The Aerodynamics of Flight

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The Aerodynamics of Flight

Рет қаралды 2,319,026

Күн бұрын

The creator of this video allows full use of its contents for educational purposes.
geardownfs.com/
/ geardownfs
This video covers the basic aerodynamics that allow for all different types of aircraft to fly.
Everything in this video should only be applied in theory flight simulation. I am not a real world pilot, and therefore cannot testify on behalf of the actual processes of real world aviation.
Produced by Garth, with GearDownFS

Пікірлер: 1 000

@crazycraftyeshwanth1322 3 ай бұрын

Who watching this in 2024 vote here 👇👇

@yashitha398 Ай бұрын

🤚🏻

@iqbalislamic 21 күн бұрын

Present

@CPS747-8 2 жыл бұрын

I remember seeing this video in my 6th grade science class. I haven't seen this in ages! I know I was really interested in airplanes way back then and I still am now. Hopefully, I graduate next year with my BS in Aerospace Engineering. I'm glad this was a part of my life.

@Xshado2 9 жыл бұрын

Ever try to put your hand out the window of a fast moving car? Ever try to make a horizontal shape? Notice how depending on the angle of your index finger, your hand gets pushed up or down, or difficultly, not at all? That's how the wing works.

@kambakktishq 9 жыл бұрын

do not waste ur 7 minutes and 13 seconds on this video ..here is what you were looking for !!

@ButterCookie1984 8 жыл бұрын

Omigosh! This is a GREAT point! Yep, when hanging an arm out of the window of a moving car, the air seems to "lift" it no matter how much I try to push it down, as long as the car is moving forward at a great speed.

@DreamersTouch 8 жыл бұрын

+Amr rayyis Awesome explanation! Studying aviation and it sure is tricky! Thanks for this tip

@ljukyguitar 7 жыл бұрын

hahah i do that all the time during summer :)

@YellowKurt 6 жыл бұрын

My hand Is a dolphin!

@Thetheobaudry 9 жыл бұрын

We have thrust, Lift, weight, and Dreg

@anniefeng1868 9 жыл бұрын

oh I have lift drag gravity and thrust.....

@elzbietaczerw9294 5 жыл бұрын

@@saltyrice0 at least he can listen to the narator thats saying dreg not drag idiot

@theonerealtemp Ай бұрын

@@anniefeng1868 what?? i have push, pull, up and down

@tariqali3223 10 жыл бұрын

a) Draw a typical aerofoil shape. b) On your diagram mark the chord line. Also draw the relative airflow on the aerofoil shape diagram as if the aircraft was descending. Label the angle of attack on your diagram. c) Draw the lift force and weight on your diagram. Question 2 a) Define the lift Equation. b) With respect to the lift equation describe how if an aircraft wants to maintain altitude yet increase and decrease its speed what properties must change, also describe how the aircraft may appear to an observer at slow speed and at high speed. c) With the use of diagrams explain how the angle of attack changes on an aerofoil section with the deployment of high lift devices (flaps). d) Describe again with respect to the lift equation what properties change to give increased lift with the deployment of FOWLER flaps. Question 3 a)Draw on a series of three diagrams how the airflow changes around an aerofoil section as it goes from zero angle of attack to the critical angle of attack. Also mark on each diagram the likely position of the centre of pressure. b)Explain washout on a wing and how it is helpful for aircraft control near the stall. c) Explain briefly how winglets improve fuel efficiency in the modern jet aircraft.

@mazedurrahman3213 6 жыл бұрын

very nice expression,suggegtions. Constructive. Thanks a lot.

@paigeh8582 4 жыл бұрын

Am I the only one commenting in 2020? Lmao

@titaniadong9613 4 жыл бұрын

dont worry sis im here too stuck in quarantine and doing online work 😢😢

@alvaroakatico9188 4 жыл бұрын

Is it me, or do the people commenting SAME are children with nothing to do?

@chickennuggetdoctor5689 4 жыл бұрын

nope lol

@rhajibasadil7674 4 жыл бұрын

@AhHyn 4 жыл бұрын

No you're not

@VerusAnimus 10 жыл бұрын

That camera example though!

@liangchristina7919 5 жыл бұрын

Verus Animus 😂

@TylerFidelis 4 жыл бұрын

I'm the 5 year old great great grandson of Amelia Earhart and this video really helped me understand the general principles of aerodynamics, which will enable me to one day acheive my dreams of becoming a pilot. Thank you. Now I have to get back to Kindergarten.

