How do flaps work on an aircraft?

In this episode I will explain the purpose and function of the high-lift devices fitted on the Boeing 737NG. I will explain and show you how they work, when we use them and why.
I really hope you will enjoy this one and if you do, I will follow up with more in-depth procedures in upcoming videos.
To download the Mentour Aviation app and join the comunity, use the links below!
Apple devices: appstore.com/mentouraviation
Android devices: play.google.com/store/apps/de...

[@kenco3370]

Mentour pilot you are a credit to the airline industry! Been watching your videos and they are brilliant, can’t understand why people press the dislike button. And please ignore the immature people leaving stupid comments! Well done.

[@marko93ns]

I got here after learning flying is hard from the microsoft flight simulator.

[@Azaelris]

Honestly same. I came here to learn and use the knowledge while playing flight Sim. I didn't know what flaps were but now I do.

[@shishirparajuli1681]

Same here

[@itznayem8441]

😂

[@eddideredel]

When you know everything, it's quite simple, not easy, but not difficuilt

[@Vortex_ICEcold]

Flying is so damn easy. I just need to know when to use flaps

[@garydunken7934]

Capt Mentour is a Boing 737 man and Capt Joe is Airbus 320 pilot. I'm glad to have subscribed to both of these gentlemen to learn about these aircraft.

[@MentourPilot]

+G Yogaraja Great! I hope you enjoy the content!

[@dpm-jt8rj]

Here come the undoubted "A" versus "B" arguments!

[@kimachhangte637]

same here, I am watching their videos on a daily basis...😂😂

[@oppotato5440]

Not anymore

[@muganyizijudex896]

Black people should change their mind set from static to dynamic

[@pesto12601]

Wow.. just found this channel and I'm addicted... very nicely done!! and well spoken. Off the cuff and not scripted which I really enjoy!

[@sciez22]

Absolutely love the close up shots of the leading edge devices being extended. That underneath perspective is really cool.

[@manoz6194]

When I first saw the flaps I thought the aircraft was broken and started panicking lol, I was only a kid

[@shantanu925]

Please talk about HUD displays like the ones on 787.

[@NaCl_AQ]

Learnt so much from your explanations. The more I learn about the mechanics of flying, the more I love aircrafts. Thank you so much for sharing!

[@Pill-AI]

You explain so well ... you make it sound so simple !! Thank You

[@_cheapsmokes]

Thanks for this one! Always been interested in the basic procedures for flaps during take-off and landing.

[@AviatorAS777]

Wow Mentour!!!!!! Thank you!!!! I asked you the question about flaps on a prevoius podcast and here it is!!!!!! A wonderful video as always!!! My respect for the responsibilities of pilots just increases everyday!!!!!!! Sir, I truly love and value all the help you provide us aspiring pilots and aviation enthusiasts !!!!!!!!!! Waiting for more technical videos:-) I would love to see more in depth technical and handling videos!!!! Thank you!!!!!!

[@ronmoore5827]

Just discovered your channel and enjoy it very much. I have 250 hrs in a 172 and enjoy learning the details of what it's like to fly the airliners. keep up the good work sir.

[@silentious320]

Hey Mentour im Bingewatching your videos, and i love the quality and content. Ive definetly come to stay

[@brendaproffitt1011]

totally great on flaps and lifts drag settings. landing braking.and excellent job and the explanation too..THANK YOU.

[@MrJetra]

A thorough and very beautiful description. Thanks. I have wondered what the gates are for. Now we know.

[@tylerg7567]

I think you’re a terrific teacher! Love your presentations... 👍👍

[@driesdejager4049]

All ways enjoy your vids so much, I had been an aircraft technician for many years in the SA air force on Mirage III jetfighters in South Africa, Also ran the Jet engine test bench and find these vids very interesting. Must say the best in your category I've come across. I now live in Madagascar working with school children through education and and a Scouting program. Keep up the good work. Always had a love of flying but never had the opportunities. What I'm now doing is "Reaching Out - Touching Lives" and I love it !!!

