I see you guys got me beat as I spent 30 years at Boeing on the 747, 767 and 777 line and installed the canoes on many of those planes. Those air pods were known in Boeing as canoes. Even Mentour briefly mentioned the air pods as canoes at the beginning the video.
I was the buyer at BCAC, group T5634, in the POP department, for the 767 trailing edge flap support fairings (called "canoe fairings") in the early years of the 767.
The level of Professionalism on this channel, and the Mentour Pilot channel is overwhelming in my opinion. It has been my good fortune to listen in and watch. Thank you Sir.
As a non-pilot I love “how it works” videos! As a licensed commercial driver I recognize the necessity of a pre-trip inspection and the importance of a working knowledge on all of the systems and sub systems to be checked. So even for pilots and aspiring pilots, videos such as this could be invaluable! I vote you continue doing more of these type videos! I see now that I’m a lil late to the party tho...lol
Old saying with a new variant:"There are many old pilots, and many bold pilots, but not too many very-clear-communicating pilots" - you are one. Well done and very much appreciated. Liam
there are so many reasons i love this channel i'll list some: 1. he's engaged with the community 2. he gives a detail answer and doesn't just give 1 answer but answers it function and how it works. 3. he's a pilot (my dream job) 4. he's always positive 5. the videos are always fun. keep at it man.
Really awesome that a pilot knows so much about the engineering and mechanics of the machine they’re flying. I’m no pilot but I really enjoy these videos. Thanks and keep it up!
Yep, pilot’s are expected to know their aircraft inside out, even private pilots have a technical exam to pass, airframe, systems, fuel systems, navigation equipment etc.
I haven’t done a type rating but know pilots who have. Mentour knows an exceptional amount but I think you need to learn a good 75% of his knowledge to get typed on an airliner. All pilots get into the weeds during training. Some of us forget a bit. Mentour learns more.
The best airline pilots are often former military pilots or mechanical engineers... Not only do they understand how to fly, but they understand the physics of how and why things are happening...
I'm an employee of the company that builds 737's working in wing systems cc128.We install flaps,slats,engine struts,landing gear actuators and all fuel systems.I have personally installed hundreds of flap tracks,flaps and flap track fairings.I'm also the lead mechanic on 737 P8 and have worked on over 6,500 airplanes including 707,737,747 and 757.If you have any specific questions about 737 wing systems manufacture or operation feel free to ask them.
I am an old civil pilot , just retired and of course I enjoy your videos. Congratulations for your fine work and your time too. Best regards from Montevideo-Uruguay
Even though English is obviously not his first language, he is still very clear in explaining a concept without stuttering. That is a job well done that is tough to do.
Nobody gives a rats ass what his first language is!! he speaks perfect English!!, there are over fifty countries where the official language is English and in those countries, they have their own accent, some of them even speak more than one language, not like those self-centered Americans, why can't people just appreciate and enjoy, when someone took the time to post something informative??
He has a VERY typical Swedish accent, which is fine. Great vocabulary and fluency. I just wish that he would stop pronouncing "thrust" as "trust". Keep up the good work!
@@shanebond550 What I refer to, that you completely missed, is an educational concept. Many use English words in a very vague sense to communicate a concept. His English is so clean and to the point were he can explain a complex concept to an uneducated audience and still have them learn something from him. The ability to do that requires a very refined communication skillset. With some, listening to them is a painful ordeal as they meander. He is clearly educated in his ability to explain a concept to be immediately understood as opposed to contemplating his presentation at a later time. There are not that many who can speak so clearly and is almost entertaining to hear any presentation.
I've watched those flaps extend on many an airplane coming in to land, I am always amazed by the rigid strength they have as they get buffeted by the air. Now I know why they are so strong.
I’m not a tekky person and I don’t understand the basics yet, but I love the mentality of Captain Mentour. Really focussed and well-argued. Gets to the reason why and doesn’t indulge in any kind of exaggeration and pointless window-dressing. I wonder how closely these video explanations replicate the classes the Captain’s lectures gives to his actual trainee pilots?
@@ronaldpellet854 Can you give me A Chance for Work I do Asset Manager, Accounts Manager, Transfer Handle, Audit Purpose I Do work with Safe And Secure
This narrator is obviously German or Germanic, and I marvel at his proficiency with our very difficult English language. I had always wondered about those pods too. He did a very good job of explaining them and all the other details here. Excellent!
Yes PETER PUTS UR HEAD IN ORDER, WITH NO FLAP U SAY LONG RUNWAY WHAT IF IT WAS SHORT RUNWAY WATCHED SMALLER PLANE LAND WELL IN TREES 50 SOULS BUT PILOT TRIED AX ON HIS WINDOW HE DIED HAVE THEY GOT QUICK 737 FAST EJECTION NOW? PAINFUL HOW HE PASSED.(WOW Impressive ur plane used by military & .issues too.always give u thumbs up,ur huge in USA but in dark on " knots other European ways of numbers re hours etc can u add English 2,great Voice Hand gestures help understand what u say as u speak quickly..10+
5:30 I love your "Flap Skew sound!" I know its been said millions of times but you really do a great job making your videos! Your in depth explanations and examples really help in understanding what is going on! Thank you so much for all the time and hard work you put in these videos, it is very much appreciated! Take care and all the best for you and your family! 👍from the USA!!
I REALLY enjoyed your video. My daughter has started a phd program in atmospheric aerospace engineering at the U of Texas and I try to check out aerospace broadcasts like this so I understand what so intrigues her. You are a great teacher: clear; you speak in simple terms, and when you personalize your broadcast with your stories of problems you have encountered as a pilot, it makes the understanding so much easier. Thx.
The more I watch this stuff, the more I come to believe that in flying, your life is as much if not moreso in the hands of the mechanic than it is the pilot.
Actually there's no real pilots any longer. They already are semi-robots because the new technology does almost the all lot. Real pilots are in the Airforce. Commercial pilots have poor skills.
Antonio most pilots received their training in the military, many are retired from the service after 20years.I suggest you check it out before you spout off.
@@robertnielsen2461 most it doesn't means all! Your own words are conflicting. When the fighter pilots turned as commercial pilots obviously they loose flying skills. Like it or not, fighter pilots have better flying skills.
I'm only an airplane enthusiast and I really like your videos! To me they're spot on. I really like understanding the technique behind plane mechanisms. Thanks again for all your videos! Charles
Your english is outstanding and your delivery and competence in explaining complex information is second to none . Well done , if you retire from flying , teaching is waiting for you in any area .Keep making these amazing clips .
Petter, as a non-flier but someone who has a fascination with flying (and has a 737-800 sim) I find these demos absolutely fascinating and this one answers a long-held query. I am really pleased to have found your UA-cam site and give my thanks to you for taking the time to help out others.
As an electronics engineer myself, though retired, my first job back in 1972 was in aviation. I was doing avionics servicing in general aviation from the smallest planes up to cargo DC-4s and a couple executive jets. One of the reasons I got hired at that as my first job out of school is that I was an aviation groupie. I knew those pods were the flap actuators but did not know before how they worked. I am sure many will find the tech stuff boring but for me, bring it on. You cannot get too technical with me at least.
@@redblade8160 I never worked on aircraft that had flight attendants. The Cargo DC-4 flew supplies to a uranium ore mine in the middle of nowhere and brought back tightly sealed barrels of uranium ore. It was general aviation work. Where I was dispatched to planes around an industrial airport and never met the flight crews or plane owners. So your assumption of getting involved with gay stewards is an entirely unjustified assumption.
Modern airliner engineering is a marvel. The engineering behind the passenger experience is unbelievable. Thanks for taking the time to explain to us all of these aircraft features. Your channel is great man keep it up!
This is neat. I remember these hydraulic motors and torque rods when I worked as a baggage handler for a major airline from 1988 to 1992. I was 25. They took us into the landing gear bay just to show us the manual fire suppression release, but I also remember these huge motors and a maze of hydraulic lines. Working out on the ramp with these aircraft was the best job I ever had. We flew the DC-9, MD-80, 727-200, 737-200 & 300, and our big daily was an Airbus A300. Thanks for the video, I never new they hid the motors in those fairings.
There are no hydraulic or electric motors within the canoe fairings. The drive motors are located in the wheel well and turning motion,( torque) is transferred out to the jack screws through a series of torque tubes and gear boxes . Even the gear boxes and torque tubes are located in the aft wing wells and not the canoe fairings.
I cant list any improvements to make since there really aren't any improvement to make, the channel is flawless for what it's trying to achieve, which is inform people on various topics in aviation. more cockpit videos would be interesting but as far as content goes, don't change
I can, literally every video you has a simple question and an absurdly long answer that could be summed up in a paragraph. Have that paragraph in the description.