@Cipher71 13 жыл бұрын

4:23 I don't think I've ever laughed at an educational video before. xD

@sashagawley5148 4 жыл бұрын

4:23

@Buzzlybee 4 жыл бұрын

ur so immature it's just a word

@mrlol9021 4 жыл бұрын

@RL - 06MR - Great Lakes PS (1476) thats was 8yrs ago xD

@DurosModz 4 жыл бұрын

@@Buzzlybee it isnt about the word, it was the contradiction

@giantfishy8249 4 жыл бұрын

@@Buzzlybee it beep what word did it say?

@nikolinechristiansen2743 7 жыл бұрын

i'm in 8'th grade and this really helped out my project now i finally understand what all the websites didn't tell me

@suleshangodoyin548 8 жыл бұрын

As part of Learning Engineering process, I really appreciate for the introduction of this topics with a big thank. It's me, Sule Shangodoyin.

@fetchanimations7109 6 жыл бұрын

Thanks! I’m thirteen and I want to be a pilot someday and this gave me a clear bit of basic information to fill up my mind (:

@domigrin4886 4 жыл бұрын

Go for it!

@munizam2613 3 жыл бұрын

Eyy, Goodluck mate!!

@shadoww7301 3 жыл бұрын

@Sadie Stewart Do you still wanna become a pilot?

@suspense_comix3237 2 жыл бұрын

You can literally get a pilots license when you are 13. Don’t believe me? There’s this 13 year old girl who is trying to become the world’s youngest pilot to fly around the entire world.

@ectoplasmic5789 Жыл бұрын

It's 5 years later now. Did we get a new pilot yet?

@WarrenGarabrandt 10 жыл бұрын

Bernoulli's Principle does not fully explain how a wing generates lift; the physics of how lift is generated is complex, and involves the relative air speeds above and below the wing, the angle of attack of the wing, and the deflection of air streams. If it was only Bernoulli's Principle, then airplanes wouldn't be able to fly upside down.

@Completeaerogeek 10 жыл бұрын

The relative 'speed' of air above and below the wing is only relevant as an after effect of the passage of the wing. With an effective AOA, the Lower surface of the wing pushes the static air forwards and downwards creating a Newtonian upwards and slightly rearwards reaction (2nd and 3rd Laws). The Upper surface of the wing bends the air downwards while dragging it slightly forwards due to skin friction (form/induced drag) , This change of velocity causes a resultant force Upwards and slightly rearwards. .(F=MA) The upper surface air does not require any special effect to follow the downward slope of a conventional cambered upper surface wing. it has no choice-there are no vacuums in normal space. As the air turns the corner of the leading edge and changes direction its density drops. This combined with the change of direction and the fact the upper surface is on the leeward side of the moving wing creates a pressure differential. Voila, you have lift...No magic required. The test of any so-called lift explanation is whether it works with a flat plate aerofoil- if it doesn't it is wrong. No exceptions...

@danutarozek4872 4 жыл бұрын

Nobody cares

@liamobrien9004 4 жыл бұрын

@@danutarozek4872 you replied to a comment that was made 6 years ago

@brilat222 4 жыл бұрын

Liam O'Brien oh haha

@riteshguleria8102 2 жыл бұрын

Coanda effect

@capplething 6 ай бұрын

Im in love with the sky, and had dreamed of being on an airplane and becoming a pilot. Obviously to become a pilot, I’d have to study the basics and controls of the plane and how it works. This video helped me understand aerodynamics more. I’m 15 and I’m hoping that the things I learn about aviation at this age will help pay off.

@MrAndreocity 10 жыл бұрын

DREG

@jueraljy9263 10 жыл бұрын

DRREEEEGGGG

@JackAD 10 жыл бұрын

DREEEGGGGGGGGGGGGG!!!

@Cinnabun 10 жыл бұрын

DREEEGGGGGGGGGGGGGGGGGGGG!!!!

@maryamqureshi6597 6 жыл бұрын

DREEEGGGGGGGGGGGGGGGGGGGGGGGGGGGG!!!!!!

@IsaacWolfOfficial 5 жыл бұрын

Da Effect of DREG

@santi101090 12 жыл бұрын

The drag is the force produced by 2 phenoms added: 1)The viscous friction between the air and the aircraft (Parasit drag) 2)The energy absorved by the vortex, generated by the wing lift. (Induced drag)

@NataliesImperfectJourney 10 жыл бұрын

So, I have decided to try to learn about stuff I had no clue about and today's topic was how a plane flies. So, thank you for giving me the "how planes fly" for dummies! It was great and super understandable!!!

@navishkotwal 10 жыл бұрын

hey you are learning aeronautical engineering or flying?? or just like that for fun ?