[@ArinzeAhanotu_001]

For the very first time I've had a nice and great explanation about flaps, slots, slats and so on.. I wish you could explain more on slots.. thanks Oscar from Nigeria. And just keep up the good work, I really love it, it helps me over her in Moscow while studying and during practicals..)

[@GDR8895]

I love you. Omg, with you as a teacher anybody can understand everything. You are amazing.

[@aayushpatel298]

Finally you uploaded it Its damn satisfying video. Very much impressed

[@gl9414]

Good video Mentour, I think flaps, slats,. ect. are one of the coolest features of wing aerodynamics and design. keep up the good work!

[@brassmanone]

Always love the technical videos.

[@MentourPilot]

+brassmanone Great yo hear! Feel free to share it with any forum you think might like it!

[@marcrheaume2631]

Great videos !!!! I am an aviation fan from Quebec, Canada and have utmost respect for airline pilots & the way they carry themselves while on duty. Keep it up!!!

[@MentourPilot]

Thank you! Great to hear, I will try!

[@marcrheaume2631]

Thanks for the reply Captain. Let me submit you an in flight scenario: you are in take off mode on the 737, 5 seconds after the ''positive climb, gear up'' call ,for some unimaginable reason you loose thrust in both engines. Would it be possible then for the piloting crew to recover from such an ordeal & bring the plane to a ''safe landing''? Thanks a million for reading me & all the best to you.

[@carlosramos7494]

@@marcrheaume2631 I can see you are an inteligent person and I am sure you know what will happen in this scenario, don't you? Our teacher didnt answer for a reason so please don't put him in that difficult situation, just learn the positive stuff he is teaching us brilliantly 😉

[@CaptShami]

Thanks, Mentour. I always wanted to know when to put down flaps. Well explained

[@dalechristensen3640]

Also, a byproduct of flaps 30 or 40 is increased drag and therefore higher engine rpm. This facilitates quicker engine spool-up to go-around thrust in case of a missed approach.

[@jonathansamuels5818]

All of these procedures seem quite complicated but you make them look quite easy. Thx.

[@alhdgysz]

This video was fantastic! I like the practical videos.

[@cindytartt4048]

You’re BRILLIANT! So fluent & clear. Thank you so much.

[@sharonhawkins1677]

this is a fantastic channel THANK YOU- reduce to eliminate fear!!!

[@petezak5011]

Love your show very informative I’m also a wing structures mechanic and I help build the 737 wings it’s an amazing piece of engineering, if it doesn’t have wings it’s just a bus

[@Motorman2112]

Interesting point about over-spinning the wheels, I hadn't thought about that.

[@traintrax8]

Love these videos! I had no idea the leading edge of the wing changed shape at all!

[@blueeyedgodzilla]

Great video! It's nice to get these technical briefs.

[@Avgeek1564]

Very informative and well presented video, keep up the good work Skipper!

[@profmet]

Thank you Mentour for your dedication to us. This video is an awesome one. You are generous with knowledge and time and the result is great. I will share this video everywhere.Thanks again. Bye Bye

[@step2191]

Thank you for yet another great and informative video!

[@OLGMC]

Great video! Would love to see an explanation about mass balancing and tabs on the control surfaces in the future :-)

[@flyingmeatball8905]

Very good video that explains things in a simple way, thanks captain

[@blessedmoyo9337]

Thanks Captain Joe, you make it easier. Well done

[@prior8t2000]

Enjoy watching all your videos for the last several months now and definitely decided to become a subbie.. Keep-um coming now...

[@thebrain7441]

Hey Mentour, I was wondering if you were thinking of doing a video on the electrical systems of the plane, like explaining the idgs, batteries, standby power etc.

[@kamaukamau6233]

Very detailed explanation on the flaps operations-thumbs up

[@roque990]

I use to take off in simulators with 45º Flaps...😂 Something new learndu.🤙🏻❤️

[@JC-bl9bo]

Freaking fascinating, great video. Always of course heard about flaps and all that but wanted to get an in depth understanding or at least some understanding. Great vid.

