Added: 2 years ago
From: GearDownFS
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  • Trust = drag? Then it is going to stand still? The trust has to be greater than drag all the time, aye?

  • Lift varies with both speed and angle of attack. If you understand the significance of angle of attack, you will be well equipped to comprehend many of the other fundamental concepts of aerodynamics.

  • Nice

  • Nice

    

  • Great vid mate !

  • I Love The Video It Can Increase My Knowledge The creator of this video allows full use of its contents for educational purposes.

  • Good, I like that you share this video, I wish success always The creator of this video allows full use of its contents for educational purposes.

  • This is not really correct. The air does not move- the wing does. The air is divided by the passage of the wing. A wing without an angle of attack and angle of incidence will not create enough lift to fly. The AOA is what creates the lift largely independent of the wing shape. A flat plate functions quite well as a wing (Just make a paper plane). Google NASA Incorrect Lift Theories

  • your rotating beacon isn't on!! shammme

  • This giant beast

  • Hetep, Most helpful tnx

  • video not horrible.. very basic.. angle of attack is very important.. as it effects everything.. would have been more helpful if he discussed it more.

  • @OrangestBoOsh Indeed.

  • im sorry i fell asleep....

  • мне понравилось. Очень понятное обьяснение аэродинамических сил

  • Awesome video!

  • thank you, I now know better about these 4 forces.

  • it really helps me

  • Meanwhile, in his office...

  • I'm a flight instructor and I would never show this to any of my students. The concepts in this video were very poorly described, completely incorrect, or only partially true. For example, the lift theory presented here is completely wrong. Check out what NASA says about it: search google for "incorrect lift theory" and view #1 and #3.

    There are many other examples of poor instruction here. I'm surprised that this video has such a good rating. It's sad to see aerodynamics being taught so poorly

  • @4fifty8 Can you please point out the errors in this video. I'm curious as to what they are because this is exactly how I learned about aerodynamics. I'm not questioning your authority or knowledge but I'd just like to know.

  • @3snowyman I sent you a message in reply. It's quite long! If you have questions let me know. 

  • @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?

  • @arthurthegreat I'd have to wager that you're a high school physics student. I don't believe this was made for the general public, the narrator made no mention of that. In fact, he infers at 1:20 that what he's talking about in the video is what pilot's need to know. The NASA incorrect lift theory clearly describes what he said in this video as one of the incorrect lift theories. It's not 100% wrong, but a bad way to describe lift.

    I'll send you a message with all the errors in this video.

  • @4fifty8 Lol, high school physics student... Why don't you point out a mistake in the video as I've asked you instead of talking trash?

  • @arthurthegreat Check your inbox. I sent you a message right after that comment.

  • @4fifty8 I would also like to know what was wrong in the video, so I can know before i learn more about the subject.

  • @4fifty8 I agree with arthurthegreat. I am considered General Public in this case and was enthralled by this video. Even if it has info @ 1:20 about what pilot's need to know, doesn't mean it can't be taught to the average person. The average person is not as dumb as you think they are. You're just "smart" in a different way than them.

  • @abhaywilliams I don't think anything should be dumbed down for the public. The way lift is explained to the general public should still be just as valid for teaching a pilot, regardless of how simple it is. The simple fact is that there are many false statements in this video. It doesn't matter who is being taught, it doesn't change the fact that they are wrong.

    I'll send you a message with what I found to be wrong.

  • Lol my class veiwed  this today

  • Do I have to say how much this helped me?

    Amazing my friend!

  • wow!

    

  • Nice!

  • Very good video. Nicely done.

  • thanks, made my sciences presentation a piece of cake :)

  • very good

  • Thanks this is helping me.

  • thx its helping my science project

  • @Boox911 Same thing here

  • dang it... i cant give thumbs up...

  • Hey, this really helped me alot to understand the aerodynamics of flight. I need to learn it for my training to become a pilot, and next week I'll have a test about this. I guess I will get an A+ thanks to you!

  • your amazing bro good stuff and funny with the cam i wihs my classes im going to take have hummor in them

  • @Gus7347 I hope your teacher starts you out with spelling and punctuation. Then that same teacher will make the obvious, horrid mistake of attempting to explain to you how flight is achieved.

  • no top comments???

  • Very poor!!!!

  • 5:20 Thrust must be equal to drag or equal to or greater than drag?

    Same for Lift & Weight..

  • What add-on did you use for the 172?

  • 4:23

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

  • @Atipatii The lift force HAS to be greater than the weight for the aircraft to climb. There's simply no other way. The engines pull the plane forward, the airflow over the wings creates lift. Under no other circumstances can the airplane climb.

