How does a Helicopter fly?

[@Lesics]

Dear friends, Please be a supporter of LearnEngineering. We can provide you more awesome contents in the future. www.patreon.com/LearnEngineering

[@StrelitziaLiveries]

Learn Engineering such cringe Ever heard of vtols? Also "airfoil **technonolgy** " is cringe Is called "bernoulis principal" (Might have butchered the spelling tho)

[@BrunoPOWEEER]

Learn Engineering thanks for another FANTASTIC engineering video!!! I'm sharing and spreading the word bringing more people to your channel... possibly new Patreon supporters =]

[@shamimarokeya1691]

Learn Engineering anything new now

[@nomesobrenome2133]

Learn Engineering legends in portuguese, pls!!

[@jennifervillafuerte9585]

Learn Engineering m

[@user-74652]

You really have to appreciate the genius of the people who invented the helicopter. In a way, they are more fascinating than planes.

[@FlyLeah]

Im a plane fan and i can confirm this

[@fitrianhidayat]

@@FlyLeah I'm a plane propeller and I can confirm.. It's inefficient though

[@_phase_runner]

Sikorsky. Google.

[@robertbrandywine]

Arthur Young. Google.

[@fastpacedcheese]

yup 100% agree

[@علاءعدنانمحمودشكور]

This quarantine made me learn a lot of things . From autopsy to aeronautics

[@Hambxne]

next stop quantum gravity

[@rektigt7673]

Cars Aerodynamic, Guns mechanical physics, Engines ,.. those are interesting to check out xD

[@njugunakahiba3401]

Same bro

[@gta4haterhq]

yep same here

[@FrazAhmadMD]

Oh rehn de bahi bara quarantine kia hoga ap ne Pakistan mein

[@feynstein1004]

Now I understand why learning to fly a helicopter was so hard in San Andreas.

[@andrewryan6148]

Feynstein 100 lol it was easy

[@feynstein1004]

+Andrew Ryan You found it easy? You're definitely the exception, mate 😂

[@farhansiam7873]

that was my last mission :P

[@feynstein1004]

+Ahmed Rafid Farhan Lol really? You missed out, man.

[@asherjunaid7847]

You talking about that helicopter mission in gta iv.

[@nathangraham7991]

If you ever stressed about trying to please everyone remember over 2000 people disliked a video that explains how helicopters work

[@bluefish9283]

that is a mystery why people dislike this types of videos

[@PRMarshall]

If you’re ever stressed just know I have present how drive systems work to a bunch of pilots who know wayyy more than I do, I’m gonna look stupid as shit

[@AssassinDl1]

@@bluefish9283 They are armchair rocket engineers with their own research facility in their basements. In short, they are "Fucking Nullwit Dunning Krugers"

[@jayscott8583]

@@bluefish9283 people who actually work on and fly them.

[@andrewdoesyt7787]

@@jayscott8583 I have no idea who or what your responding too, but I assume if you work on a helicopter, you know how they work...

[@gauravsharma1636]

This explains why the RC Helicopter mission in GTA Vice City was such a pain in the ass

[@San_Teeee]

it couldn't even rotate

[@AshishSharma-iy3di]

Demolition Man 🔥

[@durgalohe2027]

@@devilterminals7039 10 years ago, in 2010 I played, me and my friend completed that mission . It tooks us 2-3 hours to complete that mission , but we never give up..... I can't believe that I still remember that day... That day is the happiest days of my life

[@durgalohe2027]

@@devilterminals7039 yeah but it's been 10 years for playing vice city.... that is the most difficult mission in whole vice city.... I feel very happy for completing that mission

[@Ritik1876]

I had tried to complete mission 4 days...and finally I had completed it...

[@hypernauta6909]

The mechanism of the swash plate is so ingenious and elegant, i almoust cry looking at this video! BTW thanks for such a great content!!!

[@coollasice4175]

Igor Sikorsky?

[@Lesics]

We are happy to know that :)

[@wobblysauce]

And quite reliable.

[@pedobob863]

Curiomatía well said

[@sardhakchintaman]

Liked the video the moment the swash plate was explained!