@footsy420 9 жыл бұрын

It's really pseudo information. There is some ttruthiness in there but the main hting that makes planes fly is how they are balanced to enable onctrol and the angle of the main wing to force air down. The shape improves efficiency but is not the reason planes fly.

@NataliesImperfectJourney 9 жыл бұрын

Well, I was really just looking to glean a little something on a subject I knew almost nothing about...

@henriettegoldwater5447 2 жыл бұрын

This video is amazing, the aerodynamics is explained in a very simple way. Thanks to it I finally understood much better what the aerodynamics of flight is.

@nickislearning Жыл бұрын

I agree with you!

@footsy420 10 жыл бұрын

The description of lift is a bit off. First of all, it doesn't mention that the wing is so the front of the wing is higher the the rear. There is some lift from the lower pressure on top of the wing but its main function is to direct air downwards efficiently. By forcing the air down, there is an equal and opposite force pushing the wing up. In fact flight does not require an airfoil. Just a slightly angled straight wing directing air down will work albeit with less efficiency. The real secret to flight is proper balance, not the airfoil.

@navishkotwal 10 жыл бұрын

then tell me how an aircraft takes off from the ground?? if it is running parallel to the ground and aircrafts you see today have no inclined wings so why do they take off??

@TvehX 10 жыл бұрын

navish kotwal There are flaps on the wing that rotate downward and the wing is not parallel to the fuselage.

@navishkotwal 10 жыл бұрын

***** this is the thing which i wanted to check ...Dude don't just guess and post it on the youtube.You know nothing about the flight dynamics. .. All the aircrafts that you see today have Wings fixed to the fuselage and are not movable not even 1%.The movable part is the flap that is infact provided to change the relative angle of attack. .....Movable wings are still in resarch ...You can see the prototype in videos at youtube Scorpion is the name of the aircraft developed in early 90's which have movable wings to increase the lift and avoid stalling ...

@TvehX 10 жыл бұрын

navish kotwal not sure if you're an idiot or a troll. Go to college.

@navishkotwal 10 жыл бұрын

***** haha dude you can not fool an aeronautical engineer..I think you need to go to school and learn physics...!!

@akajay6365 3 жыл бұрын

Your thumbnail helped me get my flight license on bitlife

@stuffedpigz4942 8 жыл бұрын

The way lift is explain in this video is partly untrue. Wind tunnel experiments have shown that air does move across the top section of the airfoil faster. Instead, due to the shape of the wing, air is directed downwards. This, according to Newton's third law of motion, creates a equal reaction towards to aircraft from the air. Your explaination is not entirely correct as Bernouli's Principle suggests that the air passing the airfoil must join back together at the trailing edge. Studies at Cambridge Univercity has concluded that air does not rejoin. The theory also ingores Newton's third law of motion, it does not contain a description of the opposite reaction caused by the air directed back by the airfoil.

@davidkrowa4153 8 жыл бұрын

+StuffedPigz can you please cite these experiment? Id like to look into this more. So in essence a wing is the same as a fan? And Bernoulli principle is nothing more than a covered up 3rd law of motion?

@stuffedpigz4942 8 жыл бұрын

The*

@kchrisc 8 жыл бұрын

+StuffedPigz You hit the nail on the head. Now take it a step forward. Lift in aircraft is generated by accelerating air downward, much like a rocket. Therefore aircraft are sustained in flight in accordance with a Newtonian Third Law exchange of force/energy downwards. Rockets also utilize the Newtonian Third Law to fly by directing force/energy downwards. However, with rockets it is quite clear that massive amounts of energy must, and are, consumed in sustaining flight. What of the energy consumption of aircraft? How do they sustain themselves in the air for so long with less energy consumption rates than rockets? What is the primary source of energy utilized by aircraft to generate lift, and to sustain flight? That would be gravity--Gravity provides two-thirds to three-quarters of the energy utilized in generating lift on an aircraft's wings. Essentially a plane is always being pulled downwards by gravity. That pulling force causes air to flow over an aircraft's wings, accelerating the air downwards, generating lift. Additional energy then is required to overcome drag, and to generate the additional lift required for level or climbing flight. That energy comes from the conversion of chemical fuel energy to thrust in the engines. Aircraft are then sustained in flight by air accelerated downwards by the wings with energy derived simultaneously from both gravity and chemical fuel energy induced thrust. This fact is lost on most, the vast majority, due to the use of Bernoulli, and/or "faster transit" in the teaching of aerodynamics and the nature of lift and flight. If one doubts this, be reminded that planes have the ability to fly/glide if thrust is lost--The glide-ratio. That is, without thrust the plane's/wing's conversion of gravitational energy becomes apparent. The above fact is also why mankind can fly multi ton aircraft for thousands of miles, but are unable to create a viable jetpack that a single man can fly for more a few minutes. The jetpack has no gravitational energy conversion mechanism, and therefor is solely reliant upon its carried energy in sustaining it in flight.

