What are those SPINNING things in the cockpit?!

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If you have been watching ANY cockpit video from the Boeing 737 you would have noticed those constantly spinning little wheels on the side of the pilot. What are they and why are they spinning so much? In todays episode I will explain the Stabilizer trim system on the Boeing 737 and, as always, I would love to hear if you have any additional questions or suggestions in the comments below.
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Below you will find the links to videos and sources used in this episode. Enjoy checking them out! Jackscrew operation - Anders Cornelius Olesen
• Boeing 737NG horizonta...

Пікірлер: 1 200

  • @mitchelrivers369
    @mitchelrivers3692 жыл бұрын

    Literally only one person in the world could talk about trim stabilizers for 21min and keep me engaged. Hats off to you, sir!

  • @martinneumann7783

    @martinneumann7783

    2 жыл бұрын

    I do agree. 100%. 21 min.

  • @freibert

    @freibert

    2 жыл бұрын

    Agreed, am not even close to being a pilot :) //

  • @jamisbillson4872

    @jamisbillson4872

    2 жыл бұрын

    As a fan of Luton Town, a football club with an airport close by (London/Luton) I think I should add…we Luton fans are called the Hatters. Cos we made hats in the old days. Who Wants to be a Millinar was first played on television in 1786. Chris Tarrants great great great grandfather hosted it. The prizes also included TB, VD, other letters and malaria. Answer 10 questions and avoid the death penalty and the diseases from those days a d you could have won a hat.

  • @der.Schtefan

    @der.Schtefan

    2 жыл бұрын

    Indeed. I have binge watched his whole channel back to 3 years within 3 weeks 😀

  • @MultiClittle

    @MultiClittle

    Жыл бұрын

    @@jamisbillson4872 lol

  • @johno9507
    @johno95073 жыл бұрын

    While working as a flying engineer (A&P) sitting in the jump seat on a B737 I was amazed at just how much the flight attendant walking up n down the isle made the elevator trim wheel spin back n forth, even on larger aircraft like the B767 the drinks cart going up n down the isle makes a big difference to the trim.

  • @iwatchwithnoads7480

    @iwatchwithnoads7480

    2 жыл бұрын

    What about someone jumping up and down?

  • @johno9507

    @johno9507

    2 жыл бұрын

    @@iwatchwithnoads7480 It depends on how heavy the person is and where abouts in the aircraft they are. If they are near the aircraft centre of gravity over the wing, then no. But if they are right down the back or right up the front then it probably would effect it very slightly, but you wouldn't be able to feel it. The aircraft autopilot is very sensitive and can make tiny adjustments to keep the aircraft level.

  • @ElectricityTaster

    @ElectricityTaster

    2 жыл бұрын

    you should see the difference when I flush.

  • @xTheUnderscorex

    @xTheUnderscorex

    2 жыл бұрын

    @@iwatchwithnoads7480 Someone jumping up and down has the same weight on average as someone doing nothing. Unless the autopilot is reacting within the

  • @klam77

    @klam77

    2 жыл бұрын

    @@ElectricityTaster nasty!

  • @Coachman38
    @Coachman382 жыл бұрын

    This answers my question about those 2 wheels, I was always curious about there operation.

  • @elyana_

    @elyana_

    Жыл бұрын

    Their

  • @MultiClittle

    @MultiClittle

    Жыл бұрын

    @@elyana_ not helpful

  • @bretwalton6535
    @bretwalton65353 жыл бұрын

    When I first saw this video was 21 minutes long. I thought you were going to talk about a bunch of nonsense for 15 minutes. Before giving a simple explanation of what the spinning things were for. Instead everyone and I got an in depth lesson on what they are, what they do and how they work. From the start of the video until the end. Very informative and explained very well. I watch too much Simon W. You and Kelsey (74Gear) are the best.

  • @1Cosmo12

    @1Cosmo12

    2 жыл бұрын

    In

  • @joffreyverbeeck1640

    @joffreyverbeeck1640

    2 жыл бұрын

    If he keeps making videos like this about aircraft systems, I think even as a line training captain he'll someday be out of a job... "So, where did you learn your way around a cockpit?" "Mentour Pilot..." "Ah, yes. Great content on his channel. You're hired. You're starting next monday. Would you like to be first officer or captain?" On a serious note though, this knowledge could possibly save lives in a case both pilots get incapacitated. Someone who's got some basic knowledge about the cockpit, where everything is, and how the plane should behave, could in such case possibly get her on the ground with less damage and injuries than if you just let her do her own thing.

