How do Airplanes fly?
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- Опубліковано 22 чер 2024
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Modern airplanes are truly engineering marvels. They overcome highly turbulent and unpredictable currents in the air and complete their flights by undertaking many complex maneuvers. Have you ever thought of how the pilots are able to achieve this, or what happens to the airplane when the pilot operates certain controls? In this video, we will explore how an airplane flies, and how pilots are able to control an airplane in a logical, yet simple way.
Voice over artist : www.fiverr.com/voiceonthemove
The reason for the lift generation is not Bernoulli's principle, it's Newton's 3rd law. ua-cam.com/video/w78JT6azrZU/v-deo.html . More specifically, apply Newton's 3rd law on down wash produced by the airfoil shape. Please watch the Airfoil video by Learn Engineering to understand this concept completely.
Downwash causes INDUCED DRAG by tilting the relative incoming velocity vector by an induced angle of attack and hence the lift also tilts backwards, creating a small yet measurable horizontal component. Lift is caused by the pressure difference between the top (suction side) and bottom (pressure side) of the airfoil, creating a net upwards force. Bernoulli's principle and it's equation is probably the most misused in all of engineering.
Flaps and slats are set to the correct position well before it ever enters a runway.
The animation used here is a good example of a 'lie-to-children,' where the explanation is so overly simplified as to be just plain wrong.
The pressure differential between the bottom and top of the airfoil _does not_ create lift. Period.
Waseem Hashmi you misunderstand this. When a fluid flowing past the airfoil, it exerts a force and lift is a component of this force. The airfoil exerts a downward force on the air, according to Newton’s third law, an opposite force exerts upward which is the lift. And also how do you explain Newton’s law applies for helicopters but not airplanes? What’s the difference between the airplane’s wings and helicopters blades? The same law applies to both of them, the difference is the blades have to turn to go through the air. Give the blades an angle just like we give the wings of the airplane to create that lift.
Waseem Hashmi I would say Bernoulli’s principle applies also because it creates that pressure due to the speed of the air. Newton’s third law also applies because the lift is an opposite force of the downward force that the airfoil exerts. I’m in Electrical Engineering but I do understand physics, if you are in mechanical, please explain to me the difference between the blades and the wings. The speed of the air through the blades also creates pressure according to Bernoulli. Force(lift) is also an opposite force of the downward force. Please explain this to me.
Always amazed by this technology! And huge respect to all engineers!
Even now i m amazed after seeing them all over and around(sorry havent been onboard bt they exist🤲) again
Amazed I was interested in amazed
Wher do you live at.
Making new technology is the work of mechanical engineer then why are respecting all engineers
@@yashrajmahat7961 ?
I was feeling a bit down tonight. For some reason watching simple, informative videos like this is comforting and brings your spirits up especially watching it late at night :)
It really does specially space videos
it's been 9 months, I hope you are feeling better
Couldn't agree more
Couldn't agree more!
@@aching7245 thought it was just me 😂
I've flown more times than I can count, and yet, every time I get on a massive jet, a part of me isn't quite sure that those engines can get that monstrous metal tube off the ground. And yet... they never fail.
what intrigues me more is how it can produce so much lift to take off from the floor with so much weight on.tons of weight
@@stefanbjelic 🤣🤣🤣🤣🤣🤣
@@georgesantos-jt6me let alone passenger planes. What about those carrying heavy military weapons ua-cam.com/video/9XyWq7cC7qE/v-deo.html
It really the same feeling here… fascinated every time during take off and landing… always try to get the window seat next to the wings
They’re not monstrous. They’re majestic and beautiful
Flying in 2022 is so commonplace many don't awe in the beauty of how amazing flying is, the whole concept of a machine design basically as a bird to get you to places quicker. I will always be in awe of Flight...
Trust me mate, EVERYONE is wowed by a huge metal object flying at super sonic speed
It all started with an idea, then the maths and physics refined it to its present form.
I was trying to understand and then i decide to just be a passenger 😂🤣
😂😂😂😂
We're in the same WhatsApp group bro🤦🏽♂️
😂😂😂😂😂😂my lungs
🤣🤣🤣;;
Me tooo 😂😂😅
I wish I had this video during my undergraduate Avionics degree that I completed in 1991. This video basically covers Aerodynamic 1 and Aircraft stability without the partial derivatives.
Everything you learned in a month put down in minutes 😂😂😂😂😂
You just wanna brag.