@antoniolucena7304 8 жыл бұрын

+kchrisc thats the readon why you shouldn't believe in everything on the internet

@antoniolucena7304 7 жыл бұрын

The wings were not 100% parallel to the ground. They had some degree of inclination.This way they were able to create some air acceleration downwards. Eventhough the drag was awfull

@nathancosta7155 8 жыл бұрын

Bernouli's principle is only applicable to straight streamlines, not curved streamlines which is the case when speaking of lift forces on an airfoil. It is the flow curvature over the upper and lower surfaces of the airfoil that generates lift. Hypothetically, if you were to walk downwards toward the upper surface of the airfoil from the space far above it, you would experience a negative pressure gradient. You will continue to pass curved streamlines with lower pressure than the ones previous. The lowest pressure will be reached once you reach the upper surface of the airfoil. The pressure just above the upper surface of the wing would be lower than atmospheric pressure. Conversely, if you were walk upwards toward the lower surface of the airfoil from the space far below it, you would experience a positive pressure gradient. You will continue to pass curved streamlines with pressures greater than the ones previous. Thus, the pressure just below the lower surface of the airfoil would be greater than atmospheric pressure. The resulting pressure difference between the upper and lower surfaces of the airfoil (p_lower > p_upper) generates upward lift forces on the airfoil. This is the proper way to think about lift.

@DK-mc9cn 9 жыл бұрын

Oh god the Cc is hilarious. "Wat in Drake."

@stefankozma 12 жыл бұрын

It depends. If you go fast enough (if relative airflow is great enough) most aircraft will rise by themselves at some point, with no pilot input. Most aircraft have their wings set at an angle greater than the body (the riggers angle, usually 4 degrees) so they produce flying lift without much pitch up.

@beeschurgercom 6 жыл бұрын

Thanks for the lesson ☺ I'll be using what I learned for my aerodynamics project

@nhadley88 12 жыл бұрын

Induced drag occurs in three dimensional flow. Because the wings have a finite span, the flow spills over the tips of the wing (down wash). Down wash causes the wing to see the flow at a different angle of attack. This difference in flow angle causes the lift created by the wing to have a drag component. Essentially, the lift is pushing backwards and upwards at the same time. The backwards component of lift is called "lift induced drag"

@FSXMovies 15 жыл бұрын

Lol at the part with the camera xD Cool tutorial :D

@oslosecurity 11 жыл бұрын

My 8 year old is doing a science fair project in elementary school and this video was great for explaining the basics. So wanted to say thanks for uploading!

@johnhammond7202 9 жыл бұрын

Why is he pronouncing it "dreg" sometimes instead of drag... ISH TOO MUCH DREG, WE CANNOTS FLY!

@williamparker543 6 жыл бұрын

IDK, but it says Drake in the Closed Captions

@crimsonassassin5828 5 жыл бұрын

@@williamparker543 yeees

@ricp 2 жыл бұрын

the book "Stick and Rudder" by Wolfgang Langewiesche explains LIFT in much more simple terms,.. the Wings push the air down (given it has positive Angle of attack) , and with the proper speed, having pushed enough volume of air down - the airplane takes off. it's a fascinating read

@SouthNorwichNews 9 жыл бұрын

soooo helpful thank you so much

@ImJustNicoo 4 жыл бұрын

Out of every video on the internet, WHY DOES MY ONLINE SCHOOL WANT ME TO WATCH THIS?!?!?!?!

@TranspennineExp185 10 жыл бұрын

Very Helpful, Thanks

@stefankozma 12 жыл бұрын

Yeah that is correct. Getting kinda technical, but there are 2 main types of drag affecting an aircraft. Parasite drag is the general drag we usually talk about due to friction from the air. So when thrust is greater than drag, the aircraft will accelerate, but not for ever. As the aircraft's airspeed increases, so does the parasite drag, until the Drag is again equal to the thrust, and the aircraft is stabilised at this new airspeed : )

@dirkhoekstra727 10 жыл бұрын

Now if you want to know the real truth about how lift works on any wing and not this old, archaic, poorly researched Bernoulli theory, read Jim Davis' PPL training book.