We all do. Teachers are busy spreading socialism and racist propaganda... thats all they do. Thats why our kids cant think or read well or deal with science. No new welders or plumbers or carpenters ... kids are told how racist they are and that the environment is doomed. Yet the leftie leaders have massive houses and fly everywhere. And dont wear masks. Thats for the lowly idiots to do.
They are, but they have a class full of kids and some dweebs choose to be twats and the teacher spends the lesson dealing with the dickheads while you miss out on what they could impart. It’s easy on UA-cam, this guy can talk and his audience can’t affect anyone, so you get a one on one. Just think before leaping. Teachers cop it in the neck because the government keeps the idiots at school instead of pissing them off to boot camp or disciplining them.
Thank you for your informative videos, Captain, I absolutely love the B- 737. I’m a US Army Veteran, and a G.A. Pilot, and the nephew of a US Air Force B52 pilot, (and several other pieces of Air Force equipment). I’m very grateful for the knowledge of any instructional videos or face to face aviator knowledge shared with me. Flying has always been my passion since childhood. I’m absolutely a free spirit when I fly alone, and I absorb what I can to fly safe and to always be prepared for any situation. God Bless You, Sir, and thank you for your contribution to aviation. Hand Salute Rendered.
Yep! I love the depth on this channel. I knew it was the flaps mechanism, but then video of actual motor for the flaps in operation, stuff about FSEU and other flap related systems. Same with the "Why no main gear doors on the 737" video. Simple answer would suffice, but here's all this extra information on it. Top quality content.
I agree, not to diminish Captain Joe- he does a great job- especially with all of his analogies. Mentour Pilot acknowledges everything and always makes sure you know almost everything.
They both target different audiences and both do a good job making videos with their target in mind. Captain Joe targets the general public, while Mentour targets enthusiasts, pilots in training, current pilots, etc.
I was a little bit nervous about flying. I knew deep down inside that pilots very well knowledgeable however turbulences, take off and landing still put me on the edge of my seat. Now, after watching your videos about all these, reassure me about flying. Thank you for a job very well done.
I was a Jet Mechanic in the US Navy during the Vietnam War and worked on Pratt&Whitney TF-30 P408 engines. After looking at those photos of the Fearing gear assembly I forgot how much safety wiring we had to do on Jet aircraft engines and any other moving parts on the aircraft. Every nut and bolt and fitting were safety wired to each other to prevent the nuts, bolts and fittings from coming loose in flight. The real fun was safety wiring the engines combustion cans at the center of the engine. There were always a few combustion cans that were hard to get at and you had to use a mirror to see what you were doin. Thus you were observing a reverse image in the mirror while wiring the combustion can bolts. It was a challenge and took a little practice.
Found this channel today and subscribed right away. Been subscribed for about 2 years to 74 Gear and love Kelseys’s videos Now I have a new channel feeding. My dad was an instructor polot with Western and Delts doing recurrent training on 727’s and 737’s. I got to go down a couple of times to LAX and fly the full motion simulators. He started in the Air Force and flew B-25’s, -26, and then -29 then end his Air Force career in Vietnam in B ‘52s. My hero.
When I was a kid, we called them fake engines... :D Thanks for teaching us about this subject. I know nothing about aviation but this channel has been so interesting to follow!
Keep making these videos. They are very interesting. I for sure am getting so much out of them. I find aviation fascinating. I have learned so, so much. Thank you.
Nobody normally talks about these subjects so we go along flying or not flying on planes not knowing anything about flight or how it operates. In the blind.
Always enjoy, listening to you no matter what parts of airplanes or crashes, you’re talking about! I particularly enjoy the “sound effects” in this episode!
These pods under the wing are the trailing edge anti-shock bodies used on the Handley Page Victor bomber, commonly referred to as "Küchemann carrots" invented by Dietrich Küchemann, who worked for the Royal Aircraft Establishment. They greatly reduce drag. Kuchemann is also credited with the Coke-Bottle 'area rule'.
You're 100% right. This isn't really covered in the video, but the reason the pods are where they are, and they are the shape they are, is due to the Transonic Area rule (as the Coke-Bottle rule is properly called). Most 3rd year Engineering students learn how to derive this rule when studying supersonic flow. Basically, supersonic flow can "choke" when "turned" too much by a rapid change in body geometry. From this concept, the ideal "cigar" body can be derived. This is more obvious in some planes like the DH Comet, where some of these concepts were implemented for the first time.
My old man was a recirculating ball screw designer. I grew up with this stuff... He and a friend designed the screws for the C5 Galaxy kneeling system. They are HUGE!!!
Captain, every one of your videos on aircraft systems has been highly informative. I am no longer a young man, and an ATP is not in the cards for me. Just the same, it is heartening to see you lighting the way for prospective pilots. Please keep up the good work!
I am not an engineer but I have curiosity to learn something about planes. So I am learning. Herein , the video is simple, pursuassive, any passionate learner can learn easily. It's good and helpful video for the person like us. - Damodar Boruah, Author Born To Do Big, India
I know this video is years old, but just wanted to say that back in the day, I got my Enlisted Air Warfare Specialist (EAWS) on a P-3 Orion. I never got to see the P-8's. And yes, you could also arm the P-3s. Thank you, ET1(AW) Hargraves
In 1971 the track roller bearings on the 737 wing were causing problems. They would lock up, shear the cotter pin holding the retaining nut, unscrew the nut and leave the bearing lying in the nacelle you see on the cover picture. There was a bulletin on the 737 to re lubricate the track roller bearings every 50 hours. I was a Sales Engineer working for McGill Bearings who manufactured aircraft bearings. Boeing was my customer. Larry Blakley, structural engineer assigned to the 737 wing asked me to become involved in the problem. The application and problems were similar to fish cleaning machines in Alaska (manufactured in Seattle by one of my customers) which had been solved by my efforts With support from McGill engineering dept, I proposed a solution. Last I heard, the test aircraft at United had flown 7 years without lubrication or failure. I believe my effort contributed to the success or the 737 aircraft. This scenario would not happen today because the mechanism has been replaced by computer software. Did I get rich, no, I was doing my job. McGill Bearing made a bunch of money! Iguana
I really like having a pilot explain all the different functions on an airplane. I like knowing these things; it makes flying so much more interesting.
I remember the first time that I boarded a plane back in 2005, i was 5 and i thought they were there to make the airplane float in water 😂😂. Don't ask me why. Great video as always Petter
the flap track farings in slang are often called "canoes" due to their appearance. the forces involved by such actuators is quite significant and the reason why such are "pinned" during maintenance operations to avoid potential fatal accidental actuation during maintenance operations (such pins being treated as surgical instruments during medial operations and carefully accounted for so as to prevent being left behind before aircraft is put back into service)
My favourite part of this video is at 5:30 I could listen to this for hours! P.S. Keep up the good work! I love your channel, you answer questions I’ve wondered about for YEARS - JD, Montréal
Lol not so much when you realize how many moving parts are on a jet airliner and statistically the more moving parts you have the higher risk of failure you have.
But if it makes you feel better you're more like to die by choking, drowning, or in an automobile than you are in an airplane. Statistically it is to date the safest way to travel. Lol
@@tonyjlorns1727 ? I'm not sure what exactly you're saying here? I worked on powerplants of jet aircraft for a long time I know how the religious safety checks as you call then go. Lol Even with that no matter how maticulis safety checks are that doesn't change the fact that the more moving parts something has the higher chance of failure it will have.
@- haha gosh dam I guess I have to prove I've worked on jet power plants to some nobody grammar Nazi on UA-cam. FYI I was an aviation machinist mate that worked on legacy, super hornet, and growler fuel cell and powerplants at both I level and O level. I've literally rebuilt jet engines from the ground up and tested them on test stands and in aircraft.. I've done everything from full breakdowns and rebuilds to routine maintenance on every single type of F18 ever made from A to G. I'm very well acquainted to how maintenance is performed in the aviation industry.
So amazed and proud of how far this channel has come 👏👏🥂🥂 I'm going back to these older videos to watch what it is I missed all these years ago 🙏😘 Well done Petter!!!
Video gets a like: - Title posed a question that piqued my interest but I didn't want to spend to long on it - And you gave the answer to the level of detail which satisfied that interest in the first couple of minutes Thank you for doing it like that and not trying to bait everyone to watch the entire video when they may not have the time
To complete what you said: these trailing edge pods also reduce the wave drag which appears at high speeds. This is why they are so bulky (they could be slimmer if their role was only to cover the flaps mechanism). When this aerodynamic effect was discovered, a few aircraft like the Convair 990 were designed with dedicated "anti-shock bodies" on the trailing edges. Aircraft manufacturers later found it much more efficient to combine them with the flaps fairings.
