What is GROUND EFFECT?

An aeroplane's flight characteristics are different when flying close to the ground compared with flying at some altitude. Ground Effect can provide improved flyability. Find out more in this video.
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Thanks for watching!

[@aravindhsm1287]

I came here looking for ground effect in f1 cars and now I know about planes too

[@flightclubonline]

Welcome.

[@africanosuinternwt6305]

@Alan Now they dont but in the past they did and next year will too

[@avrumisolaimani8546]

oposite

[@vatandas1542]

Yes, as Avrumi said the opposite. Ground effect, in for example the famous Lotus application, was to push the car down. Failed badly, if I recall correctly.

[@davidaugustofc2574]

​@@vatandas1542 ground effect has been used in every F1 car since then, it's responsible for at least half of the total downforce.

[@russotusso1695]

What's interesting is that ground effect has 2 meanings. One is what was explained here and affects planes while other has to do with cars where by having Venturi tunnels under car and then trapping air under it you increase downforce by a lot yet drag doesn't increase as much.

[@jeremyelphick-pooley-desig4405]

Brilliant! Clear description of what it is and how it works. Well done!

[@flightclubonline]

Many thanks!

[@FlyingRagilein]

In ground effect a lower AOA is required to get the same amount of lift at given airspeed (i.e. CL increases). That's because of the air cushion below the wing. This has several observable effects: 1) If you maintain AOA while entering ground effect during landing, then less airspeed is required than outside of ground effect to keep the aircraft flying. This is the reason why the aircraft floats for a while although it slows down. 2) If you maintain airspeed when entering ground effect, then less AOA is required to keep the aircraft flying - i.e. you would have to pitch down a few degrees while in ground effect. This is the reason why there is less induced drag while flying in ground effect. 3) If you climb out of ground effect, then either a higher airspeed or a higher AOA is required to continue the climb. Both needs more power. This is the reason why you might not be able to climb out of ground effect if the aircraft barely had enough power to take off.

[@bogas582]

Saw a flock of ducks flying close to water on one of "The Boys" opening shots and googled it... now i'm here and not disappointed, cool stuff.

[@devrajyaguru2271]

Thank you sir/mam.....please educate us more using basic concepts and effects using these type of videos

[@chongsingcchan6112]

What a succinct explanation! love the background music too.

[@flightclubonline]

Thank you!

[@SM-ho3bv]

The video appears to be great but the music was a big bad distraction. Possible next videos no music please

[@DanielA-ou2hf]

I'm alright with music, but quieter would be better. The high pitch instrument, the banjo, was distracting.

[@KS-ew1sz]

Awesome work, can you please upload more videos and frequently. Eagerly waiting.. Thanks

[@myshamey]

I LOVE YOUR VIDEOS!!! SIMPLE AND TOTALLY AWESOME!!! Thank you so much and waiting for more!!!

[@flightclubonline]

Thank you for taking the time to leave us such a positive comment.

[@allgood6760]

Thank you for this music 👍

[@zaynezaman]

Very good explanation, thank you

[@NotBob-zw3zw]

While it explains what happens due to ground effect during take off and landing, it does not tell you what to do to counter this. When right after taking off, you lose the ground effect and thereby increase drag and reduce lift. At that time the pilot should increase thrust to max and slightly lower the angle of attack. Natural instinct at that time is to keep the nose up in order to climb but that will only increase more drag and cause the plane to stall. When it comes to landing, you feel the cushioning of the ground effect due to extra lift and lower drag. In this case you lower the thrust to minimum and do the opposite of when you are trying to climb, which is slight nose down. If wings have slats then you land with nose slightly up due to your already higher drag.

[@harrybarodawala3588]

fantastic videos! it really helps out a student pilot who is currently studying and flying! thank you very much!

[@flightclubonline]

Glad you liked it!

[@harrybarodawala3588]

@@flightclubonline cheers :D

[@diogoribeiro9923]

Just a quick question, when u say Lift vector is it the total reaction vector ? Because I thought the lift vector had to stay always perpendicular to air flow

[@notit7282]

In case anyone coming across this comment is still curious about the question about the tilted lift vector, you can perhaps look into wingtip vortices, which I believe produces "induced drag" (which was mentioned in the video.); and adverse yaw, which is related to/produced by the change in lift vector. You might find thorough answers by searching in those directions. The answer I deduced from my brief research is that the lift vector does stay at 90-degree, as it is really the change in relative wind's direction that caused an inclination in lift force. First, wingtip vortices produce air that moves downward ("downwash"), tilting the lift vector backwards. Wingtip vortices will always be present when flying because it's a byproduct of the pressure difference caused by the airfoil shape, without which planes cannot fly; Second, during rolling actions, one wing indeed moves up (therefore it interacts with wind from above) and one down (thus interacts with air from below), in addition to the wind from straight ahead. As a result, the wings' relative wind actually points slightly upwards for the rising wing and slightly downwards for the falling wing, and along with that tilts the direction of lift backwards and forwards respectively. Disclaimer: I'm neither a pilot nor a physicist, merely someone who's taken a liking to learning about (but with no guarantee of truly understanding) the ins and outs of flying. So take it with a grain of salt and do your own research/ask your instructor!

[@eesaladeekshith6926]

Beautifully explained!💯

[@flightclubonline]

Thank you!

[@superstardafunk]

Love your videos!

[@Izumi_-de7jl]

But since the pressure below the wings increases even more when in ground proximity, shouldn't it increase the lift induced drag due to inverse pressure gradient?

[@davidaugustofc2574]

Should, but doesn't

[@minnesotajack1]

I want that music playing when I’m at the dentist or getting an IRS audit. Everything is okay when that music is playing Anyone know what it is?