@@franchisefred4066 the comment is dumb, probably understood because of the bases in physics, also calculating to safe limits of a plane truly needs math
@@sace1608no
This is one of the best explanations that I have come across.
U from karnataka??
Unfortunately it muddled some of the most important details, that I wish to share. If you don’t are that’s fine, but I love this subject!
There is a fallacy contained within this video that I wish to correct, in that the downwash is not what causes lift. The simscale animation played just after this that was claimed to support this actually shows it: lift is NOT caused by downwash behind the wing, but rather the pressure difference above and below the wing that causes the lift force over the area of the wing.
It is correct that the downwash does provide an equal and opposite force reaction pair to help with lift, but those of us studying airfoils know this video misses some crucial details like those explained above.
Additionally, if lift was only caused by downwash as was surmised, there would be a moment caused by the downwash force at the back of the wing that would rip off the flaps or cause the plane to tilt forwards. Thankfully, downwash isn’t the main force. Fluid flow causing pressure differences produces a center of lift about a third of the way back from the wings leading edge (simplified explanation) leading to a well balanced plane.
Flight truly is fascinating!
@@Mobius118 plz explain some more missing points. Also could you elaborate on how would downwash break the flaps at back of wings or cause it to tilt forwards.
me too but i think i have to rewatch it for over 3-4 times more hahahah
@@chinmaybiradar3288 I think the most important thing that they left out is meaning of horizontal stabilizers and pitch trim (small "wings" at the tail.)
Because the center of gravity is always in front of the center of lift it will always try to push the aircrafts nose down. Horizontal stabilizers are there to counter that force. They have the same air-foil shape but are installed upside-down because they need to push the tail down not to generate lift.
The location for center of gravity ofcourse depends on how the plane is loaded (bags, cargo, mail etc) and how the passengers are seated. The further upfront the COG is located, the higher the angle of attack there needs to be on horizontal stabilizers. Pitch trim is used to turn the entire stabilizer, not just elevators.
There are lots of great videos on this subject. Try searching Mentour Pilot or Captain Joe if you are interested about aviation or how aircrafts work.
Definitely made me appreciate what airline pilots do even more than I already did. Thanks for the info. Learned quite a lot of information about airplanes I’ve always being curious about.😊👍🏾
It's the Engineers who do the harder work. Pilots simply learn to use it. Engineers design and repair it.
@@ordenax Well duh!
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and do your complex CFD and FEA analyses using your normal laptop or PC for free of cost.
SimScale for the win!
I've flown a thousand times and each time is an amazing experience.
Airplanes, pilots and tower controllers are the greatest human intelligence, every time we take of i always close my eyes don't wanna see the take off lol.... while i say some prayers too, but these pilot do this take off, flying and landing like its nothing, wow!!!... They are my real hero 😃✈ 😃✈😃✈
How many times you've been on a plane?
@@vizeath wow I can’t count, been to over 35 countries multiple times
@@fmspec damnnn man, I had just been on a plane twice and I already got a trauma ....
@@vizeath once😁
@@vizeath me too..they say your chances of dying are greater traveling to the airport..i dont believe it!🤣
The 3D animations of this channel are really awesome and these animations show us the process with more detail and making these videos is not such a easy task...
they for need
I used to wonder "why don't that big metal bird just fall out the sky" but now I know better
Seeing all the principles from different course of study come together to achieve one goal is so exciting
I’m 36 yrs old and for the first time in my life, last August I ride a plane at first I was worried and after that I just enjoyed the journey. I enjoyed being on the plane. 😊
This 8-minutes video solved all my doubts about an airplane flying. Thank you!
Flaps are activated before the takeoff, not during it.
Dějiny the runway is literally a road too lol. The center line is not supposed to be yellow🤦♂️
In 6:05 he talks of the lift generating `centrifugal force` which is a fictitious force (if he wanted to explain it like this he should have said `centripetal force` instead). He could have just said that a component is pointing to the side which would have been easier to understand.
What this shows is that he definitely simplifies things (sometimes oversimplifies them), but still for an average user it is okay. I don't expect a pilot watching this video to neglect his take-off-checklist the next time ;)
I'm no pilot but are the flaps supposed to maintain flight at low attitudes and low flight speeds.
Yea, the pilots usually extend the flaps and slat right after pushback or during taxi to the runway. But I get it, he's trying to show how the parts work during flight.