[@laxmanmarvadi1607]

Me: going to bed KZbin : heyy! Wanna know how helicopter fly

[@Anonymous-nj6of]

GG's

[@thedepression950]

me: goes to bed my brain: are you sure you dont want to learn how helicopters fly?

[@Ritik1876]

I am about to sleep right now 😂

[@poke_champ]

Channels like this need a new platform. Great content but KZbin is hurting channels like this with their algorithm

[@TheLastPhoen1x]

FIDGET SPINNERS PRANK GONE WRONG!!

[@payneinthebutt3098]

GONE VIRAL, GONE SEXUAL, CALL THE COPS!!! ✔

[@prighwaitnaamee2193]

***THE PILOT TILTED THE SWASH PLATE AND THEN THIS HAPPENED!!!***

[@looksharp]

this one got me :D

[@Tsukuyomi28]

Prighwait Naamee GONE SEXUAL

[@user-od9iz9cv1w]

I understood how the rear rotor and swash plate controls worked. But this video gave a glimpse into how difficult it would be to gracefully control a helicopter in practice. Then throw in variable cross winds and it must be a brain twister until it becomes second nature. New respect for these chopper jocks who do the amazing flights.

[@BazamO]

Incredibly complicated engineering, had to watch a few times to fully understand everything going on. It's truly amazing.

[@davidtlchow]

As an engineer, we all have the responsibility to carry knowledge to our next generation. Thanks for creating this video. A very good material for beginners and kids! Thanks.

[@easy_hai_bhai.]

This man literally wants to make me scientist ...my curiosity is increasing day by day 😂😂

[@giantlabs]

RIP Kobe

[@flowersandcandyflowersandc9093]

A helicopter was not needed for transportation to a kids basketball game, SUV services should had been utilized. Why the rush.

[@3ossomok588]

Nigga ! Hhaajajajhahaahahahahahah

[@3ossomok588]

@@flowersandcandyflowersandc9093 exactly, that was my point

[@flowersandcandyflowersandc9093]

@@3ossomok588 You made an excellent point........

[@victorcastrellon2724]

flowersandcandy flowersandcandy fast travel. Traffic is terrible in LA

[@damianomartucci9814]

It's incredible! There are years I tried to understand some things explained here, and these are told in a very simple way. Congratulations, great job ☺

[@BES-PK]

kzbin.info_dd3jSNlIGk?feature=share

[@NicholasRoge]

I love the videos, but I'm still genuinely very confused as to whether the narrator is a real person or not.

[@bjornroesbeke]

Either way, it's much better than the narration in the first videos.

[@jsmith5052]

Nicholas Roge Pretty sure it's robotic. The people who make these videos are engineers from IIT I think and would have an Indian accent most likely. Also the robot mispronounces things sometimes, like "Patreon." Whatever software they use is pretty solid, though, I don't mind the voice at all.

[@jamesmichaelcabrera9613]

funny

[@rhcrcgvp]

In the description it says that Mike Paine is the voice-over artist.

[@AeroElectro]

I think it's a real voice but heavily post processed.

[@jso19801980]

its amazing someone can come up with this sort of thing, i cant even change the tyre in my car

[@sentientdogma1206]

Pathetic worm learn to change your car tire

[@sentientdogma1206]

@@medic5258 at least I know how to change my car tire HAHAHAHAH LMFAOOOO

[@matthewbyrd398]

Igor Sikorsky.

[@FreakinHigh420]

@@sentientdogma1206 you say that like it’s impressive

[@brandonproctor3639]

Can't spell it either..

[@adamamango]

he said “sideward” way more times than i was comfortable with

[@Dmenjivar22]

this is absolutely amazing, the design and mechanical complexity. crazy what we humans can do.

[@thangmonsang3337]

I can’t even understand 😂. But my poor brain love the physics.

[@gourisha9512]

Phew! Never thought helicopters were this complicated. Brilliant animation and contemporary topics covered. Keep it up.

[@BES-PK]

kzbin.info_dd3jSNlIGk?feature=share

[@capscol]

Helicopter lore

[@GabstheGamerYT]

the swash plate mechanism is so simple yet works so effectively. the people who came up with that are amazing.