[@maxwang2537]

0:45. I don't believe this is correct. Lift, or induced drag, is not caused by the airflow spilling around the wing tips to above the wings. This overflow only causes loss of the theoretical lift, comparing to a wing of indefinite span (without such spilling around).

[@assenmacher]

Very good explanation! Thank you for clarifying!

[@flightclubonline]

Glad it was helpful!

[@EnsanNormal]

how to overcome the ground effect to land as planned?

[@williamrobinson7435]

They've just been on about GEV ferries they've developed in Stockholm. This is an important part of the future.

[@uk8804]

Great video once again. Thank you.

[@cyrilkommareddy2760]

Brilliant video

[@flightclubonline]

Thank you very much.

[@brujo_millonario]

Great video, what's the music?

[@flightclubonline]

Thank you. Music provided by KZbin Creator.

[@brujo_millonario]

@@flightclubonline thank you but which one of the KZbin creators?

[@flightclubonline]

@@brujo_millonariothe song is: Fresh_Fallen_Snow

[@brujo_millonario]

@@flightclubonline thank you!

[@qlemens6273]

awesome explanation!

[@Warbird-Aviation]

Thank you very much!!!

[@flightclubonline]

No worries!

[@captainoktay1391]

Good explanation thank you

[@flightclubonline]

Thank you for the feedback.

[@John__8t1]

Check out the scoop on Binance CEO's exclusive interview for the inside track on future developments

[@dilarafersah1041]

very helpful video

[@flightclubonline]

Glad it was helpful!

[@Noah-sl8cu]

How did that plane hit the pentagon going 500mph???

[@webley1529]

Great, but appreciate if u remove music, distraction!

[@darylemhikoreyes9448]

Thank you

[@flightclubonline]

You're welcome

[@flankerskioneniner4290]

Thank you 👍👍

[@flightclubonline]

Thank you too

[@flankerskioneniner4290]

@@flightclubonline Go ahead 👍👍

[@mitchellstent8175]

you know I'm the master of ground effect/ landings

[@mostafakassem7308]

best source to get wrong information .

[@FacetheFae]

So, why does the ground effect decrease the critical angle?

[@Mark-md9pe]

Because the adverse pressure gradiant at the trailing edge of the wing is strengthened in ground effect.

[@kamilkenar9747]

Where do u do this animations? Powerpoint?

[@flightclubonline]

Using Apple's Keynote.

[@kamilkenar9747]

@@flightclubonline how much time do u have to spend on average video? It seems it takes much time

[@jeb9097]

Rip sweet angel aliyah ❤❤❤❤❤❤⭐

[@rehoboth_farm]

How would a 757 handle at 530 mph at an altitude of about 20 feet?

[@gerhard7323]

It would crash into the building it's aimed at apparently.

[@Spymell]

Nice video but the volume of the background music is annoying...

[@flightclubonline]

That's good feedback for us. Thank you!

[@paumarsverdaguer3082]

Anyone here for Principles of Flight EASA QB in Aviation Exam? xD

[@platoscavealum902]

👍

[@nofilaltagdy854]

i love you

[@JDMattern]

I'm just curious where the evidence is that the downwash force of the wing is created by wingtip vortices? Most videos I watch on this topic from aerodynamic lectures mostly point towards a combination of the wing vectoring the force downward more attributable to things like the Coanda effect then wingtip vortices. But the downwash of created by the wing is what creates a lifting action, and this explanation says the downwash is created by wingtip vortices. So this video is saying lift pretty much then a complete result from wingtip vortices? Playing devils advocate here, but the FAA explanation has never seemed to make sense. Help me understand.

[@davidaugustofc2574]

The downwash of any wing is just the inertia of the air molecules. As you know, air has pressure, which means the molecules push each other apart at all times, lift being created by the wing pulling air towards itself is bs and blatantly false. It's also incompatible to the way lift is calculated

[@brittneymensch9938]

WHY IS THERE MUSIC PLAYING OVER WHAT U ARE TRYING TO EXPLAIN ALL I CAN HERE IS A GUITAR JAMMING OUT WHILE UR SOFT LIL VOICE IS LOST AND I STILL DONT KNOW WHAT GROUND EFFECT IS

[@scottnewman2443]

Can you tell me how ground effect allowed a commercial airliner at 500 mph to hit the Pentagon? I don't quite understand how a "pilot" with no experience overcame so many improbable circumstances of flight to perfectly hit a 80 foot tall building 10 feet from the ground without crashing before doing so?

[@quirtt]

im here from 86

[@andresgonzalezcerda7635]

Nice but not completely accurate. And infinite wing will theoretical no vortices, so no ground effect possible ? Not true.

[@davidaugustofc2574]

An infinitely long wing would only have ground effect in a negligible part of its width 🤪

[@anirudhkaushal8494]

Search airfish

[@jamescaputo5095]

Why the music. Interferes with dialogue.

[@Yokosoo]

what is with the music. cmon... it is so annoying and hard to listen.

[@LuckyDogDog]

Why in GODS name do you have the ridiculous music in the background. Between your accent and the music any good information you are trying to share is lost. Stop the music you don't need it your content is good enough

[@brujo_millonario]

I love the music and her accent is sweet.

[@petesmith9472]

Music I agree...but what's your problem with the accent? I think you might be another insular American without a passport.

[@junkers66]

Chill. Yes the music could have been a bit less loud. But if being presented with otherwise good content - for free - one can voice the opinion in a more friendly manner.

[@taittedavid]

bla bla bla

[@Fiidnrnhr]

Who came up with this music? 🤦‍♂️

[@mrblack9791]

boing