Shocks begin to form on the upper surface before the bottom. Obviously because the upper surface is where the air accelerates. The lower surface on modern aircraft such as A320 family and forward use the super critical airfoil that incorporates a trailing edge cusp to also mitigate the formation of shock waves. I would be cool if the fairings stayed on the upper surface like the 990. My intuition says that took up wing area on the lifting surface.
Antoine Bonnet Except,.. That doesn't come in to play here. Good Explanation of why it would at mach-+. But these, as in most Boeing "Commercial" Aircraft. Is for ease of removal and maintenance. And hence their dimensions. Tolerances at less than Mach, are less critical. Just a simple explanation from a 49yr Boeing engineer.
@@tonybalogna123 But these are just aerodynamic fairings to cover the flap tracks. And they are only held in place with a single row of screws around the top of the fairing. Which in itself shows they don't normally experience much turbulence,.. normally. And why they were a bit larger than they technically had to be. Again, for ease of maintenance too. They are there to protect the flap tracks system from dirt and debris. And keep crap out of the gobs of butter lube within. And those are Technically Called "Torque TUBES",.. not torque rods. You have to be Good at Safety Wiring those, especially on the 747. A torque tube nightmare. Trust me 😬 Those fairings on the 747 were big enough for a 12 person Canoe 😂 ... if you screwed them together of course 😊 The 47 was my fav. And in the old days. If you know what final assembly is. Final Assembly is were you bring all the aircraft sections together. Body, Wings, Gear, Control Surfaces, Electrical Systems etc. And assembly the complete airframe. Minus most of the interior, engines, paint,.. that sort of thing. Anyway. We were assembling a 747 every 3 days, with no travelers (100%) for almost 3yrs. Till the cycle changed again. We were building them faster than they knew what to do with them 😂 Good Times. We had fun 🤗 Which reminds me of a term few people have ever heard. "Crease Backup". You get a ⭐ if you can find that one. ...other than this comment 😏✌️
@@My-Pal-Hal Love the explanation. Not gonna lie, the "anti-shock" explanation does sound a little sexier and exciting than just an ol' safety cover for the flap mechanism... but I've asked a few engineers now, and they all pretty much say the same thing you're saying.
You are doing a really good job explaining the various system of the aircraft. It's really useful for me for passing my Easa modules for Aircraft maintenance licence
It’s impressive to me how effective you are at explaining complex topics in simple terms - especially when I consider that you are not a native English speaker. More information on the various systems of the B-737 and the military version of the aircraft would be most welcome. Thank you for the significant effort and care that is so evident in your videos.
Nice teaching about a detail of an aircraft. Most people who look at an aircraft when boarding or during flight have no idea about those details. Just call those fairings "Flap Track Fairings" and not flap fairings. The flaps as such do not need fairings. But the tracks where the flaps move along when extended and retracted plus the the drive mechanism is that part of aircraft that needs an aerodynamic fairing. Those fairings have also a second function: They reduce the overall drag of the aircraft when flying faster than Mach 0.75. It has to do with the "area rule" of low-drag transsonic aircraft. When you take cross-sections 90° to the center-line of an aircraft you can see that the areas of those cross-sections become much larger at the locations where there is the wing in addition tho the fuselage. The aerodynamic laws do create additional drag when this area suddenly becomes much smaller. This is the case at the trailling edge of the wing. By adding addidtonal streamlined bodies that "bridge" this down-step of cross-section at the aft end of the wings will reduce drag at high Mach numbers in subsonic flight. See also Wikipedia "Kuechemann Carrot" / "Anti-shock Body"
WOW! So much detail, I'm just a regular guy who flies on their annual leave but this is SO interesting for the curious holiday maker. Thanks for sharing.
@@polish001airigami5 I wish for you to find out how much fuel for a journey. See how much it is and how many containers you need. Where is it? It's not on the plane. 9 buses of fuel, its impossible. No fumes of fuel burnt. Look at the zeppelin, that travelled around the world, ON AIR. no gravity. Just electro magnetism.
I just wanted to say, Petter, that the Mentour Pilot videos are so much better than their competitors. I used to fly frequently as part of my work, flying transatlantic and within Europe, so I learned a reasonable amount about aviation matters. Your videos, however, show me that I knew very little in reality and understood even less. Please keep up the good work!
One can never know too much about the systems used on your aircraft or indeed, any "tool" you use. Please do keep making videos on flight systems, and when applicable, compare them to alternative systems used by different manufacturers. I appreciate your excellent videos!
Flying an aircraft is still a dream for me but being with you through your videos simply indulges me so deep that i sometimes feels like living my dream. thanking you and waiting to see you in next video.
Mentour pilot,(Petter Hornfeldt) love your videos in your unique Swedish accent. Used to be a student pilot in the late seventies.. Now i am into own Pharma business. But the flying bug has never left me. Your videos are so detailed and informative.. and explain all possible doubts about the technicalities in commercial aviation. Thank you once again. Keep doing your Great work.
I love watching your videos. I have been in aviation maintenence for 40 years and love seeing a pilot know so much about all the systems in an aircraft. Keep up the good job.
I was on a flight where one of these “pods” was loose. When the flaps were down the pod shaked wildly. When the flaps were up the pod was hanging down but not shaking. We landed ok but it scared a lot of the passengers.
Yet again the author is full of shit. Pods wouldn't create "enormous amount of drag". The most important parameter when calculating drag is the area measured from the direction of air. When packing in something you increase the area, thus the drag.
@@UA-cam_Stole_My_Handle_Too You misheard him, rewatch it and turn subtitles on starting at 1:30. He says "the pods are there to *streamline* the air as it's flowing through" and "IF the pods *were NOT* there, it would cause an enormous amount of drag." Literally says the pods decrease the drag. The trailing flaps cause the drag, not the pods. The pods support the flaps and decrease drag, as well as help make sure the flaps are extended equally to create even lift/drag on both wings.
Speaking of landings... (sorry, but this might be a bit off-topic, but I was hoping you might be able to steer me in the right direction nonetheless...) I was a passenger on a plane in May of 1998 that had a near-miss with another airliner, at LaGuardia. I am talking about a big airliner, landing on runway 22, coming within 20 feet or so of another that was departing on runway 31. We went over the departing plane, as our pilot abruptly pulled up and gunned the engines, calmly announcing that we were going to go around to take a little sight-seeing tour of downtown Manhattan, which we did do (aside: our view of the WTC led me to imagine what a terrorist might be able to do to the WTC if he had a plane this close -- as close as we were -- to it). I realize this was some time ago, but it was such a significant event that I cannot get it off my mind. Since I did find a very similar (but not exactly the same) occurrence that also happened at LaGuardia, within the same timeframe (Friday, April 3rd), I thought that this might have been it, but it isn't happen at the right time (it was at least four weeks, and perhaps as much as six weeks earlier). I know the date of the near-miss that FAA has on its website (Friday, April 3rd, 1998) and I know the date of the event that I was attending, the '98 SAME Conference (Society of American Military Engineers) in midtown Manhattan (19th-20th May). From memory, I believe that I took the flight from St. Louis Lambert to LaGuardia I have found another event that was very similar in the FAA logs, but it just was different in a few specifics, and possibly off on the date by several weeks... I have reason to doubt this was the one, but still think it probably was just yet another near-miss at LaGuardia. Apparently, this incident was never reported or recorded. I didn't report it. That's what's interesting to me, there were so many people involved, pilots, tower controllers, passengers, and the incident so potentially horrific, it surprises me that there is no documentation of it. Any way to remedy this, at this late date? Or, specifically, to find out if there might not be some record of it, after all, in FAA ledgers? Thanks.
Yes, the technical aspects of aircrafts is gaining information that I refer to as a puzzle to be filled in with each piece of the puzzle. In this video in addition to seeing what these pods do, and the approach used to solve problems that can happen. I also realized why some fans addressed the question if the aircraft could be armed? It does have that appearance if one knows they are there. Continue doing what you do you do it very well as your fans have so often written. You do space the technical with incidents that happen that is also a source of knowledge that blends our learning and interest.
Wow, I’ve always wanted to know this myself, as I fly frequently. Passenger jets are a wonder of technology, but I’ve always been fascinated by just the design, thought, and engineering that goes to just the wings structure alone.
