"To prove this is not a green screen I'm going to run into the distance" I belly laughed, thank you lol

@rayk6344

2 жыл бұрын

Best part of the whole video… he flies away and everything! 🙃

@mayganphynix8267

2 жыл бұрын

that was cute haha

@The_ZeroLine

Жыл бұрын

Loved that. And it really did look like a green screen.

I watched these videos when I was a little kid interested in airplanes, now 5 years later I come back here for my study in Aerospace Engineering. You really shaped who I've become and I'm so grateful that you made these video's. Much love

A layperson like me, who has little knowledge about aviation is practically dragged into your channel. It is interesting and throwing more information has really made me an enthusiast in aviation. I would love to watch your channel more and more and of course, thank you.

I love these vids: makes understanding technical flight things easy to understand and very enjoyable.

@MentourPilot

5 жыл бұрын

Perfect! I am happy you like them!

Winglets also provide more places for airlines to stick their logo.

@GD15555

5 жыл бұрын

TonyP0927 and more room to hold on to if delta gave away your seats to standbys right in front of you while you hold the ticket in your hand.

@annferguson3113

4 жыл бұрын

GoodDay Wow.

@tmreed

4 жыл бұрын

I actually like that.

@TS_Mind_Swept

4 жыл бұрын

Howdy

@harshkhudania7587

4 жыл бұрын

Very idiotic

Winglets are also much safer. Some of the vortices created by heavy and slow aircraft can be extremely powerful and even push other planes out of the sky (if they happen to be in the path of the vortex). Winglets help greatly reduce the vortex (as Mentour said), by giving a place for the high pressure and low pressure air to meet gradually (instead of a big column of high pressure air twisting over the edge of the wing as it tries to fill the low pressure area). The recent Qantas incident from last week in LA resulted because the plane was hit by the wake vortex from the taking off aircraft ahead of them. Aside from that, there have been many accidents attributed to wind vortices, both big and small aircraft.

“Nature has a tendency to do things in the most efficient way” *Expect the next Boeing to have flapping wings.*

@Yair642002

3 жыл бұрын

*Starts praying

@mihneamanta8636

3 жыл бұрын

Well airbus started testing something near that

@volti99

3 жыл бұрын

Thank you! Your delivery content and enthusiasm in your presentation is very commendable. You present a very complexed topic (winglets) to a level for novice to advanced learners to understand. You are a very skilled and knowledgeable teacher.

@kw8757

2 жыл бұрын

Boeing can't even develop a replacement for the outdated 737 which has been pushed way past its design life, with disastrous and tragic consequences. They should put their efforts into building a safe aircraft before they attempt to do anything ground breaking.

@ShonMardani

8 ай бұрын

Parasite drag is produced by VERTICAL surfaces and Induced drag is created by HORIZONTAL surfaces, for example when the Flaps are at 0 degrees they produce Max Induced drag and Min Parasite drag, at 90 degrees Min Induced and Max Parasite drag and at 45 degrees in the middle of both, for a flap with no thickness. The fact that Lift and drag are both proportional to airspeed squared, means airspeed affects a 2 Dimensional surface, geometrically a Square plane. Wing Vortices are not the cause of Induced Drag but it is just a Visible Effect of it. I have developed a hypothesis to explain physical, atomic and subatomic (gravitational movements, Center of Gravity and Mass), however I need to validate my V & H surfaces theory first. It seems that Winglets reduce Lift and increase Drag, I also believe in turbance Winglets impose additional stress to wings and all other moving parts inside the wings like rods, joints and moving surfaces. Wingtips also decrease the stability and controllability in turbulent air. Simply put another british scam. Please let me know what you think, thanks.

I signed up for Brilliant via your link Sir! Great resource! Live the videos! Too late for me to fly commercial at your level, but perhaps a couple notches down the complexity scale.. Love the math and physics link to help me on my way!

Hi ! Sir •You are my inspiration ur voice and way to explain is unbeatable I like ur videos. •Just a question, Q How Many flight does pilot have to operate in 1week ? •Thanks sir

@MentourPilot

6 жыл бұрын

Hi! Thank you! That depends on what type of operation you fly. Anything from 2 to 20

They are waaaay bigger than I thought. Cool videos my friend. Just downloaded your app. Keep up the good work! Cheers from Greece and Amsterdam!