@dirkhoekstra727 10 жыл бұрын

Bernoulli's Principle applies to fluid dynamics in venturi systems and cannot be applied to aircraft wings! Lift is generate not with pressure difference between the bottom and top of a wing, but mainly because it deflects air downwards. Because of Newton's Third Law that states that for every action there is an equal and opposite reaction, this means that as the air is deflected down, the wing is deflected upwards. Take a completely flat wooden plank and stick it out of a moving car's window at a slight angle (angle of attack). The plank will deflect air down and as reaction will lift upwards/backwards. This is how the BOTTOM of the wing creates lift and surprisingly it creates only 1/3 of the total lift! 2/3 of the total lift is created by the TOP of the wing. Because of the shape of the wing, the top of the wing also deflects air down. It does this by means of the Coanda Principle and Newton's Principle. Coanda proved that a stream of fluid or air moving closely over the surface of anything it passes over, will tend to cling to that surface. To proof this at home, hold the rounded end of a spoon so that it just touches the downward stream of water from a flowing tap. Water will cling to the surface and deflects to one side. The spoon will be deflected in the opposite direction. So the top of the wing (because of the airfoil shape) also deflects the air down and result in the wing lifting up. Obviously if the angle of attack becomes to large (angle between relative wind and wing cord line) air over the top will not cling to surface anymore and become turbulent. Downward air deflection will stop at top of wing and the wing will stall.

@PeterRumanRumo 10 жыл бұрын

Dirk Hoekstra I think the basic point was well made - it's the shape of the wing. cheers.

@LiquidSasha 10 жыл бұрын

Peter Ruman LOOOL

@lizandroalarconcarrasco4873 10 жыл бұрын

that book you mentioned is just a booklet... your knowledge in aeronautics does not seem accurate.. your opinion is worthless, trust me.

@dirkhoekstra727 10 жыл бұрын

Lizandro Alarcon Carrasco Jim Davis has over 10000 hours of training civil and military pilots, 4000 hours of corporate flying, charter work, aerial photography and surveying. He has performed in aerobatics and pylon racing. He pioneered flight training in South Africa with his first full time flight school which he started in 1989. Called 43 Air School, the school gained world wide reputation for quality training and attracts customers from all over the world. First off all, I own the book. And I know the difference between a booklet and a 504 page book. Secondly, I couldn't really give a fuck what you think of my opinion, but to question the opinion of Jim Davis is a little concerning.

@guy014 15 жыл бұрын

Everyone should remember that lift is relative to the angle of attack. Even with an angle of attack of 0 degrees, the airfoil may still produce lift. There's more to why the aircraft lifts off the ground on takeoff. It isn't only to clear anything that lies beyond the runway and obviously get up into the air. The higher the angle of the wing relative to the wind passing over it, the more lift is created. Great video Garth!

@unfiltered577 8 жыл бұрын

Wait, but if mg=lift, it wouldn't take off.

@fredydelamora9301 6 жыл бұрын

weight equals lift only at steady flight

@zahidabro6868 8 жыл бұрын

Newton 3rd. law is fine for horizontal movement. Rocket thrust backward and reaction forward. During stable flight upward force(lift) equals weight of plane, a state of equilibrium.But I explained, how upward force(lift ) is generated. Wings X-sectional shape create 2 different velocities of air molecules which results low and high pressure zones.

@becz2cool4u3 3 жыл бұрын

2021 anyone?? here for school.

@j.chenmuas 3 жыл бұрын

Me becoming an A&P mechanic!

@blackwunk 13 жыл бұрын

Losing the camera at 4:22 caught me so off guard that I laughed until I was blue in the face for the rest of the day when I heard the commentator scream "Oh Sh*t!" Way to inject some humor into the training film. Very well played Sir!

@mia_bentzen 9 жыл бұрын

dreg... dreg..... DREG. DDDRRREEEEGGG... it's drag buddy

@gergthewerg 4 жыл бұрын

mate its his accent

@taharbenseddik5607 3 жыл бұрын

Aerodynamics is such an interesting subject. Important to understand everything about flying.

@BeepBoy 3 жыл бұрын

bruh, why is this guy so emotionless? he sounds like technoblade but less funny lmao,,

@justin.c09 3 жыл бұрын

hes just trying to be clear

@justin.c09 3 жыл бұрын

but im not disAgreeing

@david_porthouse Жыл бұрын

When a slightly inclined aerofoil starts from rest, it dumps a starting vortex in the flow. This can actually be visualised. If it stops, it dumps a stopping vortex. If it moves in an intermittent start-stop action, it generates a vortex street which can also be visualised. While the aerofoil is moving, the stopping vortex is tied up with the aerofoil as bound vorticity. This generates lift by the Magnus effect. I can explain the Kutta condition and the Kutta-Joukowski circulation theorem if you like, but Magnus effect is good enough. A hydrofoil moving through liquid sodium generates lift by the same mechanism. The same hydrofoil moving through liquid helium with the same geometry or kinematics does not generate lift, because the helium is a superfluid with no viscosity and therefore no starting vortex. Explanations appealing to Bernoulli, Newton or Coanda are useless at distinguishing between liquid helium and sodium.