I was a passanger once when flaps malfunctioned and we landed with a bit more speed. You have great videos on tech that has always interested me but the stuff I never botherd to look for and understand better. :) Getting just enough deeper into the rabbit hole from my current base knowledge. Thanks yt for offering these after searching basic stuff on airplane and helicopter flying :)
I fly a lot. I'm amazed at how LITTLE the average human knows about what even makes a plane fly. Most people don't know how ANYTHING works. I think people should at least take a small interest in how basic things work in life. Nice job explaining this.
Thank Captain! I appreciate the technical details you describe. I believe that it only makes sense to know as much as you can about what happens behind the scene when you push and pull any switches on any machine you are operating.
So basically helps the air craft with drag and lift on landing. The pods are quite big as they have to be strong and sturdy to hold mechanisms. That’s the 10 second summary
8:50 It's a big deal if the runway is very short, f.ex like in Funchal Madeira. It is extended but back in 1979, it was kind of dangerous. I remember we stood waiting for the plane while the pilots did some rounds back and forth before, we were allowed on board. The pilots tried to find the right speed without passengers, so they better knew how fast they had to go with passengers. It was a Boeing 727.
Many, many years ago, I believe I was in a Boeing 727...or if not, some other airliner with only rear mounted engines...and on landing approach, looking out my port side window, just at the trailing edge of the wing, I watched a similar fairing flapping around rather loosely in the turbulent airflow. It had broken free on its lower extreme. The only remaining anchor point was one or more rivets on the top of the wing. flap, Flap, FLAP it went until...it disappeared, fortunately not being ingested by one of those rear mounted engines. I then learned that the fairing covered part of the threaded shaft drive that operated the flaps if I recall correctly. I stayed onboard until all passengers were gone...so I could let the flight crew know their plane was shedding parts! 😳😳🤣
When gazing out of the passenger window, I always thought these pods/fairings served the same purpose as the Whitcomb body, also known as the Kuchemann carrot. Shows how much I know. Great video, MP - thanks for educating me. ;)
An aerospace engineer once told me that they are factored in in a form of area rule, although most airliners are well subsonic....but they simplify the flap actuator design and make maintenance a lot easier while minimizing the need for a lot of access panels on the wing surfaces.
You are a good pilot. One of my favorite airplanes is the Junkers Ju52, I like its flying characteristics. It has just one long wing control surface that functions as a flap or aileron. About the missile carrying capability, almost all big planes have strong points under the surface skin on the wings and fuselage. Devices can be attached on these strong points such as radar pod, scientific instruments and sensors, sea rescue pod, rockets for boost takeoff, missiles and bombs and even engine transport. The last one, an airliner can carry an engine as frieght (usually when a repaired or faulty engine that needs to go back to their maintanance centre)with passengers on board. The engine is slung under one of the wings and while flying, the pilot trims the rudder for the extra drag on that side.
US Navy P8 Poseiden is the armed version of the 737, wing mounted harpoon anti ship missiles and bay mounted Sono buoys and/or torpedoes are it's arms compliment. It replaced the P3 Orion.
All of what you said about the flap mechanism fairings is correct, but you left out another major function which has a significant effect on their contour: their use as anti-shock bodies. These fairings are frequently larger & a different shape than what's necessary for streamlining or covering the mechanism because they're used for transonic area ruling. Thus, they are performing the function of a "Whitcomb body" or "Küchemann carrot" at the same time as they're covering the mechanism. Most often, folks associate area ruling soley with supersonic aircraft and with "Coke bottle" or "wasp waist" shapes (i.e. F-5/T-38, F-106, etc.), but transonic drag reduction is also important and other areas can be used to do area ruling.
You could definitely side-port mount guns in a 737 and the aft cargo deck is effectively over open space in the lower fuselage so it'd be possible to install some doors there for a sealed-out pod for a few small cruise missiles but the wing structure and height of the plane off the ground would make takeoff and landing almost impossible if anything more was protruding beneath it. 767 is the far better plane for thinking about arming a twin engine boeing. Or you could just tell an airbus "that's the runway" and jump out.
Those are experimental new seating spaces for RyanAir, reclined seat only.
Id try them!
“Pod Seats” also commonly known as “flying body bags” in RyanAir’s case...
Since they will lie-flat, there will be additional charge.
LOL they would never allow passengers to recline that much.
Wing view seating
I worked for Boeing for 39 years and made the flap mechanisms in the pods on all the Boeing jets.
Great work from great people
I also worked at BOEING for 39 years I worked in the machine shop,and saw a lot of theses parts in the shop
I worked in Everett
Relax everyone. Tom was well-supervised. 🤣
I see you guys got me beat as I spent 30 years at Boeing on the 747, 767 and 777 line and installed the canoes on many of those planes. Those air pods were known in Boeing as canoes. Even Mentour briefly mentioned the air pods as canoes at the beginning the video.
I was the buyer at BCAC, group T5634, in the POP department, for the 767 trailing edge flap support fairings (called "canoe fairings") in the early years of the 767.
The level of Professionalism on this channel, and the Mentour Pilot channel is overwhelming in my opinion. It has been my good fortune to listen in and watch. Thank you Sir.
Calm down, this isn't charity work.
This is the mentor pilot channel
“skew the flap like NYYAAA”
gotcha captain. clear as day.
That's the sound of an electric motor binding up !! Its more of a aaannyt !
I don't know Where you get a NYYAAA !!!🤣
This is the kind of teacher I want. Detailed and realistic 5:30 7:55
So true!!!
haha my physics teacher was like that
😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂
nnnNNYAAA
My kind of teacher teaches me with those air to surface missiles he promised us...😒
As a non-pilot I love “how it works” videos! As a licensed commercial driver I recognize the necessity of a pre-trip inspection and the importance of a working knowledge on all of the systems and sub systems to be checked. So even for pilots and aspiring pilots, videos such as this could be invaluable! I vote you continue doing more of these type videos!
I see now that I’m a lil late to the party tho...lol
Old saying with a new variant:"There are many old pilots, and many bold pilots, but not too many very-clear-communicating pilots" - you are one. Well done and very much appreciated. Liam
Liam Mcerlean
You have messed around with that saying and created your own version (and it's pathetic).
there are so many reasons i love this channel i'll list some:
1. he's engaged with the community
2. he gives a detail answer and doesn't just give 1 answer but answers it function and how it works.
3. he's a pilot (my dream job)
4. he's always positive
5. the videos are always fun.
keep at it man.
Really awesome that a pilot knows so much about the engineering and mechanics of the machine they’re flying. I’m no pilot but I really enjoy these videos. Thanks and keep it up!
I am not sure if thats common...
More and more nowadays, he is expected to.
Yep, pilot’s are expected to know their aircraft inside out, even private pilots have a technical exam to pass, airframe, systems, fuel systems, navigation equipment etc.
I haven’t done a type rating but know pilots who have. Mentour knows an exceptional amount but I think you need to learn a good 75% of his knowledge to get typed on an airliner. All pilots get into the weeds during training. Some of us forget a bit. Mentour learns more.
The best airline pilots are often former military pilots or mechanical engineers... Not only do they understand how to fly, but they understand the physics of how and why things are happening...
I'm an employee of the company that builds 737's working in wing systems cc128.We install flaps,slats,engine struts,landing gear actuators and all fuel systems.I have personally installed hundreds of flap tracks,flaps and flap track fairings.I'm also the lead mechanic on 737 P8 and have worked on over 6,500 airplanes including 707,737,747 and 757.If you have any specific questions about 737 wing systems manufacture or operation feel free to ask them.
What is the cone shaped part under the wing called
Flap track fairing.It's a cover for the flap tracks.@@briannaluptowski5197
I am an old civil pilot , just retired and of course I enjoy your videos. Congratulations for your fine work and your time too. Best regards from Montevideo-Uruguay
Always wanted to be a pilot as a kid. I’m 74 years old. Love these vids , you’ve got great lecturing skills. Keep it up & good luc k to you
Even though English is obviously not his first language, he is still very clear in explaining a concept without stuttering. That is a job well done that is tough to do.
Nobody gives a rats ass what his first language is!! he speaks perfect English!!, there are over fifty countries where the official language is English and in those countries, they have their own accent, some of them even speak more than one language, not like those self-centered Americans, why can't people just appreciate and enjoy, when someone took the time to post something informative??
He has a VERY typical Swedish accent, which is fine. Great vocabulary and fluency. I just wish that he would stop pronouncing "thrust" as "trust".
Keep up the good work!