[@gerardmoran9560]

Nice instructive video! There are two points I'd like to mention. The increased drag of landing flaps are important to make steep approaches if you're flying a Cherokee or Twin Otter in mountainous terrain but most transport jets don't fly those profiles. We all (airliners) need to be at about 1000' at 3 miles. Early turbojet engines needed a lot of time to spool up to go-around thrust and the higher drag meant higher stable thrust on approach. Engineers built in high drag for that reason. This greatly reduces spool up time to go-around thrust. In fact some early turbojets (think 707, 727) were so slow to spool up you were basically committed to land once below 400' unless your power was up. Modern turbofans are better but the design concept remains. Lastly, at Delta we illuminate all lights (landing, wing, nacelle and runway turn-off) below 18,000' to maximize our visual impact. Perhaps it's because there's more general aviation traffic in the US. At Delta, it was technique, but not procedure to turn on the taxi light when landing clearance was received. "Exterior lights" was a checklist item on the descent check which was done descending through 18,000' which is the max limit for VFR traffic in the US. Each airline has slight variations. Cheers

[@pleasedontfeedtheai2341]

Great stuff, flaps n slats .. more complex than I thought!

[@alexleplain4821]

Ohhhhh now I see y my flight was delayed cus the pilot what making a vid

[@jerrywali5865]

Funny

[@bethsolomon7351]

LOL, I requested it for my x plane 11 sorry that your flight was delayed we will make it up in the simulator

[@nonami_066xswqoqowiwl]

STOOPID

[@kathyvolpe-schaffer7419]

I've been waiting for this podcast forever, and it is so interesting! Thanks so much. Luv all your podcasts. Happy New Year!

[@mooniejohnson]

Great video, as always! It's very interesting when we "borrow" from nature for our technology.

[@cindytartt4048]

I love that too. Similarly as birds flare upon landing.

[@Sheaffer72]

Great explanation. I learned quite a bit from this video. Thank you.

[@title3566]

So good explanation, I've learned more

[@hakanviajando]

Thanks a lot, it is very informative. I was always wondering when I see inside the plane why flaps have openings between each segment.

[@1Miguellima]

Thank you so much for explaining how the flaps works, I knew how it works , but I learned in this video the difference when using one engine and when using two engines, great video

[@MentourPilot]

+Miguel lima Thank you! Great to hear that you liked it!

[@martinjohnston4274]

Excellent explanation! Keep up the great work.

[@rockslide4802]

This was an excellent video. Very informative.

[@kathy13volpe]

This is the info i’ve Been waiting for. This podcast was excellent. So neat!

[@MentourPilot]

+Kathy volpe-schaffer I’m glad to hear that you like it!

[@ZimmMr]

L=½pV²ACL. Change A (area) - get more lift! What I learned is that a plane can't over speed (v), so now this equation make more sense. Thank you mentour!

[@AmbientMorality]

It changes the coefficient of lift more so. Though arguably, since the area is just a reference area, the distinction between area and coefficient of lift are arbitrary and should be combined

[@1981vsth]

Fantastic information on the flaps, and slats on the plane! Just wondering about the pros and cons of a droop vs a slat, and maybe revisiting blown flaps vs slots, or potentially a hybrid flap (My rudimentary understanding is that blown flaps were taken out of regular service due to complexity and mantainence. However, has technology now caught up to warrant a revisit? Active blown flaps seem to be able to create an immediate change in the boundary layer over the aircraft control surfaces, as opposed to the slots, which relies on the surrounding (Injection vs environment)) Looking forward to you next videos!

[@TheGguuii]

First of all, great upload, I always enjoy watching your videos. Second, I noticed the new fuel switches layout as well as the parking brake lever, does this have any impact in the operational side of the aircraft?

[@danbame]

Loved this one! Glad to see the 737max engine cutoff lever as well!!

[@MentourPilot]

+badname [e-mail] Yep! Check out my Instagram if you want to see it up close.

[@danielsiwerov2151]

I was looking forward to this video so much :D Finally it's here and the waiting was really worth it :D Great video with a lot of nice real aircraft videos. Also like the fact, that you talk from inside a real 737 cockpit. What kinda confused me is, that you only have 2 landing light switches. All 737s I flew in my simulators so far had 4 :D Great video! Keep on the good work :D

[@MentourPilot]

+Daniel Siwerov Hi! This is a brand spanking new aircraft and it is fitted with the LED assembly. (Check out my instagram for a nice picture) This means that the Retractable lights have disappeared.

