What was the last flight you went on? Where did you go?

You missed the horizontal stabilizers in the drawing. Without that, a plane is uncontrollable.

Does anyone else legit just watch these videos but are too lazy to actually try and make it lol *_PRETTY COOL HUH_*

Dave, Thanks for explaining that Bernoulli's principle is a mis-applied and incorrect explanation for wing lift. The Coanda effect , or "Wall Attachment effect", is responsible for the laminar air flow on the top surface to follow the contour of the wing (if the angle if attack is not great enough to stall the wing).Proof experiment: gently hold a soup spoon with its convex surface slowly nearer and nearer to a running faucet's stream of running water. As soon as the water stream just touches the backside of the stream, the Coanda effect will attach the stream to the spoon and instantly pull the spoon (lift!) closer to the stream. The fluid pulls the air out from the boundary of the spoon and the water creating a low pressure area which allows atmospheric air pressure to push the spoon and water together. You will have created "horizontal" lift. Key point, the resultant water flow is now flowing in a new direction. THAT is the downward reflection of air coming off the trailing egde of the plane. If you put pressure gauges on the ground under the flight path of a plane just taking off, a higher pressure will be momentarily sensed. Now hear this: the total mass of downward moving air coming off the trailing edge of a flat or airfoil shaped wing is equal in that instant, to the TOTAL WEIGHT OF THE AIRCRAFT. Fly a giant imaginary scale under the plane as it is flying and it will measure most if the weight of the plane as it is flying....the giant air cushion is there. Wing tip vortices are simply the faster downward moving air and the realtively level air near the tips if the wing attempting to re-join...causing dangerous for too-close- following aircraft, rotary clear air horizontal rotary turbulence. Who said "Every force has an opposite but equal reaction." ? Right. Put an entire jumbo jet on a giant scale or table and the plane will transfer its weight through the table to the ground. How else could anything be supported? The push of the wings of a flying plane essentially push down on the air. The faster the air flow the "harder" or more solid the air becomes. Thus , faster plane, smaller wings. The final question NOBODY is asking is "why are wings fatter in the middle? Elementary dear Watson! Answer: That is where the support spar was when marerial science had provided only limited strength materials. Look at the airfoil of an X-15. Practically flat. And to make it very clear...planes actually can fly upside down. I learned this when I was 10 years old from flying .049 powered U-controlled (control line) model airplanes that I designed and Not from incorrect science books. I am a pilot.

My son was studying aeronautical engineering in ICL - he did try and explain a few things, but it flew over my head (haha)!

Never did I understand how planes really flew until your experiment. Thank you.

The lift force of the wing profile is created due to the difference (difference, Delta) in atmospheric pressure. Another thing is why two such zones are being created? The most working hypothesis is that the mass of air elements - molecules - have inertia. And this inertia of the air flowing around the front upper part of the wing creates a vacuum zone behind it, and the oncoming lower part of the wing is a very small seal. Compaction is a weak force in this pair, and vacuum is a much larger share in the lift of the wing. This is what explains the behavior of your model in the film.

I really enjoyed this video since it is a bit more science centered and it also has a pretty simple way for explanation that even kids will understand i would like to see more videos like this

Wow, that's so awesome! Thanks for sharing about it! 😉

Dude, now I think he's a professor.😂

(GASP!) The explanation was perfect. I hope you’ll make more educational videos like this one.

I knew most things about airplanes Some of this I learned from you Thanks Dave

Please folks, this is a simple experiment to understand how physics and an airplane can work. It's kind of silly to ask about horizontal stabilizer and other things that are obviously not relevant since the purpose of this video is to provide a basic explanation. Stop asking nonsense.

Very well explained and demonstrated Sir 👍 Thank you.

Very cool. Nice demonstration!!

You can see that the straw is tilting rightward, so maybe you could reduce friction between the straw and the string if the string was also slightly tilted rightward. great video as always :)

Im happy you made this channel bc a long time ago i suffered with sickness until i watched this channel thank you so much

I could use this for my science fair! Thanks!

Honestly I learn more from this than school

Modern fighter aircraft have fuselages shaped like airfoils to generate lift along with the wings to aid in slow speed stability as well as high speed maneuverability.

Very well explained

1:59 complicated talk Me: that looks like a whale and some waves... I can’t even draw like that...

Wow! Pretty cool stuff!

Great experiment showing how the airflow over the top of the airfoil can aid in the generation of lift. Also, good catch on how the equal transit time linked with Bernoulli’s explanation is false. Expanding on this by further placing an airfoil in a wind tunnel it can also be observed that the pressure in the Flow-field is the same around the airfoil (sourced from How do wings work? Holger Babinsky 2003 Phys. Educ. 38 497), thus further showing flaws in Bernoulli’s explanation of lift.

Amazing ! Learned from this.