Excellent, I really liked this video, for all the technical details you provide. God Speed.

When I was an undergraduate at Rochester Inst of Technology, there was a mini wind tunnel in the lab and we did some experiments on these winglets. That was in late 1980s. It was fun doing these experiments on different types of winglets.

Great video Mentour as usual. Like that runway background!

@buddyclem7328

6 жыл бұрын

It's a runway for radio controlled model aircraft not far from where he lives. My local club only has a grassy field, and even one airfield is not paved. They must have lots of enthusiasts!

Thank you, Mentour Pilot, that was wonderfully explained. I imagined the height of the sharklet to be 50% taller than your height. I think I got it pretty close.

@MentourPilot

6 жыл бұрын

Yep, that’s pretty spot on

@jonnyzuko6146

5 жыл бұрын

Mentors pilot you are my fav youtuber

I always wanted to know what winglets were for!! Thanks for posting:)

when I was a youth, I remember reading in the 70's an article in Popular Science... about these new winglets that were going to be on EVERY plane...we;;, here we are!

I love your instructive videos!!! 🙌🏻🙌🏻. My first thought in the 737 winglets was three to four feet, but quickly realized the distance away. Then settled on about six feet. Eight plus!! What a surprise.

Great video Mentour, keep up the amazing work! 👌👌👌 I live watching them!

Excellent video. You explain those wiglets' benefits so well. Thank you

Enjoy watching your "lessons" about aviation. Keep up the great work. Very helpful and informative.

I had no idea winglets were that tall. BTW, love all of your video's. I love commercial aircraft and you've answered a lot of different questions. Thanks!!!

@MentourPilot

6 жыл бұрын

Happy to hear that you find the beneficial!

Wow, shocking on how wrong I was with the size. Almost dbl what I thought. Great video

Great video , Always fun to learn something new.

Wow! I thought they were shorter. Great explanation. I always enjoy and learn from your vids. Thanks a bunch

Damn those winglets are huge!

@MentourPilot

6 жыл бұрын

Yes they are!

@sparkplug1018

6 жыл бұрын

How tall are the winglets on a 747 then? 4 meters?

@sarahwickersham669

6 жыл бұрын

They are 6 feet on the 744. The 747-8 has raked tips. However, the 767-300ER has 11 foot winglets! They're huge. (Heights according to wikipedia, however I work around both aircraft)

@jeanntakirutimana7254

6 жыл бұрын

tell me about it

@tmreed

4 жыл бұрын

They look huge if they are right outside of the window.

I was so wrong......Great video! Thanks for taking the time to do these awesome videos.

@MentourPilot

6 жыл бұрын

Cool! I’m glad you liked it. Almost everyone underestimate the size of these things.

Thank you, thank you very much! An awesome tutorial!

Great piece of knowledge. Keep it up !

Great video matey! Keep it up

@MentourPilot

6 жыл бұрын

Thank you! I’m happy you liked it!

Good video. I always thought the 737 sharklet was much smaller. Could you do a video on the auto break?

@avamendez1272

6 жыл бұрын

7.3 IDI Diesel sharklet is on Airbus and they are taller. here are some stats: at 2.5-metres tall, they will replace the aircraft's current wingtip fence. presented as an option on newly built aircraft, Sharklets have been especially designed for the Airbus A320 family to reduce fuel burn by 3.5 percent. question 2: there are 4 phases to landing: final approach, flare, touchdown and de-rotation, roll out and deceleration. on the A320, the auto brakes have three settings. LO, MED and MAX. autobrakes are available on Normal Brakes (Green system) only. LO mode delays for 4 seconds after touchdown. MED mode delays for 2 seconds. MAX has no delay and is only used during takeoff in the event a rejected takeoff is perforned, it applies max pressure with no delay

@steinwaygrande9736

6 жыл бұрын

The auto brake is operated by a switch mounted in the center of the top panel above the flying instruments. Its graduated from 1, 2, 3, 4, and 5, If its a five, you pull the switch out towards you and then lock it into 5. 5 is very rarely used unless its a bloody short field and you need maximum braking. Use of reverse thrust is always used no matter how long the runway is . Thats to save in brake pad wear and tear. Hope that explains the use of the Auto Brake system

Very interesting and informative. Just subscribed. Thank you.