@@shanebond550 What I refer to, that you completely missed, is an educational concept. Many use English words in a very vague sense to communicate a concept. His English is so clean and to the point were he can explain a complex concept to an uneducated audience and still have them learn something from him. The ability to do that requires a very refined communication skillset. With some, listening to them is a painful ordeal as they meander. He is clearly educated in his ability to explain a concept to be immediately understood as opposed to contemplating his presentation at a later time. There are not that many who can speak so clearly and is almost entertaining to hear any presentation.
He actually pronounces English the way It Is ouhgt to be.
I've watched those flaps extend on many an airplane coming in to land, I am always amazed by the rigid strength they have as they get buffeted by the air. Now I know why they are so strong.
I've been a pilot with Spirit air for nearly a decade and found this video very useful, thanks!
I’m not a tekky person and I don’t understand the basics yet, but I love the mentality of Captain Mentour. Really focussed and well-argued. Gets to the reason why and doesn’t indulge in any kind of exaggeration and pointless window-dressing. I wonder how closely these video explanations replicate the classes the Captain’s lectures gives to his actual trainee pilots?
Oh I’ll bet pretty much the same he commands attention speaks well and when finished your all the better for it.
@@ronaldpellet854 Can you give me A Chance for Work I do Asset Manager, Accounts Manager, Transfer Handle, Audit Purpose I Do work with Safe And Secure
This narrator is obviously German or Germanic, and I marvel at his proficiency with our very difficult English language. I had always wondered about those pods too. He did a very good job of explaining them and all the other details here. Excellent!
I was thing the same thing.
Interesting to understand how this things work
He is actually Swedish! I actually thought he Was German at first as well
He is so informative and precise in his explanations! Love watching and learning!
So happy to hear that Carol!
Can you give me A Chance for Work I do Asset Manager, Accounts Manager, Transfer Handle, Audit Purpose I Do work with Safe And Secure
Yes PETER PUTS UR HEAD IN ORDER, WITH NO FLAP U SAY LONG RUNWAY WHAT IF IT WAS SHORT RUNWAY WATCHED SMALLER PLANE LAND WELL IN TREES 50 SOULS BUT PILOT TRIED AX ON HIS WINDOW HE DIED HAVE THEY GOT QUICK 737 FAST EJECTION NOW? PAINFUL HOW HE PASSED.(WOW Impressive ur plane used by military & .issues too.always give u thumbs up,ur huge in USA but in dark on " knots other European ways of numbers re hours etc can u add English 2,great Voice Hand gestures help understand what u say as u speak quickly..10+
5:30 I love your "Flap Skew sound!" I know its been said millions of times but you really do a great job making your videos! Your in depth explanations and examples really help in understanding what is going on! Thank you so much for all the time and hard work you put in these videos, it is very much appreciated! Take care and all the best for you and your family! 👍from the USA!!
I REALLY enjoyed your video. My daughter has started a phd program in atmospheric aerospace engineering at the U of Texas and I try to check out aerospace broadcasts like this so I understand what so intrigues her. You are a great teacher: clear; you speak in simple terms, and when you personalize your broadcast with your stories of problems you have encountered as a pilot, it makes the understanding so much easier. Thx.
Ithepilatyisgodisoneibentushousyforalmayteingisneverfail
😊😅😮😮😢😢😢
😊😮😊😊
The more I watch this stuff, the more I come to believe that in flying, your life is as much if not moreso in the hands of the mechanic than it is the pilot.
I have to think many pilots agree with you. Too many crashes have been due to faulty maintenance procedures. This more often than faulty design.
Actually there's no real pilots any longer. They already are semi-robots because the new technology does almost the all lot.
Real pilots are in the Airforce. Commercial pilots have poor skills.
My Dad has been an aircraft mechanic for 40 years and he says Jet Engines are easier to work on than cars...
Antonio most pilots received their training in the military, many are retired from the service after 20years.I suggest you check it out before you spout off.
@@robertnielsen2461
most it doesn't means all!
Your own words are conflicting.
When the fighter pilots turned as commercial pilots obviously they loose flying skills.
Like it or not, fighter pilots have better flying skills.
I'm only an airplane enthusiast and I really like your videos! To me they're spot on. I really like understanding the technique behind plane mechanisms. Thanks again for all your videos! Charles
Can you give me A Chance for Work I do Asset Manager, Accounts Manager, Transfer Handle, Audit Purpose I Do work with Safe And Secure
They are cleverly disguised nuclear weapons. Don’t ask the flight crew about them. Thank you.
Great Pilot. Very knowledgeable about the Aircraft System's descriptions & operations. We need more Pilot like him.
Your english is outstanding and your delivery and competence in explaining complex information is second to none . Well done , if you retire from flying , teaching is waiting for you in any area .Keep making these amazing clips .
Petter, as a non-flier but someone who has a fascination with flying (and has a 737-800 sim) I find these demos absolutely fascinating and this one answers a long-held query. I am really pleased to have found your UA-cam site and give my thanks to you for taking the time to help out others.
Can you give me A Chance for Work I do Asset Manager, Accounts Manager, Transfer Handle, Audit Purpose I Do work with Safe And Secure
As an electronics engineer myself, though retired, my first job back in 1972 was in aviation. I was doing avionics servicing in general aviation from the smallest planes up to cargo DC-4s and a couple executive jets. One of the reasons I got hired at that as my first job out of school is that I was an aviation groupie.
I knew those pods were the flap actuators but did not know before how they worked. I am sure many will find the tech stuff boring but for me, bring it on. You cannot get too technical with me at least.
There are a lot of homo stewards in that business and I bet you enjoyed yourself and miss it now!
DM Fraser
There are a lot of gay stewards romping after one another in that business and I bet you enjoyed yourself and miss it now!
@@redblade8160 I never worked on aircraft that had flight attendants. The Cargo DC-4 flew supplies to a uranium ore mine in the middle of nowhere and brought back tightly sealed barrels of uranium ore.
It was general aviation work. Where I was dispatched to planes around an industrial airport and never met the flight crews or plane owners.
So your assumption of getting involved with gay stewards is an entirely unjustified assumption.
@@dmfraser1444
You said you were a Groupie, well that is a person(s) who enjoys various forms of sex with medical personnel in the Air Medical field.
Modern airliner engineering is a marvel. The engineering behind the passenger experience is unbelievable. Thanks for taking the time to explain to us all of these aircraft features. Your channel is great man keep it up!
Right?! I can’t wait to see where it will go using diversity rather than meritocracy for aeronautics and especially for pilots 😮😂
And to think that decades of engineering and revision has made commercial air travel boringly safe!
This is neat. I remember these hydraulic motors and torque rods when I worked as a baggage handler for a major airline from 1988 to 1992. I was 25. They took us into the landing gear bay just to show us the manual fire suppression release, but I also remember these huge motors and a maze of hydraulic lines. Working out on the ramp with these aircraft was the best job I ever had. We flew the DC-9, MD-80, 727-200, 737-200 & 300, and our big daily was an Airbus A300. Thanks for the video, I never new they hid the motors in those fairings.
There are no hydraulic or electric motors within the canoe fairings. The drive motors are located in the wheel well and turning motion,( torque) is transferred out to the jack screws through a series of torque tubes and gear boxes . Even the gear boxes and torque tubes are located in the aft wing wells and not the canoe fairings.
I cant list any improvements to make since there really aren't any improvement to make, the channel is flawless for what it's trying to achieve, which is inform people on various topics in aviation. more cockpit videos would be interesting but as far as content goes, don't change
Same here!
Hundredth like!
Kun Feng well done, clear and no nonesence facts....!!!!
I can, literally every video you has a simple question and an absurdly long answer that could be summed up in a paragraph. Have that paragraph in the description.
atter0 the short a swear is what Google is for, the video should be the longer answer that goes more in depth
I wish my schoolteachers had been as interesting, knowledgeable and as skilled at imparting knowledge. Thank you.
We all do. Teachers are busy spreading socialism and racist propaganda... thats all they do. Thats why our kids cant think or read well or deal with science. No new welders or plumbers or carpenters ... kids are told how racist they are and that the environment is doomed. Yet the leftie leaders have massive houses and fly everywhere. And dont wear masks. Thats for the lowly idiots to do.
They are, but they have a class full of kids and some dweebs choose to be twats and the teacher spends the lesson dealing with the dickheads while you miss out on what they could impart. It’s easy on UA-cam, this guy can talk and his audience can’t affect anyone, so you get a one on one. Just think before leaping. Teachers cop it in the neck because the government keeps the idiots at school instead of pissing them off to boot camp or disciplining them.