[@danielsiwerov2151]

Oh wow. Didn't know that :D Yeah of course I will check out you instagram :D Thanks for answering my question :D

[@Yyyyyy5]

Everybody in the comments is learning from you and it's great. I am having trouble understanding yet I can fly a mean Radio control plane flawlessly.

[@emrahgoksel736]

Hi, I am from Turkey. Thanks for these videos. Firstly I need to say that your accent is very good and clear. I am not a pilot but curious about aviation. İf it is possibile it may be very excellent adding to the videos more animation or real videos. Thanks in advance.

[@p11111]

Love these technical videos

[@nzpork1]

Thanks for that. I have to land at WLG NZ in an hour and its a 145 kn crosswind so this should get me and my passengers there in one or two (max) pieces.

[@vim66]

thanks for the detailed explanation.

[@kingstonneel]

Please talk us through the newer B737 models and difference between the hydraulic systems of a twin jet(737) and a quad jet(747). And thank you for such informative and interesting videos.

[@saraswathijanakiraman4740]

Hi mentour, very welcome this is yet another view for your video as always I hope you too will be doing absolutely fantastic

[@jameskoralewski3583]

When extended, they give the wings more lift which allows the plane to fly at a slower speed which can be very useful at landing time.

[@larrybaker5316]

great videos, ! ! would love to fly the 737, but at 73 years old "ain't gonna happin."....keep up the videos and sharing your aviation knowledge, totally enjoy it all

[@TheGBRFShed]

Fantastic video. I love how you do it from the flight deck! you deserve many more subscribers.

[@MentourPilot]

+TheGBRFShed Thank you! Great to hear! Feel free to share it with your friends in any forum you think might appreciate it!

[@somchaidiy5663]

Hi i like your channel very much. now question i want to ask, in the cockpit has many instrument and many switch control between pilot seat and co-pilot seat. how do get in the seat from back. look like you have to jump over those instrument and switch controls. am i understand right?

[@MentourPilot]

I did a video recently about the chair. Check it out!

[@fridaycaliforniaa236]

They have rails, they can slide ;)

[@rexsar8153]

Cool! Its very interesting video. Good to know how these mechanical function on Aircraft.

[@autopilot7953]

I really want to ask you something... When do we open the flaps while landing,how to pilots understand when to open them?? Btw,thank you so much you are helping all of us!!

[@dpm-jt8rj]

I have wondered how the winds are factored in slot/flap selection? Straight headwinds versus a crosswind component. I have student time in a 172, a Warrior II, and a Grumman Tiger, but no heavy tin. I have no aspirations either, but I am curious. We had a trim wheel to "Trim" out the yoke. I have also wondered about the numbers on the flap lever. Do the numbers, 1, 2, 5, 10 and so on, what do they correlate with? Are they angle degrees or are they just identifiers for your company? As a very interested frequent passenger, I am just interested. Keep them coming Capt.

[@victory0115]

Love your vids Mentour! Another great explanation!

[@MentourPilot]

+victory01 That’s nice to hear my friend!

[@mrhoffame]

I LOVE the vids in the cockpit!!!

[@bcole2353]

Excellent Thank you very much- this experience has caused a change in behaviour

[@Grovreicraynth]

Highly educational Capt. Very helpful for aviation students like me who want to become pilots.

[@MentourPilot]

+Adrian Co Great to hear my friend! Feel free to share it with whatever forum you think will like it!

[@kirandhouneeram4177]

I like the way you explain captain thank.

[@TheCozzie99]

Wow it's so complicated. I'm in awe 😯

[@Shannonbarnesdr1]

heh when i used to fly, i used to love watchingthe flaps and things operate as the plane turned, banked, landed and took off, always fascinated me and i always been into planes and flying since i was lilttle kid

[@blackydon]

Fantastic explanation. Thanks.