As always, very informative and well-presented.

Many thanx to u mentour, love your channel

@MentourPilot

6 жыл бұрын

Great to hear! Welcome to the channel!

I love your videos! I'm very interested in aviation and I'd like to know how much pilots rely on the autopilot systems. Thanks!

Thanks for covering this subject ! Having lived near airports my entire life I've noticed the changes in aircraft design, and wondered why jets were all of a sudden sporting upturned wing tips. You answered my question quite well and in a simple manner. Thank You. PS- my guess for the winglet height was 1.5 to 2 of your body height. I'm glad to see my estimation was pretty accurate

Something else i noticed since the advent of winglet tips, that may or may not be related: i find flights are much smoother than before and i don't get motion sickness any more. I used to hate flying in B707, DC8, 747 and tri-jets.

To explain wingtip vortices (in very simple terms), the air is moving faster over the top of the wing than the bottom due to the top being longer than the bottom and the wing is designed so the air meets up at the back of the wing. On a swept wing the air moves down the wing (or outward) as well as across it and at the end of the wing the faster upper air meets the slower lower air and it spins into a vortex. It takes a lot of energy to spin the air in the vortices, that energy has to come from somewhere and the only place that can be is from the plane, and that creates drag. Drag slows the plane down requiring the engines to work harder using more fuel. The winglets change the way the fast upper air meets the slow lower air so that the wing-tip vortices are greatly reduced. There is no one best design for this, the wing for each model of plane is different and the best design for each wing varies. The efficiency of the winglets changes as the air-speed of the aircraft changes. The design of the winglet determines where the winglet is most efficient and that choice varies depending on the roll the plane is planned for. Short hoppers will be better served by winglets the are most effective during takeoff and climb (and landing), long haul aircraft will best be served by winglets that are most effective at altitude and cruise. This is the exact opposite of a "one sized fits all" situation. Not mentioned in the video is the 787 wing is designed to flex a lot more than typical aircraft wings, the shape (curve) of the wing itself works to reduce wing-tip vortices without winglets.

@pleasedontfeedtheai2341

5 жыл бұрын

Thnx, enjoyed that little book! 👍

That typical Aviation enthusiast run at the end tho 😂

@CaptainBobSim

6 жыл бұрын

That is how I sometimes run!!

@tanmaypalkar9861

6 жыл бұрын

Captin bob cool

@Games_and_Music

6 жыл бұрын

Yeah that was pretty funny

@buddyclem7328

6 жыл бұрын

Best ending *ever!*

@archerr001

5 жыл бұрын

@@tanmaypalkar9861.?0m

as the way you explain everything is just amazing....thanks sir...

EXCELLENT! WITH COMPLIMENTS.

Love your videos man

Just l can thank you very much for my knowledge

Great video! Thank you so much)

Very interesting, I've enjoyed all of your videos. Thanks

Oh my gosh the winglets are ginormous!!! Went on a 737 before and from the window it looks quite small. Also, btw, this was a great video. Keep up the good work!

Nice job on inserting the winglet over the video picture you were in and getting the scale right. I guess you just had to know its height and your own and then just guesstimate it fractionally while scaling it in over your own frame, huh?

Excellent and full of chock full of info, subscribed .

Really good content! Thanks.

Great video

i love the end when he said is wasn't a green screen because I thought it was also till I seen the shadow from the camera on another episode

Good job ... Thanks for show the Great knowledge

very nice and simple explaination .thank you

Hey Mentour, you have uploaded this video in a perfect time for me. In about one week I need to finish my scientific school work which is exactly about Winglets of course. Your video has given me some last little things I can bring in my around 15 page scientific work. Therefor thanks a lot for your help and I hope you read this Greetings Florian

Always this legendary mini runway!😂

@joaoguilhermebraz343

6 жыл бұрын

Sébastien Dobbelaere legendary hehehe

@Enzi_Meteori_902

6 жыл бұрын

João Guilherme Braz !!!!!22

I know alot about planes and your videos give me more information. Thank You

I love the scenery, great video!