Thank you for your informative videos, Captain, I absolutely love the B- 737. I’m a US Army Veteran, and a G.A. Pilot, and the nephew of a US Air Force B52 pilot, (and several other pieces of Air Force equipment). I’m very grateful for the knowledge of any instructional videos or face to face aviator knowledge shared with me. Flying has always been my passion since childhood. I’m absolutely a free spirit when I fly alone, and I absorb what I can to fly safe and to always be prepared for any situation. God Bless You, Sir, and thank you for your contribution to aviation. Hand Salute Rendered.
My uncle was a crewchief during ww11. Army Air Corps. I became an aircraft mechanic for USAFR 1979 to 1985. Im still learning from Mentour.
Mentour = best and most detailed explanation
Captain joe = easy to understand explanation
Mentour I really respect your knowledge of aviation
Yep! I love the depth on this channel. I knew it was the flaps mechanism, but then video of actual motor for the flaps in operation, stuff about FSEU and other flap related systems. Same with the "Why no main gear doors on the 737" video. Simple answer would suffice, but here's all this extra information on it. Top quality content.
I agree, not to diminish Captain Joe- he does a great job- especially with all of his analogies. Mentour Pilot acknowledges everything and always makes sure you know almost everything.
They both target different audiences and both do a good job making videos with their target in mind. Captain Joe targets the general public, while Mentour targets enthusiasts, pilots in training, current pilots, etc.
They are not married, despite what people dont say.
Captain Joe and Dutch Pilot Girl should be, though.
I was a little bit nervous about flying. I knew deep down inside that pilots very well knowledgeable however turbulences, take off and landing still put me on the edge of my seat. Now, after watching your videos about all these, reassure me about flying. Thank you for a job very well done.
Bart Maheu don’t go. You will surely die. Most airliners crash.
I was a Jet Mechanic in the US Navy during the Vietnam War and worked on Pratt&Whitney TF-30 P408 engines. After looking at those photos of the Fearing gear assembly I forgot how much safety wiring we had to do on Jet aircraft engines and any other moving parts on the aircraft. Every nut and bolt and fitting were safety wired to each other to prevent the nuts, bolts and fittings from coming loose in flight.
The real fun was safety wiring the engines combustion cans at the center of the engine. There were always a few combustion cans that were hard to get at and you had to use a mirror to see what you were doin. Thus you were observing a reverse image in the mirror while wiring the combustion can bolts. It was a challenge and took a little practice.
Found this channel today and subscribed right away. Been subscribed for about 2 years to 74 Gear and love Kelseys’s videos Now I have a new channel feeding. My dad was an instructor polot with Western and Delts doing recurrent training on 727’s and 737’s. I got to go down a couple of times to LAX and fly the full motion simulators. He started in the Air Force and flew B-25’s, -26, and then -29 then end his Air Force career in Vietnam in B ‘52s. My hero.
When I was a kid, we called them fake engines... :D Thanks for teaching us about this subject. I know nothing about aviation but this channel has been so interesting to follow!
Haha fake engines😄
5:30 I wasn't ready for that 😂😂😂
Shake It! Lol
Went to comments when he did that and found your comment immediately 😂😂😂😂😂
I dozed off and woke up to that cat meow :))))
@@andraslibal me too xd
I was sleeping and suddenly heard this
I always thought those were fuel pods. Thanks for the explanation
Same!
@@satunnainenkatselija4478 semmoset psykoosit sieltä
I also thought they were fuel pods. Great video.
That was a straight to-the-point explanation of the functions involved in the underwing "pods" on an aircraft. Thank You!
Keep making these videos. They are very interesting. I for sure am getting so much out of them. I find aviation fascinating. I have learned so, so much. Thank you.
Nobody normally talks about these subjects so we go along flying or not flying on planes not knowing anything about flight or how it operates. In the blind.
So its the "box"(covering) for the gears , mechanical components.
Loved your explanation of everything.Very thorough.
jalsr.speak237 Boat Or Canoe fairings to streamline the flap track and flap transmissions.
Always enjoy, listening to you no matter what parts of airplanes or crashes, you’re talking about! I particularly enjoy the “sound effects” in this episode!
These pods under the wing are the trailing edge anti-shock bodies used on the Handley Page Victor bomber, commonly referred to as "Küchemann carrots" invented by Dietrich Küchemann, who worked for the Royal Aircraft Establishment. They greatly reduce drag. Kuchemann is also credited with the Coke-Bottle 'area rule'.
You're 100% right. This isn't really covered in the video, but the reason the pods are where they are, and they are the shape they are, is due to the Transonic Area rule (as the Coke-Bottle rule is properly called).
Most 3rd year Engineering students learn how to derive this rule when studying supersonic flow. Basically, supersonic flow can "choke" when "turned" too much by a rapid change in body geometry. From this concept, the ideal "cigar" body can be derived.
This is more obvious in some planes like the DH Comet, where some of these concepts were implemented for the first time.
We love the technical things Mentour two thumbs up,,,, not everyone wants to know these things but some of us find it fascinating!!
In some regions, folks refer to them as 'canoe fairings'... great videos, Thanks!
I am a pilot and I didn’t know what those pods were. Great explanation!
My old man was a recirculating ball screw designer. I grew up with this stuff... He and a friend designed the screws for the C5 Galaxy kneeling system. They are HUGE!!!
Captain, every one of your videos on aircraft systems has been highly informative. I am no longer a young man, and an ATP is not in the cards for me. Just the same, it is heartening to see you lighting the way for prospective pilots. Please keep up the good work!
I will! Thank you!
Can you give me A Chance for Work I do Asset Manager, Accounts Manager, Transfer Handle, Audit Purpose I Do work with Safe And Secure
I am not an engineer but I have curiosity to learn something about planes. So I am learning. Herein , the video is simple, pursuassive, any passionate learner can learn easily. It's good and helpful video for the person like us. - Damodar Boruah, Author Born To Do Big, India
I know this video is years old, but just wanted to say that back in the day, I got my Enlisted Air Warfare Specialist (EAWS) on a P-3 Orion. I never got to see the P-8's. And yes, you could also arm the P-3s. Thank you,
ET1(AW) Hargraves
They’re flap track fairings, called Canoe Fairings. I worked on B747 Classic, B747-400, B767-200/300 and B737-300/400/800 for Qantas for 39 years.
In 1971 the track roller bearings on the 737 wing were causing problems. They would lock up, shear the cotter pin holding the retaining nut, unscrew the nut and leave the bearing lying in the nacelle you see on the cover picture. There was a bulletin on the 737 to re lubricate the track roller bearings every 50 hours. I was a Sales Engineer working for McGill Bearings who manufactured aircraft bearings. Boeing was my customer. Larry Blakley, structural engineer assigned to the 737 wing asked me to become involved in the problem. The application and problems were similar to fish cleaning machines in Alaska (manufactured in Seattle by one of my customers) which had been solved by my efforts With support from McGill engineering dept, I proposed a solution. Last I heard, the test aircraft at United had flown 7 years without lubrication or failure. I believe my effort contributed to the success or the 737 aircraft. This scenario would not happen today because the mechanism has been replaced by computer software.
Did I get rich, no, I was doing my job. McGill Bearing made a bunch of money!
Iguana
You want a cookie?
@@simmingszycho1980 😋🍪
Iguana? Why?
I really like having a pilot explain all the different functions on an airplane. I like knowing these things; it makes flying so much more interesting.
He didn't say he wanted to make a ton, he said he was doing his job.
I remember the first time that I boarded a plane back in 2005, i was 5 and i thought they were there to make the airplane float in water 😂😂. Don't ask me why. Great video as always Petter
Great! I’m happy you like it! Please check out the Brilliant link in the description as well.
AcesFans ONLY why not?
Lol when I was about 8 I wondered where the ramp at the end of the runway was to take off!
JosmerSueroMusicMix. J
Same!!!!
the flap track farings in slang are often called "canoes" due to their appearance. the forces involved by such actuators is quite significant and the reason why such are "pinned" during maintenance operations to avoid potential fatal accidental actuation during maintenance operations (such pins being treated as surgical instruments during medial operations and carefully accounted for so as to prevent being left behind before aircraft is put back into service)
My favourite part of this video is at 5:30
I could listen to this for hours!
P.S. Keep up the good work! I love your channel, you answer questions I’ve wondered about for YEARS - JD, Montréal
Can you give me A Chance for Work I do Asset Manager, Accounts Manager, Transfer Handle, Audit Purpose I Do work with Safe And Secure
Excellent. Your videos really help reduce "flying phobia". Keep up the good work!