Yeah that made me mad lmfao
Can't wait to go on my flight back home in 4 days so I can observe the things I learned! I absolutely love planes!!
One of the best inventions, an invention which changed the world, an invention which eased things, an invention the beauty of which cannot be described in words. Huge huge huuuuuge respect for people belonging to this industry.
Profuse thanks to all of you ❤
I’m taking my pilots license test tomorrow and I haven’t studied so this is perfect 👌
Wheeler Visuals good luck
Did you pass bro?
Sean Bryant with FLYING colors LOL
Wheeler Visuals good shit man congrats! Go celebrate.
I am sure you will get license, but for the god's sake Don't mention the name of learnengineering when someone comments on your piloting skills...😀
I always wondered about about the principles of physics with Flight Movement since my first flight journey and truly an outstanding contribution by the Engineers to the mankind. Proud to be an Engineer.
I was taught that the airfoil shape of the wing causes air going over the top of the wing to go faster than the air underneath. This low pressure causes the wing to lift up. Take two pieces of paper and hold them parallel in front of you hanging from your fingers and about 2 inches apart and blow between theme. The air passing between them causes low pressure that causes the papers to be pulled together, not apart. That's the wing principle. Wings are PULLED upwards not PUSHED.
bro pushed by pressure difference from bottom to upwards
A flow accelerates when it experiences a convex curvature. As the upper surface has more curvature the flow is accelerated more than the lower surface, causing suction.
A big salute to the engineers and the pilots
A friend tried to explain how planes fly, but it was Way Above my Head 😂
Pun intended? lol
@@jordynp942 : Affirmative 😀👍
nice one 😂
@@jordynp942 : ThankYOU , and yes, I did think it up! 😂
Lol
Always wondered how these giant machines take off, change directions or lose heights. So thanks for sharing such knowledge.
Lesics, I admire your intent here and the video is very well done with a right balance of "keeping it simple" for the grander audience. Unfortunately, though, it is filled with inaccuracies (and I don't mean simplifications, like you did with lift generation, but things that are plain wrong, like during the climb as long and the thrust is greater than the drag the speed will keep increasing, and others) that are not necessary. The video could have been kept equally appealing, beautiful and simple by correcting these things. If you ever happen to see this comment (unlikely) and are interested (unlikely), feel free to reply to this comment (I always monitor my comments for replies).
I live in a place where the planes landing and taking off from Chandigarh airport always flyover. I have also flown many times, national and international. But I had always wondered how the engine power was transferred to the wings and how it kept the plane afloat. Everything very clearly explained in this short video. Thank you.
It is important to note these mistakes in the video- 1) Flaps are lowered before takeoff even starts. Even as early as directly during are after Pushback from the Gate. 2) The Flaps+Slats are lowered less during takeoff because if they were lowered all the way, it would create too much lift and the Airplane may stall (For anybody who does not know what that means, it means that the weight of the aircraft is becomes to much for the Jet engines and the plane basically falls out of the sky). They are lowered much farther during landing because the low levels of thrust to reduce speed for landing is not enough to keep the airplane in the air so the Flaps+Slats produce enough lift to keep the airplane in the air long enough to get to the Landing Strip. Science
True
How do you know if there's a pilot at a party?
He or she would have told everyone 🙄
Why do the back wheels touch fbe group first?
so the plane can land
@@8941065 control
Thanks for sharing. It increased my knowledge.
shamayal ramay same here bro i was so interested and i find this usefull
Came here because I’m reading a biography of Leonardo Da Vinci. Leo observed how birds fly and the book quickly explained how birds and planes fly. I wanted a visual and deeper explanation and this video greatly illustrates how planes fly. Thanks you for this great video.
Having just recently boarded a plane for the first time, i was absolutely amazed by human ingenuity; engineers are among the most intelligent human beings on this earth
This is the most important video i v ever seen in my life. i have been working for an Airline ticketing and check-in but had no idea how a flights fly
Senzo Mavini I hope you can become successful
7:24 ryanair landing.
Altitude callouts like 500-100.10...boom
lmao "alright folks we are headed for touch dow-BANG
Real life : "tires popped"
And Ba Ding Ow
For real haha
One of the best toturial that i've ever seen.
Oh god I'm so excited now after viewing this video. Not only the topics discussed but the demo aircraft used - such a good choice. Of course knowing that there are certain constraints I would have loved to hear more topics explained in detail! Maybe another or few follow ups yes!! Thank You!.