[@CherylWiggle1390]

What do pilots eat when they're at work and what airline are you with? Thanks for explaining the secret code of airline crews because I've always been wondering what those ding dongs mean whenever I listen to videos on KZbin where people are traveling and you hear the ding dongs going off. Plus, I was also wondering if pilots can bring their own lunches from home and what do they pack in their bags?Also, where are you from? I've been picking up on your accent and I find your voice soothing. I'm from Nova Scotia Canada and I find your videos interesting because I learn a lot about the airline industry.

[@StayPuft80]

Really good video this. Extremely good invention and design

[@mochammadnurohmansetiaji9548]

thank you capt for the explanation

[@roboninja999]

Been waiting for this episode for ages ! :D

[@MentourPilot]

+RoboNinja99 I hope it didn’t disappoint!

[@roboninja999]

Certainly not! One of your best videos yet!

[@szymonkowalczyk5550]

Thank U Petter! another outstending content and quolity! So Profesional! U made my evening sleep wel Szymon Kowalczyk

[@MentourPilot]

+Szymon Kowalczyk Thank you! Great to hear that you liked it!

[@timw2498]

You are amazing. You’re so young and so knowledgeable. You inspire confidence in the younger generation.

[@MentourPilot]

Thank you! twice!

[@DucksDontPuck]

very great explanation, tysm!

[@dlakatos847]

Great video, keep up the great work!

[@bhami]

You mentioned doing a go-round in certain cases. Do you practice touch-and-go during regular training, or is that considered an emergency-only procedure?

[@treloarw]

Mentour, one of the biggest differences I’ve noticed between the new flight sim 2020 and xplane is on 2020 the tendency for these airliners to balloon just before touch down if you’re coming in a bit low and/or airspeed is low and you increase the throttle just a hair to try and slow that vertical speed before you slam it down for a hard landing. Xplane isn’t nearly as sensitive for that ballooning. How accurate is that concept between the two sims? Can you make a video talking about how you deal with that sort’ve issue and final approaches/glide slopes as a professional?

[@bernieweber4663]

Some of the newer aircraft are using extended nose gear and so the flaps have been eliminated completely. During landing the nose gear oleo retracts further into the strut creating less lift.

[@randombandicoot462]

From the 1970's when "P. jokes" were popular (99% of the people telling them couldn't find P. on a map). The pilot ask the c/p for flaps, more flaps, and still MORE flaps. They land successfully, & the pilot says, "Man, is this runway short" to which the c/p says, "Yeah, but it sure is wide!"

[@stefanoricci94able]

Hello captain! Very nice video as always and very interesting. But in the video you said that you where going to explain what those edges are on the flap lever between 1 and 10. Thank you in advance for your time.

[@MentaIPatient]

Good stuff my friend... Thank you...

[@franciscoperezlazzari7319]

Aviation Thursday! Great video mate

[@MentourPilot]

+Pancho Perez Lazzari Thank you! Feel free to share it with your friends!

[@mozuk8284]

Love the video. Thanks 🙏🏻

[@craigmonteforte1478]

Thankyou for the video I’ve built and flown Remote ControllAirplans so i have the basic concept of the Wings Job but i was confused on CommercialAirliners Flaps operations because as a Passenger withWindow seats i could not see anything moving up or down l on the wings but this makes sense as to why and how they operate in my defense i was thinking they operated more like the Airelons but the more work like extending and decreasing the shape of the Wings from both the leading and trailing edges my imagination had it completely incorrect as i thought it worked more like a air flow Dam to increase and decrease Airflow i knew it was Important for lift and Drag used in take off and Landings

[@Quasihamster]

Slats and flaps are the feathers of a plane. I like that comparison.

[@MentourPilot]

+Mikosch2 Yeah, it’s a very visual comparison. I thought it was apt.

[@fjphoto23]

It is based on how a bird flies and lands.

[@SilverbackGorilla69]

My instructor always used to compare planes to birds regarding certain phases of flight. Which is is suiting because they are natural fliers.

[@Corsairforu]

Yeah and those WWII Bf 109's had slats on the leading edge, first fighter plane with them I think.