Lol not so much when you realize how many moving parts are on a jet airliner and statistically the more moving parts you have the higher risk of failure you have.
But if it makes you feel better you're more like to die by choking, drowning, or in an automobile than you are in an airplane. Statistically it is to date the safest way to travel. Lol
TheWhite EazyE Not with the amount of safety checks aircraft religiously get
@@tonyjlorns1727 ? I'm not sure what exactly you're saying here? I worked on powerplants of jet aircraft for a long time I know how the religious safety checks as you call then go. Lol Even with that no matter how maticulis safety checks are that doesn't change the fact that the more moving parts something has the higher chance of failure it will have.
@- haha gosh dam I guess I have to prove I've worked on jet power plants to some nobody grammar Nazi on UA-cam. FYI I was an aviation machinist mate that worked on legacy, super hornet, and growler fuel cell and powerplants at both I level and O level. I've literally rebuilt jet engines from the ground up and tested them on test stands and in aircraft.. I've done everything from full breakdowns and rebuilds to routine maintenance on every single type of F18 ever made from A to G. I'm very well acquainted to how maintenance is performed in the aviation industry.
I at first thought those were missiles. I wasn’t a super bright kid...
Well, who knows when you're gonna need one? The plane could be attacked by Sky Pirates!
same here bro hahah
I mean, it's usually safer to assume something unknown is explosive than not
I thought they are boyancy bodies for landings in water....
@@timboffm595 sound logic.. assuming you can be lucky enough to keep the wings attached upon contact with the water 😂
So amazed and proud of how far this channel has come 👏👏🥂🥂 I'm going back to these older videos to watch what it is I missed all these years ago 🙏😘 Well done Petter!!!
Video gets a like:
- Title posed a question that piqued my interest but I didn't want to spend to long on it
- And you gave the answer to the level of detail which satisfied that interest in the first couple of minutes
Thank you for doing it like that and not trying to bait everyone to watch the entire video when they may not have the time
To complete what you said: these trailing edge pods also reduce the wave drag which appears at high speeds. This is why they are so bulky (they could be slimmer if their role was only to cover the flaps mechanism). When this aerodynamic effect was discovered, a few aircraft like the Convair 990 were designed with dedicated "anti-shock bodies" on the trailing edges. Aircraft manufacturers later found it much more efficient to combine them with the flaps fairings.
Shocks begin to form on the upper surface before the bottom. Obviously because the upper surface is where the air accelerates. The lower surface on modern aircraft such as A320 family and forward use the super critical airfoil that incorporates a trailing edge cusp to also mitigate the formation of shock waves. I would be cool if the fairings stayed on the upper surface like the 990. My intuition says that took up wing area on the lifting surface.
Antoine Bonnet
Except,..
That doesn't come in to play here.
Good Explanation of why it would at mach-+.
But these, as in most Boeing "Commercial" Aircraft. Is for ease of removal and maintenance.
And hence their dimensions.
Tolerances at less than Mach, are less critical.
Just a simple explanation from a 49yr Boeing engineer.
@@My-Pal-Hal I thought anti-shock bodies were used to reduce wave drag at transonic flight no? Well within the envelope of the 737.
@@tonybalogna123
But these are just aerodynamic fairings to cover the flap tracks.
And they are only held in place with a single row of screws around the top of the fairing. Which in itself shows they don't normally experience much turbulence,.. normally. And why they were a bit larger than they technically had to be. Again, for ease of maintenance too.
They are there to protect the flap tracks system from dirt and debris. And keep crap out of the gobs of butter lube within.
And those are Technically Called "Torque TUBES",.. not torque rods. You have to be Good at Safety Wiring those, especially on the 747. A torque tube nightmare. Trust me 😬
Those fairings on the 747 were big enough for a 12 person Canoe 😂
... if you screwed them together of course 😊
The 47 was my fav.
And in the old days. If you know what final assembly is.
Final Assembly is were you bring all the aircraft sections together. Body, Wings, Gear, Control Surfaces, Electrical Systems etc. And assembly the complete airframe. Minus most of the interior, engines, paint,.. that sort of thing.
Anyway.
We were assembling a 747 every 3 days, with no travelers (100%) for almost 3yrs. Till the cycle changed again. We were building them faster than they knew what to do with them 😂
Good Times. We had fun 🤗
Which reminds me of a term few people have ever heard. "Crease Backup". You get a ⭐ if you can find that one.
...other than this comment 😏✌️
@@My-Pal-Hal Love the explanation. Not gonna lie, the "anti-shock" explanation does sound a little sexier and exciting than just an ol' safety cover for the flap mechanism... but I've asked a few engineers now, and they all pretty much say the same thing you're saying.
You are doing a really good job explaining the various system of the aircraft. It's really useful for me for passing my Easa modules for Aircraft maintenance licence
Great! I’m so happy you like it!
It’s impressive to me how effective you are at explaining complex topics in simple terms - especially when I consider that you are not a native English speaker. More information on the various systems of the B-737 and the military version of the aircraft would be most welcome. Thank you for the significant effort and care that is so evident in your videos.
The C 141 is the military version of a cargo 737. I had to do them in 1980s. Things are changing now 2023.
Nice teaching about a detail of an aircraft. Most people who look at an aircraft when boarding or during flight have no idea about those details. Just call those fairings "Flap Track Fairings" and not flap fairings. The flaps as such do not need fairings. But the tracks where the flaps move along when extended and retracted plus the the drive mechanism is that part of aircraft that needs an aerodynamic fairing.
Those fairings have also a second function: They reduce the overall drag of the aircraft when flying faster than Mach 0.75. It has to do with the "area rule" of low-drag transsonic aircraft. When you take cross-sections 90° to the center-line of an aircraft you can see that the areas of those cross-sections become much larger at the locations where there is the wing in addition tho the fuselage. The aerodynamic laws do create additional drag when this area suddenly becomes much smaller. This is the case at the trailling edge of the wing. By adding addidtonal streamlined bodies that "bridge" this down-step of cross-section at the aft end of the wings will reduce drag at high Mach numbers in subsonic flight. See also Wikipedia "Kuechemann Carrot" / "Anti-shock Body"
WOW! So much detail, I'm just a regular guy who flies on their annual leave but this is SO interesting for the curious holiday maker. Thanks for sharing.
Can you give me A Chance for Work I do Asset Manager, Accounts Manager, Transfer Handle, Audit Purpose I Do work with Safe And Secure
When I was younger I used to think it was fuel tanks 😂😂😂
Yea me too that's how kids see it
no way, they're clearly rear facing missiles!
Well aeroplanes run on air, so definitely not that.
@@nataliee5501 what?!
@@polish001airigami5
I wish for you to find out how much fuel for a journey.
See how much it is and how many containers you need.
Where is it? It's not on the plane. 9 buses of fuel, its impossible.
No fumes of fuel burnt.
Look at the zeppelin, that travelled around the world, ON AIR.
no gravity. Just electro magnetism.
I just wanted to say, Petter, that the Mentour Pilot videos are so much better than their competitors. I used to fly frequently as part of my work, flying transatlantic and within Europe, so I learned a reasonable amount about aviation matters. Your videos, however, show me that I knew very little in reality and understood even less. Please keep up the good work!
Though retired I still love watching your very educative videos ...
One can never know too much about the systems used on your aircraft or indeed, any "tool" you use. Please do keep making videos on flight systems, and when applicable, compare them to alternative systems used by different manufacturers.
I appreciate your excellent videos!
Absolutely amazing content Petter! This channel has improved over the last couple of years, which I love!
Flying an aircraft is still a dream for me but being with you through your videos simply indulges me so deep that i sometimes feels like living my dream. thanking you and waiting to see you in next video.
The sound effects at 5:31 made it worth a watch 😄
Keep it coming! I am a 767 flight mechanic, and I try to always keep learning. Thank you.
Suuuure you are....
Thank you for the detailed info I’ve actually been wondering myself
Mentour pilot,(Petter Hornfeldt) love your videos in your unique Swedish accent. Used to be a student pilot in the late seventies.. Now i am into own Pharma business. But the flying bug has never left me.
Your videos are so detailed and informative.. and explain all possible doubts about the technicalities in commercial aviation.
Thank you once again. Keep doing your Great work.
I love watching your videos. I have been in aviation maintenence for 40 years and love seeing a pilot know so much about all the systems in an aircraft. Keep up the good job.
