it looks like a smoothed corner rectangle, which is the lift profile of a rectangular wing. Oh just continued watching, it's worse than I thought, you continue on saying the elliptical plan form provides a uniform lift profile... You should make a correction announcement in a pinned comment at the least. It's very misinformative. You also say swept wings only advantage is lower transonic drag, but they have other advantages as well. They provide roll stability, the same way positive dihedral would. Swept wings then require no or less dihedral angle.

Thank you for posting this I just subscribed

Nice video. And good explanation.

I miss an assessment of tapered wings with leading edges rectangular to the fuselage and with only the trailing edges being tapered. what's the effect on drag? and a description of the effects of foreward swept wings on drag?

Aircrafts is not a word

Wish you'd explained how it might be possible to make an elliptical with benign stall characteristics and great strength. Or did R. J. Mitchell have a secret sauce unknown others before or since?

What about tapered wings that are swept, but only enough to make either the leading or trailing edges straight/perpendicular to the direction of flight?

I love you ❤️❤️

Sir how to calculate CG of swept wing please please please reply

Sir can you reply me

You sound a lot like mini air crash investigation

Aircrafts? Aircraft is singular and plural.

3:44 "lowest possible induced drag" false

The plural of aircraft is NOT aircrafts. It is aircraft. Example: There were 2 aircraft on the runway in Japan, one more than is safe.