[@ShiratoriIsOffline]

Finally! I learned how helicopters move thank you

[@chrismcpherson642]

Agreed Bob, excellent video...and clearly explained. I like your videos too, next stop, how to make painting fly :)

[@jayscott8583]

@@chrismcpherson642 accept the video wasnt as accurate as you think.

[@Maltanx]

Wow, amazing video as always. I'd never thought that the navigation system of an helicopter could be so complex and clever

[@publicmail2]

You mean flight controls...

[@MrBalthazar90]

And u mean ''hey look at me i know helicopters''

[@shadiajam9738]

Ixam قفااا6ف5فع5قع

[@shedokan]

The best explanation I've seen of gyroscopic percession! Thank you for the explanatory video, it was awesomw! Your content is truely unique.

[@omsingharjit]

3:51 animation of this video is much better than any

[@BHAI5II4355]

Lot of respect and thanks. Your video taught me a book of 1000 pages.

[@haibuiphuoc4442]

Since i was a kid, helicopters have been my favorite vehicle, everytime i see them, my heart is filled with joy, but now i understand how they work, it make me love them more

[@localnyraccoon]

I've always wondered how a helicopter could pitch and roll. This explains it well, thank you.

[@oc2phish07]

Another factor to be taken into consideration when moving from the hover and transitioning to forward flight is the relative speed of the blade moving forward (the advancing blade) in the same direction as the helicopter and the blade on the opposite side of the rotor disc that is moving backwards (the retreating blade). Lift is generated by the shape of the aerofoil, the area of the aerofoil surface, the angle of attack and the speed through the air. In forward flight the advancing blade has its speed added to the forward speed of the aircraft and the retreating blade has its speed subtracted. Unless corrected, this would cause the helicopter to roll over as far more lift would be produced on one side of the disc compared with the opposite side. This is controlled at the rotor mast head by allowing the advancing blade to move backwards slightly relative to the rotor disc spin and the retreating blade to move forwards. Thus less lift is produced on the advancing blade, more lift is produced on the retreating blade which evens out the lift on both sides. This adjustable movement is controlled at the blade root.

[@SunilGupta-be1kc]

Have u copied this ?

[@tsweens13]

that’s why the dual rotor design is more robust. With the chinook’s contra-rotating rotor sets, they both produce lift on opposite sides and it almost cancels itsself out. beautiful.

[@prabaharan5905]

What a great work done by engineers.Your videos are consistently outstanding,

[@JayronWhitehaus]

This is amazing. Thank you so much for this. Incredibly elegant and effective explanation. Love it!

[@Viki-zo1bc]

Swash plate is the thing I love the most in the helicopter. It's so unique to a helicopter.

[@obediahhinton1890]

I like how this video has freaking 9 Mill views which shows how humans get more curious when things are more interesting to them just like to me also.

[@schnitzel8070]

The direction the swashplate tilts relative to the cyclic is actually determined by how the pitch links are rigged. Most modern helicopters have the pitch links rigged in such a way that they automatically adjust for gyroscopic precession/phase lag so that the swash plate can just tilt intuitively relative to the cyclic controls.

[@spencer.kissack.the.author]

You sound like a pilot - or an engineer

[@leathelhit]

that's great. but the phenomena behind (gyroscopic precession) cannot be eliminated, responsible for all rigging or other approaches to make swash plate tilt intuitively relative to the cyclic controls. For beginners demonstration in this video will help them build solid understanding, isn't it?

[@OG_DSM]

I knew that ... 🙄

[@luismylastnameisnoneofyour564]

and you thought flying a helicopter in battlefield was hard.

[@markusw9455]

Luis My last name is none of your business Actually its the same thing: W/S for thrust. Mouse for the ring (tilt forward/backward/sideways) and A/D for the Tailrotor. Only direct up and down is done with the mouse in the basic position and more/less thrust. So I think in general not as different ;)

[@TheLastPhoen1x]

Pls, try flying one in Arma 2 XD

[@deathab0ve]

Flying a heli is fun in BF, but it is hard.

[@scudb5509]

The Last Phoenix That's easier that in battle field. You can do it with one hand, without using a mouse. However, to aim it to hit a target is a different story. I agree.