This was so well explained. No need of further explanation because everything is covered regarding Taking off and landing
No no he did not talk about flair you need to flair on landing and he did not explain about stalling
3:42: pilots don’t extend flaps during the takeoff roll, they would extended it way before that (it’s in their checklists more than once just to be safe) - if they started their roll without the flaps they would get a takeoff config warning for which, if I’m not mistaken, the answer is to reject the takeoff.
Thanks sir🙏
Well some pilots know better ua-cam.com/video/fBKpi0PwBd4/v-deo.html
I was amazed after watching this video... with simple techniques the flights are flying
hats off to the engineers ...🛩🛩🛫🛫
This is really more of importance especially to the under activation OR those whose passion is aircraft engineering....Am also one of them and am actually going to start on my practicals soon in December (if all goes well)....and I would kindly request for friendship From any of you especially the air craft engineers and my fellow who could have the same inspiration
*Very interesting I had to rewind and play the video again and again to understand more thank you!*
I'm confused why people don't understand I'm just a 10 year old and I already know about this
@@crowyxl1563 Thank your God for making you a bright boy😊
Thank you🤗
Thank you-I learned something about flight when it comes to jetliners!
I've never realised how amazing aeroplanes are, just how they work is so fascinating ! I wanted to know how planes fly, and this was extra amazing! Thanks so much for explaining, and just how planes are even made are even more amazing. Thanks so muchhhh
Best video I've come across till date on GPS.. Understood the concept for the first time after going through multiple videos! Thank you so much!
Thanks for quenching my curiosity.
İt exactly was thing what I wanted. Thanks for your explains its so useful, good work .
ultra realistic flap demonstration and amazing tailstrike
I want to say thank you for your amazing work. This is really astonishing.
Thanks Learn Engineering,,,, For Effective Knowledge
I found the use of elevators, located on the back wing, near the tail, as just the missing part in my understanding of how the planes lift up the ground during take-off. Thanks for the nice explanation.
OMG! Thank you so much for the info it's very helpful :)
Can you please kindly tell me the barber’s name and address that had given the pilot that haircut? That fade is on point! 👌🏼😂
😆😆😆😆
Awesome video guys. Very good video explanation with an awesome animation. Loved watching.
Fly by wire is a great technology. If added more CFD simulations this would be more informative. Specially of wings
Wow. Amazing video and huge respect to all the engineers.
Amazing illustration and explanation. Thank you!
This makes me proud to be a human
Feking joke XD
Thanks for the tutorial. I'm ready to fly a 737 Max 8.
MCAS has entered the chat
isn't it 787 though
Lol
@@epicgamer9295 the Palme in the vid is a 787-8 bc of the nose, cockpit window shaggy was saying this so he can say that since he watched this vid helped him understand how a plane shaggy mentioned (737 max witch is dead) and the 787in the vid
@@ayumiyamaguchi3773 oo thanks for the clarification
Thank you for knowledge. 😊
You guys are doing amazing animations.
THIS VIDEO is MAGICAL 😄🌬📚lol thank you indeed
Magical?
What do you know about magic, Muggle?
Literally always wondered every time I’m flying, just got off a flight yesterday flying from three different airports and wondered how these jets lift off and fly in the air.
Great video. I like your explanation of the pressure differences causing a lift force. I would of liked to see how newtons laws and circulation play affect into causing lift since pressure difference is only a small part of it.
Thank you for this, now I know that the yokes or joysticks doesn't move the whole plane but instead they only control the ailerons and elevators that moves the whole plane
Very interesting... i have been rewinding and replay as many times as i could to have a better understanding. Greetings from Namibia Windhoek.
wow that's amazing, i finally understand. thank you for explaining it so simply and with all the animations! it's truly ingenious
By far, one of a great video to understand airplane fly quite simplisticly.
Top marks for such informative video. It answered questions I had about the Airfoil and reverse thrust. Well done.
This amazing human power of thinking 💭💪🏽 Love this doco ❤️
Fluid mechanics..... Thanks so much for the great explanation.
Thank you very much for making this video. I really wanted to understand this mechanics.
A small but crucial correction at 3:41, the slats & flaps are extended before the takeoff roll.
Not all the time ua-cam.com/video/fBKpi0PwBd4/v-deo.html
@@Boss_Tanaka ahh yea, I was referring to a ideal scenario. Any plane would be able to lift without flaps/slats as long as there's sufficient runway to attain V1 and V-climb speeds providing the environment supports it :)
Please make a video about how a computer works .. Or make a series. .