  • @mikoto7693

    @mikoto7693

    2 жыл бұрын

    @@joffreyverbeeck1640 It’s a nice idea but if both pilots get incapacitated then everyone on board is doomed. Even if there were someone on board who either is a pilot or knows enough to call ATC to get them to get someone to teach them how to program the autopilot to land, the sad truth is that it wouldn’t matter. Because thanks to the events of 9/11 it’s incredibly difficult to even get into the cockpit because the doors have been reinforced and are always locked. I’m honestly unaware of the exact security precautions involved in cockpit door but I don’t think any normal person could gain access even in such an emergency like that.

  • @jadenzeilinger8244

    @jadenzeilinger8244

    2 жыл бұрын

    Agreed! Him and Kelsey are on top

  • @uffa00001

    @uffa00001

    2 жыл бұрын

    @@mikoto7693 In one of the videos on KZread it is mentioned that It's an open secret that there often is one person in the flight personnel who has the number combination to enter the cockpit. This was introduced after the tragedy of the Germanwings flight, if memory serves. A group of terrorists would have some problems in torturing one by one the flight crew members in order to extract from them the combination to gain access to the cockpit.

  • @cpanw
    @cpanw3 жыл бұрын

    finally I know what those wheel things do!

  • @MentourPilot

    @MentourPilot

    3 жыл бұрын

    Excellent! That was what I was after 😂

  • @cesarnc2008

    @cesarnc2008

    3 жыл бұрын

    Same here 😂😂😂

  • @TheSackese

    @TheSackese

    3 жыл бұрын

    @@MentourPilot You mean they aren't the manual starter for the engine? :p

  • @jameskoralewski1006

    @jameskoralewski1006

    3 жыл бұрын

    @@TheSackese No, they are the kick starter for the engines!

  • @paultarwireyi2405

    @paultarwireyi2405

    3 жыл бұрын

    Hi Mentour thank you for your videos im watching this one probably 3rd time and it got me thinking from investigations of lion air and ethiopian air 737 max did the pilots try or have enough time to try and use the manual elevator trim to avoid the fatal pitch down?

  • @EUK007
    @EUK0073 жыл бұрын

    I'm not a pilot student nor involve in the aviation industry but im learning a lot everytime i watched your video. Thank you very much Captain! 👍

  • @EUK007

    @EUK007

    3 жыл бұрын

    @@seanthompson258 oh another dumb Flat Earthers here... 😁😂🤣

  • @brysonfitzgerald5238

    @brysonfitzgerald5238

    2 жыл бұрын

    @@seanthompson258 oh no, Sean.

  • @adamg4962

    @adamg4962

    2 жыл бұрын

    Same here, a few more weeks ill be ready for the course!

  • @tvenergyproductions1

    @tvenergyproductions1

    2 жыл бұрын

    @@seanthompson258 How would you explain the degree adjustments pilots have to make for the curvature of the earth and the time of day, year etc?

  • @MultiClittle

    @MultiClittle

    Жыл бұрын

    @@tvenergyproductions1 the original reply is gone, was he a flat earther or something?

  • @andrewdavidson7656
    @andrewdavidson76563 жыл бұрын

    Alaskan airline flight 261 would be a perfect example of catastrophic failure in the horizontal stabilizer. For those who aren’t familiar with that incident, it was a MD-83 that went down off the California coast in 2000. It was determined that the airline delayed maintenance on the jackscrew in an attempt to save money, but they delayed too long. The jackscrew ran out of grease resulting in the threads to stripping out. This eventually caused the plane to go into an unrecoverable dive and loss of aircraft with all hands.

  • @chunkyazian

    @chunkyazian

    3 жыл бұрын

    There were 2 factors that contributed to this. When the screw ran out of grease and it was stuck, the pilots used 2 motors instead of one in an attempt to turn it. That was too much for the damaged thread to handle. But the scariest part of this was the M-D engineering. After the thread stripped and the stabilzer hit its down limit, the pilots managed to level off at around 19,000. That was until the down limit nut failed and the stablizer went past the down limit. Had M-D designed it to be fail safe, had there been a bigger nut at the down limit, the pilots might have made it as LAX was in sight

  • @andrewdavidson7656

    @andrewdavidson7656

    3 жыл бұрын

    @@chunkyazian There's no denying that there should have been a fail safe and that the pilots using two motors in an attempt to force the jackscrew ultimately caused it to fail completely. The root cause was the airlines negligence in properly maintaining the jackscrew which resulted it premature wear allowing the failure to occur.

  • @RyanBlackhawke

    @RyanBlackhawke

    3 жыл бұрын

    I worked with one of the victims.

  • @RyanBlackhawke

    @RyanBlackhawke

    3 жыл бұрын

    @Jim Mork I can't even imagine the terror that everyone on that plane went thru when it inverted.