[@TheLastPhoen1x]

In every battlefield i played it was easier to pilot than in Arma 2, but to each their own. Maybe with auto-hover, but that is not really flying it.

[@Mike-ii1vz]

When you had a teacher with this voice you were guaranteed to fall asleep

[@Gardner0871public]

Incredible video. I now have the feeling that I stayed at a Holiday Inn Express last night

[@justingood1443]

Wow. The swash plate and blade rotation amazed me.

[@PsSarvna]

great explanation, great video, great voice , great channel. I am an student so I am now not able to support you at patreon,surely I will do when I am earning and watch lot of videos/month

[@roybjx4646]

mind blowing..thanks for the education i love you my man

[@jamesmichaelcabrera9613]

excellent videos I would love to support you on patreon

[@UjangBoyor]

its amazing how human can achieve such complex stuff within decades

[@abhinandanmalhotra3716]

Wow.... How Complex Mechanism is tanught in very simple manner !

[@soulsnatcher1786]

HELIKOPTER HELIKOPTER

[@da4127]

What is the patreon link? I want to support and I cannot find it. It would help a lot if u put the link in the description.

[@jimothyus]

go to the channel then the about section, there is a link to it there

[@Lesics]

Hi Davis, I have added the Patreon link in the description and end screen. Thank you for your supporting mentality. :)

[@laurencef8535]

samip science like a moment but not in equilibrium, and like force but instead of F=MA, T=angular acceleration * moment if inertia. Moment of Inertia being an objects resistance to rotation. If and object has a is starting to rotate in a direction the torque is written as in the direction of the right hand rule

[@kiomio10]

But wont the bearing between the swash plates have to endure extremely high amounts of friction ?

[@joshuat20k]

That's what I was wondering

[@Joe.Navarra]

That's the point of the bearing, no? If it's a ball-bearing, then the two parts of the bearing will just roll against each other, which has minimal friction (at least theoretically).

[@joshuat20k]

@@Joe.Navarra Definitely, but don't you think it would still wear extremely quick? Unless they have some type of fluid system running through all that, then I guess I could understand.

[@spencer.kissack.the.author]

@@joshuat20k I would imagine it is full of oil & then sealed. I'm not being facetious, I'm also just trying to understand. It reminds me of a common problem with Porsche's 911 models, 996 & 997, that had RMS failures - the Rear Main Seal, which was a ball bearing system part similar to what we're talking about here. They would 'run dry', explode & cause catastrophic engine damage. I ain't no genius but in a car that's bad. In a helicopter it's gonna be shit ya pants time!

[@paulalexisasuncion6361]

the manly urge to learn how do helicopters work

[@sgoell75]

THANK YOU FOR YOUR TIME AND EFFORT WITH THIS VIDEO!

[@TwojkReturns]

Here trying to understand kobe

[@NengVang2007]

My guess the pilot went to bathroom and let the helicopter ON Autopilot because no response back to the tower control radio.

[@harrisonb9911]

Tshais-2014 there’s no bathroom on the helicopter

[@NengVang2007]

@@harrisonb9911 my bad

[@Maltiez]

There are many other configurations of the helicopters, will you make videos about them?

[@Lesics]

Yah, helicopter navigation is a complex topic. It deserves a dedicated video for that.

[@johngayceowens7236]

Роман Поликарпов Roman Polikarpov That's a cool surname fam.

[@blakjack3053]

I own several Helecopters. Some very expensive, some cheap. I've crashed and totaled a few and survived, but that's part of the sport of RC!

[@Jeff-oh3de]

The first video on how airplanes fly rein enforced my knowledge. It made me remember how important the shape of the wings are to the flight of an aircraft. The angle of attack is important too because it indicates whether or not the aircraft will be lifted or will be descended. In addition I remembered how slats and flaps work and the rudders and it’s important to the YAW of an aircraft. The helicopter video reinforced a little bit of knowledge that I already had.

[@filmmakingwithsid]

Now I am ready if John McClain ever needed my help

[@tyngshainpaslein2036]

Thanks for sharing and I'll make one helicopter for you now...