@minecraftiscool6066 7 жыл бұрын

best anime 2017

@nhadley88 12 жыл бұрын

Depending on the naming convention this can vary. However, when studying aircraft performance, typically "V1" denotes the velocity of the aircraft just before take-off. "Rotate" (or "Vr") is the rotation velocity of the aircraft. Rotation velocity is the velocity where the aircraft is rotating on the rear landing gear. Since lift is proportional to velocity, at Vr the aircraft is not quite producing enough lift to completely take-off -- lift is less than weight. When L > W the a/c takesoff

@PupperzP 7 жыл бұрын

i don't like to learn

@assassinwizardxd3643 6 жыл бұрын

learning is good because you have more knoledgement to know how and why we are living. if theres something interesting that you want to learn you'll need tosearch and study and practice. one thing is learning something that you like and another thing is obligating you to learn

@glaceonlove8272 6 жыл бұрын

but i think you need to learn how to spell

@Drflash55Official 11 жыл бұрын

When I was at school with my classmates, we were learning about the Aerodynamics of Flight and so when my teacher showed this video, at 4:23 one of the students jumped up from the beep because of the loud volume of the speakers that were around the classroom ceiling. Most of them laughed, and I just kept listening to the video

@Observ45er 10 жыл бұрын

Why, oh why do so many people insist on making video after video with poor explanations of things such as lift...?? and that they don't understand how to securely mount a camera.... Yea! that makes *ME* want to believe the rest of what this guy says...That's the ticket! ... sigh. ... "The wing itself doesn't generate lift." Wha? I guess the wing has nothing to do with it, eh? Oh. I get it. The shape of the wing is not part of the wing itself. Where do these people get this stuff?? ... The pressure difference does not produce lift. The pressure difference produces ONE of the effects that contributes to the total force called lift. .... Somehow not being a pilot (or technically educated) somehow makes this author qualified to give instruction on aerodynamics...got it! ... and Yea; the *best* way to demonstrate DREG is to show that we don't know how to securely attach a camera in the slipstream...Cute! ... "This video covers the basic aerodynamics that allow for all different types of aircraft to fly." Except for lift and how to pronounce Drag.

@Atipatii 13 жыл бұрын

As far as I know, during climb lift is not greater than weight. Part of the thrust is used to overcome the drag generated by the wing, and the remaining is used to accelerate the aircraft on the inclined climb angle, the steeper the angle the greater the component given by the cosine of the climb angle

@karinawagner3374 9 жыл бұрын

neat... i needed this vid for school...

@footsy420 9 жыл бұрын

this vid teaches some misconceptions.

@thefarah7751 9 жыл бұрын

Chris Foote Could you please tell me what is the misconceptions about? Cuhs I am a bit confuse about your post up there ^ about the wing and so on. M not that educational tho, thank you (:

@Megalodon64 11 жыл бұрын

Bernoulli's Principle also comes into effect even when the airfoil is symmetrical. When the wing increases its angle of attack, the air travels much faster over the top of the wing because it gains speed as it travels downwards. And the bottom of the wing is blocking much of the air so the pressure is greater in the bottom. So theres Nweton's law because the air is traveling downwards on the top, which reflects the wing upwards and Bernoulli's principle because of the change in pressure.

@FarklePlaysGames 8 жыл бұрын

My teacher showed me this just now

@user-eq1wk1cy5u 8 жыл бұрын

Hue hue hue

@crimsonassassin5828 5 жыл бұрын

mine only now

@zuludelta100 12 жыл бұрын

I learned about bernoulli in plumbing class, it has nothing to do with the relative winds displacement above or below an airfoil, bernoulli is negative pressure generated when fluid has to pass through a small orifice causing velocity of fluid to speed up, and in most cases this only happens when fluid is enclosed or restricted with in something for instance a copper pipe, also other factors must be included such as syphinage, back syphinage, negative and positive pressure.

@giantfishy8249 4 жыл бұрын

@breezybz 4 жыл бұрын

Hi my sister.

@giantfishy8249 4 жыл бұрын

@@breezybz hii bri

@breezybz 4 жыл бұрын

@@giantfishy8249 :D

@CdH94 14 жыл бұрын

Just thought I'd throw it out there, but in gliders/sailplane, people often ask "What about the force of thrust on a glider?" On an engineless aeroplane, gravity replaces thrust. Don't know why I said it but I did.