    Now with military fighters and the space shuttle, thrust is used to overcome weight. But those fighters can only sustain it for so long and the Shuttle at that stage is not really flying.

  • @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".

  • 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

  • Fantastic video I will be showing this to my students 

  • @airmagnet27 and i hope u r my teacher 

  • Thanks helpfull illustration!

    

  • To be able of flying by airplane is simply amazing. I'm in love with physics...Thank you to all the great scientists wherever they are right now, they will be forever respected and admired by all the mankind

  • very nice video but you forgot to mention angle of attack of the wings (angle of wings compared to air motion) as you might noticed the lift is not enough to make the airplane fly until the angle of attack is increased, then the airplane is flying and hence can increase speed even more and gradually after a while it moves fast enough to produce enough lift to make it stay in the air horizontally.

  • @billkoumparos the angle of attack is not a force; is just like it says "an angle" that determines the direction of the lift force; this direction is perpendicular to the flow of air

  • @gnmris890617 i didnt say that it is a force i just meant that it is proportional to the lift and hence during take off the pilot increases the angle of attack and hence the lift is able to take the airplane off the ground.

  • 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!

  • yeah thats great but can anybody tell me where I can find the math of that? i want to see the derivation of the bernulli equation and then its application to an airplane wing..

  • very nice. but you missed to mention the corresponding part thrust.

  • nice explanation, thank you!

  • Comment removed

  • @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:)

  • Good video. Thank you.

  • used this to explain aerodynamics to my son - improved my own understanding in the process - great explanation! thankyou

  • @Nebula485 How did you come to that conclusion?

  • A little background music wouldn't hurt

  • bravo

  • Great lesson

  • merci

    

  • if i find 1 chemtrail in this i kill this game

  • great !!

  • COOL

  • oh BLEEP

  • NERD

  • @nnjjiittss yes nerds build aircrafts so u stupid fucktards can sit ur arses and travel across europe in 3 hours

  • @ahriman46 it's not about scientist, it's about how the way this is told, how this is brought to the viewers.

  • @nnjjiittss bitch

  • amazing

  • GOOD EXPLANATION GARTH,,,,,

  • Thumbs up if you could actually understand this.

  • great instructional video

  • u need to speak louder D:

  • nice clear narration,high and low pressure effects on wings now fully understood..thank you..

  • Very good guide!

  • thumbs up if u play this game with Saitek x-52 pro

  • You did your friends proud Matt. :) thumbs up!

  • How do you play this game??????????

    JH

  • wow matt

  • wow that was a great video!

  • @XxOpTiCsxXPs3 Nice matt.

  • lift

  • ultimate!

  • Fantastic video. but what is it that makes the relative wind pass the upper side of the airfoil faster than the bottom side?

  • @TheDartFart the shape, or strategically places screws !

  • @TheDartFart

    lower air pressure

  • Thanks, Garth! Your video really came in handy!

  • STRAP THAT CAMER- OH S*&@!!

  • nicely done bro although your narrating could use a lot of work

  • Hi all, this might help to dispel any myths about lift and any over emphasis on Bernoulli. The pressure differential is a secondary effect of turning flow not the primary cause of lift. In fact Bernoulli speaks of a streamline flow which is not an accurate description of flow around a wing and does not consider the boundary layer. If you own a ceiling fan the breeze you experience turning flow and the force that keeps aeroplanes up.

  • When doing side shots of the craft, turn the strobes off. O_o

  • dud your video was greatly appreciated i am an instructor at embry riddle and was looking for an easier way to get through to students how bernoulli's principle works thank you.

  • @ottowatler Why don't you take two bent pieces of paper and blow between them? The air speeds up and pressure is lowered.

  • great job!..thanks a lot.

  • very simple and informative. thanks

  • this helps!!!!!!!!!!!!!!!!!!!

  • Dreg?

  • OK but if I built my own plane how can I measure all 4 Thrust + Drag +Left + Weight What is the basic way, Thank`s for who answer that. 

  • @ramthawi first of all, there's a certain why you MUST build you aircraft.

    you can find that in CARs ( well here in canada) .... and believe me that's gunna be hard if you have no knowlage whatsoever of aviaiton, if you do..then well it's still a changelle! then you must subuite a certifation of airwrothness for a flight permit, and get approval of a test flight, if you pass all that..there's a long process inculding mantoary expections by Aircraft Mantaince Engineers& so forth.

  • This is an amazing video, helped a lot for my physics student designed project. Thanks!