Am not a pilot but I enjoy your lecture. Ur great
I was on a flight where one of these “pods” was loose. When the flaps were down the pod shaked wildly. When the flaps were up the pod was hanging down but not shaking. We landed ok but it scared a lot of the passengers.
yeah it can be scary but even if one of those breaks loose there would be nothing to worry about :D
Yet again the author is full of shit. Pods wouldn't create "enormous amount of drag". The most important parameter when calculating drag is the area measured from the direction of air. When packing in something you increase the area, thus the drag.
@@friedchicken1
"Nothing to worry about", what about hitting someone's head on the ground or smashing through a roof?
@@redblade8160 oh yeah
@@UA-cam_Stole_My_Handle_Too You misheard him, rewatch it and turn subtitles on starting at 1:30. He says "the pods are there to *streamline* the air as it's flowing through" and "IF the pods *were NOT* there, it would cause an enormous amount of drag." Literally says the pods decrease the drag. The trailing flaps cause the drag, not the pods. The pods support the flaps and decrease drag, as well as help make sure the flaps are extended equally to create even lift/drag on both wings.
Speaking of landings... (sorry, but this might be a bit off-topic, but I was hoping you might be able to steer me in the right direction nonetheless...)
I was a passenger on a plane in May of 1998 that had a near-miss with another airliner, at LaGuardia. I am talking about a big airliner, landing on runway 22, coming within 20 feet or so of another that was departing on runway 31. We went over the departing plane, as our pilot abruptly pulled up and gunned the engines, calmly announcing that we were going to go around to take a little sight-seeing tour of downtown Manhattan, which we did do (aside: our view of the WTC led me to imagine what a terrorist might be able to do to the WTC if he had a plane this close -- as close as we were -- to it).
I realize this was some time ago, but it was such a significant event that I cannot get it off my mind. Since I did find a very similar (but not exactly the same) occurrence that also happened at LaGuardia, within the same timeframe (Friday, April 3rd), I thought that this might have been it, but it isn't happen at the right time (it was at least four weeks, and perhaps as much as six weeks earlier).
I know the date of the near-miss that FAA has on its website (Friday, April 3rd, 1998) and I know the date of the event that I was attending, the '98 SAME Conference (Society of American Military Engineers) in midtown Manhattan (19th-20th May). From memory, I believe that I took the flight from St. Louis Lambert to LaGuardia
I have found another event that was very similar in the FAA logs, but it just was different in a few specifics, and possibly off on the date by several weeks... I have reason to doubt this was the one, but still think it probably was just yet another near-miss at LaGuardia.
Apparently, this incident was never reported or recorded. I didn't report it. That's what's interesting to me, there were so many people involved, pilots, tower controllers, passengers, and the incident so potentially horrific, it surprises me that there is no documentation of it. Any way to remedy this, at this late date? Or, specifically, to find out if there might not be some record of it, after all, in FAA ledgers? Thanks.
Yes, the technical aspects of aircrafts is gaining information that I refer to as a puzzle to be filled in with each piece of the puzzle. In this video in addition to seeing what these pods do, and the approach used to solve problems that can happen. I also realized why some fans addressed the question if the aircraft could be armed? It does have that appearance if one knows they are there. Continue doing what you do you do it very well as your fans have so often written. You do space the technical with incidents that happen that is also a source of knowledge that blends our learning and interest.
Wow, I’ve always wanted to know this myself, as I fly frequently. Passenger jets are a wonder of technology, but I’ve always been fascinated by just the design, thought, and engineering that goes to just the wings structure alone.
Thanks SO much for the valuable info - ALWAYS nice to hear it from the genuine pros! REALLY enjoyed your style of presentation.
Can you give me A Chance for Work I do Asset Manager, Accounts Manager, Transfer Handle, Audit Purpose I Do work with Safe And Secure
I was a passanger once when flaps malfunctioned and we landed with a bit more speed. You have great videos on tech that has always interested me but the stuff I never botherd to look for and understand better. :) Getting just enough deeper into the rabbit hole from my current base knowledge. Thanks yt for offering these after searching basic stuff on airplane and helicopter flying :)
Im not a pilot or a student on aviation, but i find your explanation good, very straight to the point
Great timing my friends and I were just wondering about these yesterday.
Kinda' thing I do too!
woww...i was about to search and youtube recommended it
Great video! Please continue explaining systems like this.
I fly a lot. I'm amazed at how LITTLE the average human knows about what even makes a plane fly. Most people don't know how ANYTHING works. I think people should at least take a small interest in how basic things work in life. Nice job explaining this.
Thank Captain! I appreciate the technical details you describe. I believe that it only makes sense to know as much as you can about what happens behind the scene when you push and pull any switches on any machine you are operating.
So basically helps the air craft with drag and lift on landing. The pods are quite big as they have to be strong and sturdy to hold mechanisms.
That’s the 10 second summary
I like the variety of topics. I look forward to every new video. Thanks.
8:50 It's a big deal if the runway is very short, f.ex like in Funchal Madeira. It is extended but back in 1979, it was kind of dangerous. I remember we stood waiting for the plane while the pilots did some rounds back and forth before, we were allowed on board. The pilots tried to find the right speed without passengers, so they better knew how fast they had to go with passengers. It was a Boeing 727.
Many, many years ago, I believe I was in a Boeing 727...or if not, some other airliner with only rear mounted engines...and on landing approach, looking out my port side window, just at the trailing edge of the wing, I watched a similar fairing flapping around rather loosely in the turbulent airflow. It had broken free on its lower extreme. The only remaining anchor point was one or more rivets on the top of the wing. flap, Flap, FLAP it went until...it disappeared, fortunately not being ingested by one of those rear mounted engines. I then learned that the fairing covered part of the threaded shaft drive that operated the flaps if I recall correctly. I stayed onboard until all passengers were gone...so I could let the flight crew know their plane was shedding parts! 😳😳🤣
When gazing out of the passenger window, I always thought these pods/fairings served the same purpose as the Whitcomb body, also known as the Kuchemann carrot. Shows how much I know. Great video, MP - thanks for educating me. ;)
Paul Kirkland ህውንግፕየውንግ
An aerospace engineer once told me that they are factored in in a form of area rule, although most airliners are well subsonic....but they simplify the flap actuator design and make maintenance a lot easier while minimizing the need for a lot of access panels on the wing surfaces.
Kucheman bump or carrot.
0:48 is where it starts
Thank you I was about to fall asleep
🙏 thanxx
Phillip Moreno damn people can’t even listen to a man talking for 50 seconds without falling asleep smh
i love how this guy answers all the questions about planes we had when we were little
You are a good pilot. One of my favorite airplanes is the Junkers Ju52, I like its flying characteristics. It has just one long wing control surface that functions as a flap or aileron.
About the missile carrying capability, almost all big planes have strong points under the surface skin on the wings and fuselage. Devices can be attached on these strong points such as radar pod, scientific instruments and sensors, sea rescue pod, rockets for boost takeoff, missiles and bombs and even engine transport. The last one, an airliner can carry an engine as frieght (usually when a repaired or faulty engine that needs to go back to their maintanance centre)with passengers on board. The engine is slung under one of the wings and while flying, the pilot trims the rudder for the extra drag on that side.
US Navy P8 Poseiden is the armed version of the 737, wing mounted harpoon anti ship missiles and bay mounted Sono buoys and/or torpedoes are it's arms compliment. It replaced the P3 Orion.
All of what you said about the flap mechanism fairings is correct, but you left out another major function which has a significant effect on their contour: their use as anti-shock bodies. These fairings are frequently larger & a different shape than what's necessary for streamlining or covering the mechanism because they're used for transonic area ruling. Thus, they are performing the function of a "Whitcomb body" or "Küchemann carrot" at the same time as they're covering the mechanism. Most often, folks associate area ruling soley with supersonic aircraft and with "Coke bottle" or "wasp waist" shapes (i.e. F-5/T-38, F-106, etc.), but transonic drag reduction is also important and other areas can be used to do area ruling.
Very cool, I actually wasn’t aware of that!
Glad to have added that to your knowledge base! :)
On the Convair CV990 these bulges were sometimes called Marilyns. Make a guess why? :)
Redlock hello
Actually, area ruling is MOST important in the transsonic regime. Once you are significantly beyond mach 1 it has less of an effect.
Thanks brilliant is really good,
Every curious learner SHOULD have brilliant sessions
You could definitely side-port mount guns in a 737 and the aft cargo deck is effectively over open space in the lower fuselage so it'd be possible to install some doors there for a sealed-out pod for a few small cruise missiles but the wing structure and height of the plane off the ground would make takeoff and landing almost impossible if anything more was protruding beneath it. 767 is the far better plane for thinking about arming a twin engine boeing. Or you could just tell an airbus "that's the runway" and jump out.