Dear Mentor Pilot, Wow! Here is an interesting fact for your books. I live on Mercer Island which is which is a stone's throw from downtown Seattle Washington. My son Robby Sotelo was and is a very close friend of the grandson who created the winglet. His grandfather tried in vain to convince anyone who would listen to put winglets on wings, but it all fell on deaf ears. So he patented it, and now every winglet you see in the world, he gets a cut of the profits. I also live on Mercer Island, and though I'm from the bicycle industry, my son and I are airplane nuts and your KZread videos are the best. Sincerely Dan Sotelo AKA Mr. onZa

@MentourPilot

6 жыл бұрын

Wow! That’s really cool to hear. Thank you for following the channel and send my best regards to your son’s friends, grandpa!

Hi mentour pilot, is there any difficulty by winglets while cross wind landing ?

@MentourPilot

6 жыл бұрын

Excellent question. We actually have slightly less crossword Nd capability with the Winglets than without.

@dwilliams2068

5 жыл бұрын

Got to be worse with double winglets. I recently talked with an old friend who has retired as a commercial pilot and asked about cross-wind landings. He said he just side slipped. Before he left engineering to be a pilot I took a short ride (instead of a drive) to Lindbergh Field. He did an extreme side slip and we landed in a parking area next to the then Ryan complex.

Very insteresting explanation, answering some questions bothering me for a very long time; when I was a child in the 60s it was natural for my siblings and I to make paper-airplanes, our goal was to make them fly as far as possible, so we started bending the tip of the wings, we discoverd these wing-tips added stability to these paper-planes, letting them to fly in straight line easier and reaching long distances, when I notice the industry introducing wing tip in the 70s I was amused, but until today I did not know the reasons, thanks for your video, I love them.

Thanks for the explanation.

Mentour: Makes a video about winglets Intro: *Uses a Boeing 777*

@screenpatch4146

4 жыл бұрын

Samuel's Simulations hahahhaha

10:27 this cracked me up so much!

@samuelwhaley6658

4 жыл бұрын

It wasn't even necessary because we could see his trousers blowing in the wind. But thanks for the laugh anyway!

Excellent episode, many thanks

@MentourPilot

3 жыл бұрын

Thank you! Glad you found it interesting!

Excellent presentation!

Great channel. Question. What are those "pods"that are hanging under the main wings. Hope that isn't a stupid question. If you have addressed this question, please tell me the name of the video. Thanks for the interesting content. Safe flying!!!

@MentourPilot

6 жыл бұрын

Great question. I will cover those in a separate video.

@billyoung497

6 жыл бұрын

Why is 757 vortex a special problem?

@eltigre249

6 жыл бұрын

They cover the flap actuators.

Be care full while on runway mentour a really useful log ." I have a question about how will you recognize the other planes flying parallel with you ?"

@MentourPilot

6 жыл бұрын

I am careful :)

@balajisharathkumar9753

6 жыл бұрын

:)

@ezanchi5422

6 жыл бұрын

You generally have two ways: Via TCAS radar or, Visually by looking at the plane lights you can more or less know where it's heading by the colors you see.

@Enzi_Meteori_902

6 жыл бұрын

It is his RC runway next to his house

So plain & interested - remind me old memories related to Aviation 💜🌹💜 Good job sir; respect

Excellent video!!!!

I see you're doing 737 Q&A... So my question: The vertical stabilizer on the 737 has a taper as it joins with the fuselage - a feature which wasn't present in the first Boeing 737s. Also, none of the other Boeing models has this feature. What is the purpose of this design?

@MentourPilot

6 жыл бұрын

Great question. I will have to look that up.