@chrisgreening2194 7 жыл бұрын

dreg

@assassinwizardxd3643 6 жыл бұрын

ill explain the lift. Lift is the force that directly opposes the weight of an airplane and holds the airplane in the air. Lift is generated by every part of the airplane, but most of the lift on a normal airliner is generated by the wings. Lift is a mechanical aerodynamic force produced by the motion of the airplane through the air.

@1makes1 12 жыл бұрын

Do I have to say how much this helped me? Amazing my friend!

@bethmoritz1346 11 жыл бұрын

I was looking for a video show a group of 5-9 year old kids in our homeschool co-op group. This may not be the one for that but I thought it was a great video on explaining flight to me so that I can better explain it to kids. Thanks!

@sohail1855 4 жыл бұрын

Hello Pilots, Do I understand it right that, Stall will happen when you have a large angle of attack at relative low speed? But if, with the Same Angle of Attack, the speed is much higher, then stall won't happen. Right? And the plane will climb up of course. Right? If not right, Then how come that fighter jets and other acrobatic planes can climb strait vertically? I suppose this is because of their high speed, which provides enough lift, no matter in what direction or angle they move. So why can't normal plans in a critical angle of attack give full thrust to gain more lift? The air is the same everywhere in the sky. Why behaves the air different if we want to fly in an angle which is not parallel to the horizon?

@thesparkypilot 2 жыл бұрын

New student pilot here! Great explanation! I appreciate it. Thanks!

@CharlesIsPerfect 2 жыл бұрын

good luck buddy

@mrs.healer1776 Жыл бұрын

Used this video for my first grader, big hit! Thanks for the hard work on the video and putting out this content!

@Taidanaoineko Жыл бұрын

studying atm and this might help me improve during our ground school classes

@suleshangodoyin 7 жыл бұрын

It's an interesting lesson to learn about this subject with appreciation and always like the production-show at all time. Sule Shangodoyin.

@Completeaerogeek 10 жыл бұрын

Bernoulli also assumes that air is inviscid (lacks viscosity) which of course is not true. Boundary layer, critical for lift is caused by skin friction(form drag) and when it breaks away the wing stalls. Air is viscous and this accounts for much of its behaviour around wings.

@demonlama8916 4 жыл бұрын

I say it this way cuz it’s way easier to remember An aircraft has WEIGHT, to counter that weight is uses LIFT. When it has lift it causes DRAG, to counter the drag it generates THRUST.

@neoskyflyer 14 жыл бұрын

one of the best videos out there. from nil knowledge of aircraft aerodynamics to a general understanding right now. thank you.

@Rojoyerf 8 жыл бұрын

6:35 is either partly wrong or misleading, for the aircraft to lift off the ground the lift force must be greater than the weight force. For example if you apply 2N of force on a toy car from one side of a toy car and 2N on the other side simultaneously which direction does it move in? It remains at a constant speed (0). So if 20KN, for example, are being exerted onto the plane as weight and 20KN as lift will it go up or down. However if 21KN of lift is applied it compared to 20KN of weight the resultant force will be 1KN up. What I think he meant when he said the Lift and Weight have to be equal is that they have to be equal to stay at the same altitude without rising or falling.

@Paki9190 15 жыл бұрын

bro, bernoulli's principles is acting most during the lift, Pressure acting on the aerofoil hits the bottom of the wings and create's a downwash, The best angle for lift is 12 degree's , The pressure acting on top is less than the bottom on the wings while lifting, And the pressure at sea level is not the same as the pressure at high altitude so they need cruise at high altitude's. Hope it helps. Cheers

@shehimaliyah3816 4 жыл бұрын

Super clear and concise, automatically subscribed. 😌👌🏽

@kalebketchum7289 7 ай бұрын

Holds up in 2024 for the private pilot in training thank you

@amadexi 11 жыл бұрын

If thrust = drag, then lift < weight: the forward movement = thrust - drag. And the lift depends on this movement (because wings generate lift only when they move through the air). If thrust = drag, then thrush - drag = 0, then lift = 0. So in order to be able to fly, thrust cannot be equal to the drag.

@Ellexis 11 жыл бұрын

Rotate refers to back pressure on the yoke, which in turn causes the elevators to move; pitching the tail down and the nose up during takeoff.