[@Sarah.Riedel]

"How does the helicopter move? The answer is simple: just fly!" Ohhhhhhhh now I get it.

[@KANG-jk9et]

지금까지 헬리콥터로 유튜브 검색을 해왔는데 비행 원리를 설명해 주는 동영상은 이 동영상뿐이었어요. 한국은 고정익(비행기) 자료는 많은데 회전익(헬리콥터) 자료가 별로 없어서 많은 도움 되었습니다. 잘 보고 갑니다.

[@brianb-p6586]

The basic swashplate explanation is well done.

[@Naiuhz]

6:45 >Every single rotor helicopter needs this tail rotor [Laughs in KA-50/52]

[@TheTykbry]

He did say Single Rotor. The KA-50/52 is a dual rotor

[@CaptainGrief66]

@@TheTykbry But he intended _tail rotor_. The KA-50/52 attack helicopters don't need those because of the dual _main_ rotors.

[@thebest-qc2sc]

Kobeㄱ🙏

[@og_myxiplx]

Great video, but unfortunately horribly wrong on the physics behind how the swash and blades cause the heli to tilt. At 5:06 it says this is due to gyroscopic precession, which is a very common mistake people make. The actual reason is due to aerodynamic forces, and is much more complex than gyroscopic precession. One important difference is that gyroscopic precession *always* acts at 90°, whereas the effect on a helicopter depends on the rotor head design, and can vary significantly from this (such as a 72° lag on some models). Another mistake is that generally when the swash tilts forward, the heli will tilt forwards because the engineers designing the heli know about this effect and account for it mechanically in the linkage between the swash and the rotor head.

[@MrT------5743]

He didn't explain that the torque produced at 4:25 was the result of aerodynamic forces, but did correctly show that the torque at 5:06 when applied to a rotating rotor then gyroscopic precession is 90 degrees or sideways to that torque.

[@og_myxiplx]

That's my whole point, the way a helicopter rotor blade reacts has very little to do with gyroscopic precession, the point he makes at 5:06 is fundamentally flawed. Go read any text on rotary aerodynamics, this is not how it works. There's a simple way to explain why it's wrong: Gyroscopic precession always acts at 90 degrees to the force applied, but a helicopter rotor often does not react at 90 degrees to the input. In fact, the rotor lag will vary depending on the head design and can be between 72 degrees and 90 degrees. The effects appear similar on the surface, but the underlying physics and reasons why this happens are totally different. This is a very common mistake, but unfortunately utterly incorrect if you're trying to explain how a helicopter rotor actually works.

[@eds6889]

Ross Cooper-Smith ... it's 90° phase lag, show me any text that says 72°?

[@JohnDoe-eh4vd]

Ed S en.m.wikipedia.org/wiki/Phase_lag_(rotorcraft) "Phase lag can vary as a function on rotor tilt rate and aerodynamic damping....The rotor control system is mechanically shifted up to 90 degrees to compensate for phase lag"

[@JohnDoe-eh4vd]

at least the video didn't say some crap like "the rotor tilts in the direction the pilot wants to go"

[@SaeedAcronia]

This is why aerospace engineering is the best engineering field

[@sarangerande9587]

Extremely useful and informative video...... You sir.... Made this complex machinary toooo easy. 👍👍👍

[@nvmtt]

Helikopter Helikopter....................

[@NengVang2007]

After watched this video I feel like it is easy to fly a helicopter.

[@ChrisLee-yr7tz]

Watch a video of what a helicopter pilot has to do just to hover in the same position...

[@eds6889]

They have the blades turning the wrong way for Airbus Helicopters (formerly Eurocopter). Blades are never at a negative angle of pitch, they are merely at a lesser positive pitch.

[@brucemacduffee776]

What about during autorotation?

[@spencer.kissack.the.author]

Thank you for this most informative video, really well produced & presented. Amazing how complex these machines are, fascinating design in the angles of the blades & manoeuvrablity. The amount of revolutions must lead to so much necessary maintenance.

[@EdwardSuave]

Safe to say I’ll never be getting on one of these.

[@johku3733]

Why?