@sierraromeomike

6 жыл бұрын

Mentour Pilot thank you captain! :)

can u explain about crosswind, downwind & upwind

@TA-jl8cl

6 жыл бұрын

upwind is the direction you take off, because airplane always takes off against wind, thats why the name is upwind. crosswind is when you have the runway 45 degrees to your left or right, and downwind is when your are flying opposite the runway you toke off from. you will learn this better when you do pattern training

@kieranharvey4576

6 жыл бұрын

Crosswind - Flying in a direction where the wind is blowing accross the plane. Downwind - Flying in a direction where the wind is blowing in the same direction of travel. Upwind - Flying in a direction where the wind is blowing in the opposite direction to the planes travel (headwind). Terms mostly used when flying circuits as you always land upwind to get the most lift for a stabalized approach...same applies for take off. If you took off from a runway to do a circuit you would take off Upwind, turn crosswind, turn downwind, turn base then turn final (upwind again) to land.

Thank you for the content😎

I Have more fun watching your Channel than anything on here . you learn a Lot about Aviation This is More Interesting

Haha I figured that you weren’t on a green screen when I saw the wind moving your shirt and tie, but how are you out there? Do you do videos when an airport is closed?

@MentourPilot

6 жыл бұрын

It’s a small RC airport close to my house. 😊

@pauljameson1

6 жыл бұрын

Mentour Pilot Ah I see!

@biponacci

6 жыл бұрын

~~it’s a zebra crossing on an otherwise unmarked road

@robertkaczmarczyk2126

6 жыл бұрын

Mentour Pilot wi was going to say your just lucky and not getting hit but I prefere what you said

@Enzi_Meteori_902

6 жыл бұрын

Ok mentour pilot! I thought you are in a real port

hi mentour pilot. on the boeing 737 each winglet is 8 feet long and 4 feet at the base narrowing about 2 feet at the tips and is reduce drag

@josephking6515

5 жыл бұрын

Just to be picky, they reduce INDUCED drag which increases by the square of the speed increase.

Dang! All this time, I thought it was a seamless greenscreen. :) Thanks for covering this interesting component.

Explains aircraft parts very enjoyable and informative . Now I know what the function of winglets are!!!!!

Good info, thanks ! Now I can explain it to my technically challenged friends.

I've been waiting since 1974 to see winglets on commercial craft.

Very informative and enjoyable

Amazing aircraft the 737 reminds me of another "workhorse" the DC 3 .

Mentour some 737's have windows near the overhead panel why are they there and why are they not there on other versions of 737 and other aircrafts

@MentourPilot

6 жыл бұрын

The eye-brow Windows? I will see what I can do.

@shreyasjoshi5487

6 жыл бұрын

Mentour Pilot Thanks

@Zizzily

6 жыл бұрын

As far as I'm aware, the eyebrow windows were for astral navigation which obviously isn't a thing that's needed with all the advanced in technology like GPS and many other things since the '60s. I believe it reduces production cost, maintenance cost, and a bit of weight.

@leighs5048

6 жыл бұрын

So is all the added technology and computers why flight crews don’t include navigators anymore - or do some planes still have them?

@Zizzily

6 жыл бұрын

Pretty much. I don't think navigators are really used anymore, except in situations like certain military aircraft, like bombing runs and AWACS and stuff like that. Advances and simplifications in flight controls and the number of things that can run themselves is also why modern aircraft have lost the engineer.

Hi Mentour! I have one question, why the older 737 models have more cockpit windows than the modern ones?

@joaoguilhermebraz343

6 жыл бұрын

Pablo Lapadjian I can answer your question. Basically before the all technology the third person on the cockpit ( the navigator)707 and 727. Was responsible for navigation, and on the olds times during night we flew looking for out side the windows too, looking for Stars. The time passed but they continus be done with this windows.

@NoahFong

6 жыл бұрын

They're called eyebrow windows, they also gave pilots greater visibility in turns.

@John-pn4rt

6 жыл бұрын

Primarily because the original 737 shared lots of fuselage components with the 707 and 727. The cross section was the same and it meant they could use common components such as seats and other fixtures and fittings. If you look at a Boeing 707, 727 or (early) 737 the forward fuselage is basically the same.

@jpdemer5

6 жыл бұрын

Mentour has a video on that specific topic. The "eyebrow" windows turned out to have more downsides than benefits, and were dropped from later models.

Great clear, concise video.