Great explanation ,,,Thanks a lot 👍
thank you for good expression. also, the animations made it very easy to understand.
So... Magic. The answer is magic.
*Imagination*
Physics + thermodynamics + more stuff
Well, aerodynamics
This is all a really elaborate way to say "plane go up cuz magic"
Thanks for teaching us! ❤
மனிதன் கண்டுபிடித்த மிக பெரிய அதிசயம் ஆச்சரியம்.. விமானம். அனைத்து பொறியாளர் க்கும் பாராட்டுகள்
5:40 Centripetal Force, there is no such thing as a centrifugal force. "Centrifugal Force" is a fictitious idea that is used to describe the apparent outward force on an object in radial motion. Centripetal force is the actual force that causes an object to travel in an arc.
Thanks, the comments section is much more better than the video itself
Doesn't matter as long it's consistent and useful.
Gravity is a fictitious force. Curvature of space cause two object to move towards each other. So gravity is not real.
You're right, I was about to point this out as well. Centripetal force is the force that makes an object travel in a circle. It will be the normal to the plane's direction of flight, towards the centre of the arc/circle, the plane is turning. In this case they used the wrong term.
"there is no such thing as a centrifugal force"
xkcd.com/123/
Centrifugal force is just as fictitious as gravitational force is. Just because it is fictitious doesn't mean it can't be used to describe something. But the video is definitely wrong in this case, what they show is indeed centripetal force.
This was such an informative video and I never expected the mystery behind this was such a simple physics
Incredible for begginers. Thank you!
Thank you! This was very helpful and informative.
Flaps are applied before you are on the runway
3:40 lol you don't extend the flaps/slats just moments before pulling up, you already have them adjusted before starting the take-off roll.
Reply you
Gosh !!! never thought physics could be this easy and aerodynamics could be a cake walk. Good work. Thanks for this great video
Look up the Navier Stokes equation and tell me aerodynamics is a cake walk again 😂
This video is so informative and it's presented in a way that's easy to process each bit of information
Sir,please explain about solar panels.🙏🙏🙏🙂❤️
Please can you make video on how mobile tower antenna works
It's simple not complicated...
Table tennis in russia
7 table tennis in Russian
Neat video! These basic principals apply to all airplanes, from a styrofoam RC plane, to a Boeing 787 (in the video)!
A couple nit-picky corrections; airliners use flaps to increase lift at low airspeeds for takeoff and landing. They bring the flaps up when they get going fast enough.
The flaps are extended before the plane even gets to the runway, not during the takeoff roll.
In a turn, we neutralize the ailerons once we get to the desired bank angle, and then have to actively roll the opposite direction to stop the turn.
As shown, lift is split into a horizontal and vertical component. The vertical component is reduced in a turn, so we also have to use up elevator to increase AOA and keep from descending. This results in a G load depending on how steep the bank is.
This is the perfect video I was looking for . Thank you
While i was in aircrew training, i did a simulation to try to actually fly the plane. lmaoooo i suuucked ass. Pilots have impeccable precision lol
Wow, they teach stewardess how to fly? WTF, didn't know this was a thing - must be some new requirements.
I always assumed it had something to do with the wings.
👏👏👏👏
Now wish I had paid more attention in physics class. Wish teachers would show how science impacts everyday life , then Amrrica may start producing more scientist, drs. ,engineers, instead of reality stars, social media influencers, and hip hop entertainers.
Great video I totally understand how it works . Thank you
Those 590 people who disliked this description which is so accurate and understandable..come on guys..get a life..that was an awesome presentation
its just bots my guy
Basically, it's a kind of magic -- like everything else in the universe.
not really but i would agree
It's called SCIENCE!!!
Did you see any magic at all? NO.
@@antoniomontana5778 the more I see what science can do the more I believe in magic lol, take for example the phone I'm typing this from, it's like a mini computer more powerful than the first computer that took up a whole room.
@@unknownx7252 I am a first hand witness to that!!! When I was in college, there were no cellphones or internet. I had to do my computer projects at the mainframe computer in school, because my PC didn't have enough space in its harddrive to install the COBOL language I needed to write my programs.
At that time, we talked kilobytes, just imagine!!!
Thank you for giving us good knowledge. I really appreciate.
I was curious thank you, very educational.
Pilots pull the flaps to full when landing btw RIP Tailstrike