  • @MrRexquando

    @MrRexquando

    3 жыл бұрын

    Like @Felix C it was multiple factors. If the screw jack on the 737 fails the Hstab can't travel past the limits like the DC9/MD8x could. Additionally inspection is easy as the jack is in the tailcone not inside the tail. The design is very different as the arm will get trapped between bottom gimbal the safety nut which unlike the DC9 is huge. Finally the pilots sadly did the unthinkable after 2nd or 3rd event. They tried to use the trim again (like normal). If they would have left it and limped back to LA they would have survived.

  • @joelmacdonald6994
    @joelmacdonald69943 жыл бұрын

    It always blows my mind how many redundancies are built into aircraft. I get why it is, and I am so thankful it is, but you guys work work with so many safeties built in. It’s really cool. No human is perfect and I know at the end of the day, if you keep you alive, you keep us alive. Much respect.

  • @Maik_Budweg
    @Maik_Budweg3 жыл бұрын

    3 years ago and it was my 2nd lesson in a B 737 full flight simulator from Lufthansa Flight Training in Berlin. At some point my flight instructor asked why I was trimming so often. I told him because I like the sound of it so much. Have a nice Christmas Time too. 😃🎄🎁

  • @michaelrmurphy2734
    @michaelrmurphy27343 жыл бұрын

    FINALLY!!!!! I see those spinning wheel things and have always wondered what they were. Now I know!

  • @michaelrmurphy2734

    @michaelrmurphy2734

    3 жыл бұрын

    Hey Mr Mentour. I live in Nova Scotia where Swissair 111 crashed into Saint Margarets bay. My mom's family have a cottage there. In fact I went to the event for the victims at the Halifax Citadel. Have you done a video about that?

  • @philscott7949
    @philscott79493 жыл бұрын

    Ahh, the good ol' fire gloves. There was a giant hangar with a row of lights out because one light was tripping the circuit breaker. The apprentice complained he had no way of knowing which light was faulty without inspecting each one. The head electrician puts on a fire glove and holds down the circuit breaker until one light explodes - "that's the one!". 🤣

  • @SYNtemp

    @SYNtemp

    2 жыл бұрын

    Oh yes, for doing that, you HAVE to know your wiring very very good, otherwise it is perfectly possible that some other part of the wiring goes off before the faulty light... in which case you have not found the faulty light but the weakest wire... There is quite some margin between the cb's tripping and wire failing, but it is not impossible. And that's the reason we should never test it, even don't suggest doing something like that, bcse people who have NOT enough knowledge (about the circuit, and/or generally) get the impression they could or even should try that too (and get fcked while doing so). Besides, i know a whole line of circuit breakers where holding the lever up would not stop it from tripping...

  • @philscott7949

    @philscott7949

    2 жыл бұрын

    @@SYNtemp I'm reasonably sure in this situation the wiring was extra heavy duty, metal cased etc. The location was a steel processing factory.

  • @JoshuaTootell

    @JoshuaTootell

    2 жыл бұрын

    I work in an aerospace factory and I would never think of doing something that insane.

  • @232K7

    @232K7

    2 жыл бұрын

    @@JoshuaTootell my first thought is how would you explain that to your boss if something went wrong lol

  • @Kenionatus

    @Kenionatus

    2 жыл бұрын

    @@SYNtemp Very good point. It takes a very knowledgable expert to do dumb shit safely.

  • @simev500
    @simev5002 жыл бұрын

    The term "trims" in all airflow-able crafts are so similar in functionality. The trimming of the sails comes to mind. Nice presentation.

  • @gauravkapoor3600
    @gauravkapoor36003 жыл бұрын

    Excellent articulation. Probably, the best in aviation. Love the quality of your videos.

  • @dominicMcAfee
    @dominicMcAfee3 жыл бұрын

    This one is in my top 3. I learned a lot here Petter. Thanks for the content!

  • @emmcee476
    @emmcee476 Жыл бұрын

    Since starting to watch this channel, I have realized just how heavy and extensive a pilot's workload is. You guys are responsible for even more things I had no idea about. Crazy 👍

  • @scottmarinello3797
    @scottmarinello37972 жыл бұрын

    I've heard you mention "trim" in lots of other videos, but I never really understood what it was. Thanks for explaining it so well.

  • @roblachman8919
    @roblachman89193 жыл бұрын

    Thanks. Always love your reports. My 22yr old granddaughter has just passed her PPL at flight school at Bankstown Airport in Sydney. She is now doing CPL so I have added interest in all things aviation. Many thanks 🇦🇺👍

  • @Docstantinople
    @Docstantinople3 жыл бұрын

    It’s like putting an empty container on a scale and zeroing the scale so it only weighs what you put in the container.