@MentourPilot

6 жыл бұрын

Thank you! I’m really happy you liked it!

Excellent Sir.. very nice

On Boeing 767 raked wingtips are only on 767-400 also raked wingtips are incorporated on the Boeing 777-300 only. Cheers from San Francisco.

@MentourPilot

6 жыл бұрын

Yes, true.

@thatkojoguy279

6 жыл бұрын

Not really, they are also on the 777-200LR and also of the 777F

@alleycatvietnam

6 жыл бұрын

Hello, Thanks, I stand Corrected...

@elle8967

6 жыл бұрын

not 777-300 only 777-300ER

@alleycatvietnam

6 жыл бұрын

Elle, Thanks for the additional Update... Cheers from San Francisco, My last job was a Fueler @ SFO.

Can ice be seen on wings? How does the ice detection system work, and, what keeps it operational and from freezing?

@GaryMCurran

6 жыл бұрын

There are multiple kinds of 'icing' and most of it can be seen. 'Clear Ice' is just that, clear, almost like glass, but it's obvious, especially if you use Deice. Rime ice is like someone chopped up a bunch of ice and then threw it on the leading edge of the wing. It's bumpy and very easy to see. Wings, and engine inlets and such are not the only place that accumulates ice, the cockpit windows also will accumulate it as well. Ice detection can be a simple light that you can see shining on the wing, or a more sophisticated system that measures light and how it's diffused. Deicing can take many forms, the most common are Boots, Chemicals and Bleed Air. Boots were the first type of deicing to see any real success. They use a rubber 'boot' that fits over the leading edge of the wing with pnuematic tubes inside of it. When activated, the tubes expand, pushing the boots outward. It breaks the ice that has formed on the boot, and the ice is shredded, and falls away. Ernest K. Gann, in his book "Fate is the Hunter" recalls a trip in a DC-2, which is instructor told him was the greatest ice carrying airplane of the time, where they left Nashville, and picked up so much ice that it was forming faster than the boots could deal with it, and actually created a layer of ice over and around the boots, rendering them ineffective. Gann says if he had been in any other airplane, they would have died. Next is chemical treatments. You'll often see airplanes being sprayed as they taxi out for takeoff. They use different chemicals to remove and prevent the build up of ice on the surface of the wings and airframes. However, only recently, have chemicals been used in flight. Alcohol and other fluids have been squirted onto propellers to remove and prevent icing, but now, whole airframes can be protected using the 'TKS' deicing system. Developed in Britain during WWII, it was used for bombers. Today, it's actually certified for small, single engine propeller dirving aircraft. It uses laser drilled aluminum sheets bonded to the leading edges, and the fluid, a glycol based fluid seeps out onto the surfaces via the holes. The holes are 0.0025" wide. TKS systems come with a pump that runs at two speeds, the low speed is before you actually enter icing conditions to prevent icing in the first place (i.e., climbing or descending through an icing layer) or the higher speed to pump more fluid for ice removal. Bleed air is the next type, and is found on jet aircraft and some larger turboprops. It takes hot air, called 'bleed air' from the jet engine and moves to along tubes and radiators along the section of the leading edge of the wings, rudder and stabilizer to use hot air to heat the surfaces to prevent or remove ice on those surfaces. Some applications use electric heat as well, which is usually heated elements inside of a rubber boot arrangement. You would typically see this on a propeller driven airplane, on the prop. You'll also see electrically heated windshields instead of using a 'defroster' like in a car, which heats it from the inside. The electrically heated windshield is much faster and more reliable. On some older airplanes, again, smaller, General Aviation airplanes, you'll see a 'Hot Plate' which is a single heated element that lays flat on the regular windshield, and only the Hot Plate is heated. It reduces what you can see, you're limited to a few inches, but it also reduces the cost and complexity of a heated windshield as well. Hope this helps some.