Nice practical example

Thanks needed this

Well explained. I was looking for a good way to explain this to my kids and will try the experiment with them.

hi im jenil from india i would like to thank you that you made this video for us and i request you to make more videos on this in heavily detailed also some aerodynamics in simple language thx GREETINGS FROM INDIA

Very nice trick of takeoff explained well here ...👌

You're a great drawer, dave hax!

Thank you very much ..,I like this experiment. Good

DaveHx. You are wonderful teacher thanks for sharing this vedio.

u can put vertical tail below too to stabilize for wing from below too

LOVE YOUR VIDEOS!❤️

you are right it is pretty cool!

ur drawing is sooo beautiful I LIKE it

An aeroplane with a symmetrical wing section like NACA 0012 can fly quite easily, and can fly upside down as well. How do you explain this? The equal transit time theory is correct if the fluid is liquid helium, but no net lift is produced. Can you explain why?

Super explanation 👍

Wish I had found this experiment instead of Pitsco. This is much more kid friendly

Excellent explanation

You can try this experiment without the hair dryer. Use a length of fishing line(smoother, therefore less friction) about 3-4 ft long. Hold each end of the string in a vertical position with your left hand at the bottom and right at the top. Keeping the string taunt, spin in the direction of the leading edge(front) of the wing. You won’t make a whole revolution and the wing will climb from bottom to top quickly. The faster you spin, the quicker the wing climbs. You can also do this by holding the wing in front of a fan. If you are demonstrating this for younger students (elementary/jr high) it gets their attention quickly. I did this demonstration with my students(7th grade) and than broke into lab groups so they could build their own.

Davehax the Science Teacher or I mean Physics Teacher

2:00 a.m no blue!! weird trick.. now look 2:00 a.

Cool project. Just needs a little longer straw

Hey dave, just wondering, does this work when you make the wing with normal A4 paper? or do you need it to be a bit stiff?

Actually, it is a combination of Newton's 3rd law, and the Coanda effect that makes a plane fly, not the Bernoulli principle. The Bernoulli principle is only applicable in a closed tube.

The category should be EDUCATION

Davehax is now Davefacts

Friend: Wassup Me: The sky...

Well explained that

My Son Loved This Experiment............He Will Try Sooner Or Later

Wow wow wow this is really encouraging

And the horizontal stabilize?

You're very good at drawing, DaveHax

Better than learning this at school

DaveHax- Planes generally have two wings... Me- Yah don't say

Love the music.😁

go dave!

Fits of all, air does not move past the wing. The wing moves through the air. Big difference. Downwash at the trailing ede= lift. Period. Other smaller effects (upwash, pressure differences, etc.) are not significant.

Aerodynamics of an elephant

This guy can draw an airplane better than I can 😂❤

There' s *USUALLY* two wings ...and of course, the engines!Which *USUALLY* hang off the wings

The shape of the wing is not the key point for 'why the airplanes flies'. Aerobatics airplanes has a symmetric wing :D

Awesome. Bringing this to my science class tomorrow... The wing, not the video.

👍🏼👍🏼👍🏼fantastic

The stabalizers also has the rudder to control the planes direction.

Nice job

Hey, Dave Could You please do an experiment showing the mechanics of Steam Locomotives?

Very deducational fir children Nice

You just forgot the horizontal stablizer, the plane won't be able to control it's pitch and would be uncontrollable.

0:10 4 wings 2 big front ones 2 small tail ones

I'm still confused by why the air on top of the wing is faster. It is going the same speed as the bottom air originally, but it now has more distance to cover. You would think that it would be going slower, not faster. I mean... I do remember from physics that horizontal acceleration doesn't change even if vertical speed changes (so a thrown ball going 15 mph south would still be going 15mph south as it drops, except for friction slowing it down). So is the idea that the air is still going sideways at a constant speed, but a new force is making it go vertical? Because if that's the case, then because it is covering that same distance, it's going to be moving quicker... if there's some other force that is also keeping it stuck to the wing instead of climbing the first hump and then flying off parallel to the bottom wing. I'm not sure if I'm making sense but I feel like I'm missing something.

Love the Chaplin era piano tune heheh.

Hiii we love u ♥️

You should start adding MLA format citations under your videos for easy citing.

What if i threw the paper plane (without wire/rope) from a 4 story building? Would it fly?

at first, i thought the wing lift because the bottom part. now i know its the upper part that causing lift

*PRETTY COOL HUH* THIS DIALOGUE NEVER GO OLD

What about the 2 small wings at the back of the plane with the flaps?

(DaveHax Has Posted A Video On 6:18AM, June 14 2019

I'm back 4 years later because Imma try to built an ultralight

Awesome video

Wow I went on a plane when this came out

First BTW I'm a big fan(:

Pretty cool huh..luv u so much💙🤩💙

Dem wings 😂

Love you

Dave hax Have you done aeronautical engineering?

So both principles work?

Hats off

best drawing ever..

What if there's a strong wind coming from above or under the wing/plane? Does it do anything?

I might make this for my science fair project

Awesome

Thank you

Man's prepared for article 13. GG

Cool science

this helped me so much for my school project! (:

very good