@tpstrat14 5 жыл бұрын

Thank you for not trying to explain the intricacies of Bernoulli‘s principle. Jesus what a mess of a principle. How we ever figured that one out, I’ll never know. Very simple, easy to understand video. Very helpful to my pilot dreams. Thank you

@omarnaouf1802 8 жыл бұрын

my head is hurting so much, I really can't take all of this info in 7 mins

@iskoos 11 жыл бұрын

Yes but in helicopters lift is not a result of forward motion. You may consider "weight and lift" same for helicopters and also "thrust and drag" (if the helicopter is in forward motion) but helicopters do NOT need forward motion to create lift; lift is created by spinning rotor blades whether the helicopter is in forward motion or stationary. You may think of the rotor blades as wings. They have similar cross section and angle of attack (here it is called pitch).

@stefankozma 12 жыл бұрын

The other type of drag is Induced drag which is created as a product of lift by the wings. The weird thing about this type of drag, is it is actually greatest at low airspeeds with high angle of attack, and REDUCES, as the aircraft increases in airspeed and it's angle of attack decreases.

@waterattack 13 жыл бұрын

@Nebula485 Spot on! Bernoulli's theory is compensates for around 3/4 of the lift theory. Basically, the thing the 4/4 part is that the lower pressure air coming over the wing top hits the air coming under (basically tripping) and then it causes downwash. As newtons 3rd law states, everything has an equal and opposite reaction. So if you get downwash you get lift:)

@angelossakellariou2832 11 жыл бұрын

It's not the upward force that creates lift but it's the low pressure on the upper area (suction) along with the downwash at the trailing edge of the airfoil that create lift. The low pressure is accountable for the majority of lift produced. Take a plain piece of paper and hold it in front of your mouth, blow only in the upper area of the paper, and boom magic....lift is created.

@StrikerFin 11 жыл бұрын

At a steady airspeed, thrust will become equal to drag. Increasing airspeed thrust is higher. Decreasing airspeed drag is higher.

@selektaman9099 11 жыл бұрын

Thank God we here, on the Balkans (I'm BG) don't study simple fractions in the high school's last year. :D all the best to you, bro!

@sohailbarishams5574 3 жыл бұрын

Explained so many informations. Very nice

@salehamoghal1727 5 жыл бұрын

was looking for something to make project for my 9 year old on forces and bro this was awesome

@elisemuhammad3624 9 ай бұрын

I love the way he explained it.!

@kasimsaleem9238 7 жыл бұрын

oh my friend' ..it is really a great help for me i am satisfied by and now feeling that i now actually know how all forces act...thanks for this really helpful video

@evva1974 10 жыл бұрын

Keep them coming, we are never too old to learn.

@kunaljadav625 8 жыл бұрын

Awesome explanation. like the way you used the example of the 737 to start and end the video.

@uravshukla 8 жыл бұрын

That camera part was funny :D

@stefankozma 12 жыл бұрын

Not if its already moving. It just means its neither climbing or decending, not accelerating or decelerating.

@GiuseppePipia 12 жыл бұрын

Birds still have an engine: it's their wings that combine, in their movement, both thrust and lift. Plus, they could sense the athmospheric currents way better than we could.

@vigneshgk5334 9 жыл бұрын

Excellent Definition of Aerodynamics working method in flights.very useful

@stephanm.g.2111 7 жыл бұрын

Don't understand the down votes. Outstanding first (beginners) illustration of the aerodynamics.

@dhk117rp 12 жыл бұрын

drag thrust is the difference in pressure between the back and the front of the airplane. if the pressure is greater on the front, it the drag is stronger, if the pressure is less in the front, trust is stronger.

@newfiebullet6804 8 жыл бұрын

This really help me with me quiz that is tomorrow and it's all about what this video is talking about like drag and lift

@levewe 15 жыл бұрын

haha the camera fell..lol..best video dude....5/5...hope to see more from this channel

@TheC17A 14 жыл бұрын

the way lift is produced is not that particals pass over the wing or pressure's,which is only part of the story, the main part is that the direction of the after flow of the air leaving the wing, generally the air is force in a downwards motion off the wing and but newton 3rd law "for every action there is an equal and opposite reaction" therefore the downwards moving air pushes the wing up thus creating lift.

@winterka100 13 жыл бұрын

@gatorbuc99 You are forgetting about sailplanes and hang gliders. They use rising air for lift and gravity for forward movement. You probably knew that, though you did say "Under NO OTHER circumstances can the airplane climb".

@arthurthegreat216 12 жыл бұрын

@4fifty8 I’m a physics student (who uses his Christmas break to study theoretical aerodynamics) and I don’t see anything wrong with this video. It describes the concepts very superficially but that’s what it intends to do. The video was made for the general public with little or no knowledge of science. I found the link you were referring to and from what I saw, he didn’t commit any of the fallacies listed there. Why don’t you point out specifically at least one fallacy in this video?