@avamendez1272

6 жыл бұрын

Michael Galle on the A320, we have the SII, structural icing indicator. with the accumulation of ice on the indicator, it can be assumed that ice is also accumulating on the other exterior surfaces as well..wing a/i may either be used to prevent ice formation, or to remove ice accumulation from the wing leading edges. Wing a/i should be selected on whenever there is an indication that airframe icing exists. dhis can be revealed by ice accumulation on the SII located between the two cockpit windshields. Engine a/i must be selected on during all ground and flight operations, when icing conditions exist, or are anticipated, except during climb and cruise when the SAT is below -40C. Eng a/i on before and during a descent in icing conditions, even if the SAT is below -40C

Great video. I was going to suggest this as a topic, but you got to it first.

Sir I must say I've subscribed to ur channel cuz it's a brilliant channel and very interesting and I love all the facts thanx

8ft to 10ft

I can already tell you not at the green screen because of the wind😅

@ellenesardisco4523

5 жыл бұрын

Great video!

@yakuza01

4 жыл бұрын

His two dogs handling the fans off frame: "We fooled him, boss!"

Interesting to know about aircraft. Good presentation.

yes I like your video it makes flying so much understandable for a passenger like me that fly a lot

I think it´s woth to mention, that the raked wingtip is only fitted to the newer 767-400 : )

@MentourPilot

6 жыл бұрын

True

@thewaywardwind548

6 жыл бұрын

Don't the extended range 777s also have raked wingtips?

The 737 winglets are about from the ground to your pockets?

@j28esn

6 жыл бұрын

That would be incredibly low

@BFFsEngineer

6 жыл бұрын

each is 8 foot tall

@Enzi_Meteori_902

6 жыл бұрын

Small size!

@Enzi_Meteori_902

6 жыл бұрын

That is higher than me

@Enzi_Meteori_902

6 жыл бұрын

I am 2 feet

Way back in 1983/84, I was working on "Temperature Dependant Shape Changing Materials" at Cambridge University Dept. of Metallurgy. There were fatigue problems with Shape Memory Alloys, that could be solved, but introduced corrosion issues. The problem with 'Bi-Metal' strip material was low performance and/or corrosion. CIBA GEIGY had a fabulous facility at Duxford, very close to the Aircraft Museum. Composite materials looked very promising. Zinc for example has a very high coefficient of expansion. It was noticed that a bi-metal strip could double it's turning moment at a given temperature, when the interface was a sinusoidal wave profile. ...This in turn quadrupled the torque or turning force. Weight issues could be addressed by a CIBA GEIGY product known as "Pultrusions" ... semi-cured composite epoxy impregnated and gas free extrusions. ...It was simple enough to incorporate heating wires into the 'wave' profile. ... The intention of "Active Wing-Tips" was to allow the aircraft to minimise the formation of wing-tip vortex initiation. ...Rather than have a single thick section, a sliding laminated stack was seen as advantageous. ... I was also reading Comparative Theology, as a Military Chaplain, and the issue of Life-form Patents was very contentious. There was a movement to boycott all Patent Protection as a form of protest. A "Publish and be damned" policy. ...The result was that no funding was available for continued research.

Thanks for the videos. I fly from Sfo to manila once a year.

I think the 737 winglet is equal to your height!!

@MentourPilot

6 жыл бұрын

Great! Check out the full video!

@bhavyatalwar

6 жыл бұрын

Mentour Pilot wow!! I thought it's gonna be a bit larger but its much bigger!!!

@djeletropopstarify

6 жыл бұрын

I think it's serves for like for saving gas and it's around your hight

@jgonzalesm6

6 жыл бұрын

Winglets are 10ft high.

@Kargoneth

6 жыл бұрын

Ditto.

It's a bit bigger than I thought, even when close to these planes they do not look that big!

@joaoguilhermebraz343

6 жыл бұрын

bob4jjjj 1.70 meter's or 6 ft

@joaoguilhermebraz343

6 жыл бұрын

bob4jjjj 737-800

@BoB4jjjjs

6 жыл бұрын

João Guilherme Braz: Wow, they don't look that big when close to them. Thanks.

@joaoguilhermebraz343

6 жыл бұрын

actually they are 2,10, 1,70m are of embraer 195. sorry

Wow.It's very informative video.

Love this series, I watch it all the time, very informative. Now, aside from winglets, how do pilots manage power settings and fuel consumption in-flight as the aircraft gets lighter due to fuel consumption?