[@johku3733]

@@EdwardSuave It was the pilots fault not the helicopter

[@eddyspaghetti4391]

Thank god I fly in helicopters for my job

[@DustyKneezz]

@@EdwardSuave Do ride in cars? Rides bikes? Walk down the street? Or are you just scared of the world?

[@thegenius6732]

you see notification of video from learn engg, you first like the video and then proceed with the video

[@avibachenheimer4786]

I am showing my gratitude here "as shown"...

[@owenh.7555]

Who ever found out how to create helicopters that work is a legend

[@GoodOlFiddle]

Helikopter Helikopter

[@donaldmcronald297]

Who is here after Kobes death

[@omarpasha2968]

Me. I came to learn how a helicopter works!

[@johnvaldez82]

Me bro. I think there's a mechanical failure on Kobe's helicopter. 😢

[@johku3733]

@@johnvaldez82 Nope. The pilot just didn't consentrate enough. He was not familiar with the terrain he flying on, that led to him flying into a mountain.

[@mitsengupta8945]

Igor Sikorsky- the genius! I wish more people know about him as the inventor of helicopter.

[@okpalaprecious7790]

Incredible, the first people to bring such idea are more than genius

[@zieshach]

Helicopter helicopter Paracopter paracopter

[@sanketmohite]

This video answered so many questions of mine since childhood. Appreciate and thanks for your efforts.

[@ATCRyderX]

*SIDEWARDS*

[@maltheld]

ATCRyderX© "Patreon"

[@colepeterson5392]

thank you

[@adolfconradigharas439]

Thank you so much for this brother. May you always follow GOD and His guidance. Keep safe

[@GauravChaudhary09]

Wow incredible description of swash plates

[@broncosbreaks]

This training seems legit to use as a pilot’s license. Thanks

[@OMEGANiru]

Suddenly, I was thinking that How helicopter fly? I Got some information from the above video 👍🏻

[@jawahardurairaj]

Wow Thanks for the effort to illustrate the science

[@rwomushanageorge6660]

This is really good I have gained some skills about how helicopter work

[@Hanzales077]

Oh man, I have seen several other videos explaining the mechanics, I clicked on this thought maybe this one finally makes me understand completely and yes! At 3:58 I am absolutely in the picture and finally, understand what makes the blades doing the job and how it is connected to the control stick. It is pretty easy at the end :) I always thought what the magic is behind the rods and all the stuff at the rotor :)

[@charlesaghahowa7476]

These are the people that really needs Nobel peace prize

[@antonfriendo157]

this is a very nice video, thank you for explaining the physics of helicopters in a comprehensible manner.

[@marcfuchs6938]

The animations and the editing of those were rather lazy, but certainly good enough for bringing down the message and deliver the understanding, that's intended. Good video. Helicopters are a true marvel of aviation technology. It's more simple than I thought, but coming down to this simplicity within such an intriguing machine requires a lot of engineering all by itself. And it's necessary, because making things simpler doesn't only mean, making them cheaper, but minimize the amount of points of failure, so making the machine more reliable - even though certainly a helicopter is still complex to a level, where only highly educated staff can construct and maintain it.

[@marvinmanuebo7373]

That's clear and amazing explanation now I know how does helicopter fly

[@ucangvu8373]

What an amazing demostration !!

[@Chrissy212]

Swash plates are such a awesome simple device of modern propulsion

[@feelingzhakkaas]

excellent presentation with awesome animation....

[@lanjian45]

Thanks, this video corrects my misunderstanding of choppers for decades

[@bharathiraman7653]

I'm pleased with the technology and knowledge i got from this video.

[@KT-ly6rc]

0:36 Its "magnus effect"not airfoil technology. As blades move pressure difference is created between top layer and bottom layer.Due to this an up ward force is created.It helps for liftoff.

[@clavo3352]

Wow! Nice graphics and explanations.

[@rizwangull6311]

My favorite video about Helicopters I don't know Helicopter run and fly but then I know Helicopter run and fly

[@ManishSaxena01]

Thanks very much. I was always intrigued by helicopter motion.

[@dieseldiesel9292]

I never knew the blades swiveled like that. cool stuff.