  • good vid! :)

  • dreg? its drag.

  • very nicely done video, although no reference to Newtonian laws.

  • do u mind me using this as a reference for my project...great vid by the way

  • This is a really bad explanation of lift and for the most part, incorrect. The majority of lift produced by the wings occurs 'on top' of the wings, as the dynamic pressure sucking upwards is a greater force than the static pressure below.

  • i like this explanation! could you make more of this type of vid thx!!

  • 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.

  • @TheC17A No, Newton's Law only produces about 20-30% of a wings lift. Bernoulli's Principal accounts for 70-80% of that lift. If you lose Bernoulli's principle, the aircraft just falls out of the sky. A great example of this is a stall. Bernoulli lift has been almost completely lost in a stall, leaving only Newtonian lift. So if what you say is true, then, stalls wouldn't even exist.

  • @ysflightman Actually, both Newtonian lift and Bernoulli can explain virtually all lift. The issue is that the explanation used with Bernoulli is usually wrong not the mathematics. In fact, and according to NASA, lift is created by turning flow. The erroneous explanations of Bernoulli usually revolve around the shape of the wing being curved on top and flat on the bottom. Of course many wings are symmetrical or even opposite. The pressure differential is a secondary effect of turning flow

  • Thanks man you really help a lot on my 7th grade science project!!!!!!!!!!!!!!!!! :D

  • you should say, thrust>drag= speed up, thrust<drag=slow down thrust=drag=steady speed.

  • ok i thought the flaps is what gets the plan up or down

  • I don't think you explained how an aircraft actually flies. You just explained the aerodynamic forces that act on an aircraft. You should have mentioned how the shape of the wing, were the upper surface of the wing forces air to travel a longer distance while the lower shorter and the relation between velocity and pressure. So air has to travel further distance above the velocity is higher which means the pressure is lower. High pressure below and low on top creates lift. Great video though =]

  • great video...really informative! :)

  • Nice, what else do you have?

  • hahaha very good =) Like x Like.

  • Cool!

  • Very good

  • Its very nice, how about paper airplanes? and you added a paper airplane with an airfoil it would fly greater? how about the ones without the airfoil how come they still fly and glide? Its a question i never got an answer by myself

  • I needed this for some school work on how planes fly. this vid realy saved my ass.

  • I think you should have used flaps on the 737 at take off. Nice video BTW

  • 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.

  • Nicely done video, but this is the first time I've ever heard "drag" pronounced as "drig".

  • Comment removed

  • air is a fluid?

  • @xide3 sure is

  • @Diarmuidp07 last time i checked air was a gas...

  • @xide3 A fluid is not necessarily a liquid of such, but it can also be gases, a fluid is a substance that deforms under stress. google it if you don't believe me haha, I'm studying in this subject

  • @Diarmuidp07 true i beleave you just a weird word...

  • lol, oh ----

  • i hate to burst people's bubbles , but it's extremely more complicated more than this elementary stuff albeit , very useful

  • Great info. 

  • flight simulator  nice!

  • Awesome!! Thanks so much!! :) It was really useful!! :)

  • thanks a lot dude....u just made it so simple.

  • Wow amazing work man... I even said better than my instructor, lol!!!

  • wow, amazing job!

  • hehe oh BEEP!

    good video :)

  • Haha the camera:D

  • how do u get all those different views

    i dont have them

    is it an add on or something?

    like for example a view of the wing and engine ( turbine)

    thanks

    nice vid

  • awesome... what kind of flight simulator did you use?

  • thrust MUST be gratter than drag same with weight

  • dreg

  • thank you for the video

    i've got a presentation and this one help me a lot

    so thank you again

  • great vid mate

  • LIKE

  • Great video! loved it! It helped me so much with my school report. Thanks so much!

  • Haha

    Nice editing :-)

  • GReat video. Thanks!

  • what software did u use to create this video?

  • haha good video, educational and interesting to watch. well done :D

  • kk cheers for the info m8 i subscribe

  • Mate just a constructive comment. You didnt use flaps on your takeoff! This could result in lack of lift and you could stall. But great vid!!!

  • @JustCause2Ps3

    you dont need them down on the take off, only on short and soft field take offs.

  • really great vid! 5 star!!

  • Sorry about your camera....

  • Haha, thanks. It's easy to replace in FS though, lol.

  • Thanks for the comment. The graphics card running behind this video is the XFX Nvidia GTS 250, a 1gb card. perfect for FSX and other applications.

  • Remember this: an airplane is not an airplane, without its wings.

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

  • Thank you, that's our goal!

  • Comment removed