  • @MultiClittle

    @MultiClittle

    Жыл бұрын

    trim = trim, definitely the same idea, just applied in a different way

  • @davidkillens8143
    @davidkillens81433 жыл бұрын

    I was in a DeHavilland Buffalo that was on a return flight From Anchorage, destination Comox. It had a manual unassisted elevator trim wheel in this aircraft with no autopilot. There were a dozen crew in the back and after a few hours of boredom, everyone quietly moved as far aft as possible, and we watched the pilot compensating automatically as his hand hung down casually, just moving the wheel. We all moved forward, and we giggled as we watched him moving the wheel. After three or four times, his head came up as he realized what was going on. He looked back at us, and pushed the stick hard forward, we all got thrown to the floor, and as he pulled hard back, we all flew up into the ceiling, then all falling down. Everyone had a giggle, but we all learned not to mess with the pilot.

  • @sharoncassell9358

    @sharoncassell9358

    2 жыл бұрын

    I had a flight instructor on a Cessna 150 who didn't show for some reason. He was replaced with another who happened to also be a fighter pilot. He decided to demonstrate rolls and dives. A good thing I don't eat prior to flying. I stopped him reminding him we were a bit low on oil. I could imsgine doing a roll and starving the engine of fuel and it cutting off midair. It happened once before, no acrobatics.I guess he was showing off but the next time i rode with a hotdog was in a car going to another airport in St. Louis.teaming rain, night. Doing 85mph. I prayed & got there in one piece.

  • @davidkillens8143

    @davidkillens8143

    2 жыл бұрын

    @@sharoncassell9358 We used to call fighter pilots "Kerosene Cowboys". But to be a successful fighter pilot you have to have that wild aggressive streak in you. If not, go fly transports.

  • @dennisalexanderreilly8624
    @dennisalexanderreilly86243 жыл бұрын

    You put it all together for me, thank you. I know what ship stabilizers do, but did not know that wing stabilizers actually work in a similar way. So happy to finally understand this!

  • @micahratliff3267
    @micahratliff32672 жыл бұрын

    I can't adequately express how mch I enjoy your content @Mentour Pilot! I stumbled onto one of your videos while scrolling on Facebook and I was instantly hooked by your in-depth analysis of the flight investigations. This had a huge imact on me, not only because it completely changed the light that I see airline pilots in, but it also made me realize just how much I am interested in aviation. Your videos have helped me realize something I'm passionate about and I eventually hope to recieve my type rating!!!! Much love and even safer travels!!!

  • @rogerhargreaves2272
    @rogerhargreaves22723 жыл бұрын

    A brilliant explanation. I always knew about the trim, but only the essentials, not the details. Thank again for taking your time to explain the physics of the trim and issues that can arise. I know it’s important to keep the trim Jack greased as well.

  • @MattyEngland
    @MattyEngland3 жыл бұрын

    I thought they were emergency power generators with hamsters inside.

  • @tuskiii

    @tuskiii

    3 жыл бұрын

    😂😂

  • @henkbarnard1553

    @henkbarnard1553

    3 жыл бұрын

    No! they are not, they are emergency power generators with kittens inside.

  • @andreaskavak2364

    @andreaskavak2364

    3 жыл бұрын

    @@henkbarnard1553 mini horses

  • @henkbarnard1553

    @henkbarnard1553

    3 жыл бұрын

    @@andreaskavak2364 Neigh can't be that.

  • @XB10001

    @XB10001

    3 жыл бұрын

    The Max 8 did, the trim had a mind of its own.

  • @TerminusAvid
    @TerminusAvid2 жыл бұрын

    I am way behind on Mentour Pilot, just found this channel a few weeks ago and love it! I am not a pilot but as a mechanical engineer I've always been very curious about airplanes. Despite having a good understanding of aerodynamics I've learned a ton and the best part is my fear of flying has improved! Thank you so much!

  • @srinitaaigaura
    @srinitaaigaura Жыл бұрын

    This video is just brilliant. It also explained why the pilots might have not known how to deal with the 737 Max MCAS issues.

  • @Corsairforu
    @Corsairforu3 жыл бұрын

    Thank you for this and the part about center of gravity and lift. I never knew the pitch needed trimmed so frequently, also I remember seeing the small adjustment knob types in WWII fighters

  • @elyana_
    @elyana_ Жыл бұрын

    I had exactly this question after watching another Mentour video! Thank you for helping me to learn so much about what pilots do.

  • @sloanemactire8780
    @sloanemactire87803 жыл бұрын

    Went into the video knowing that they're the trim wheels for adjusting the pitch trim, wondering how that was going to be a 20 minute video. Got WAY more information than I expected, including the mechanisms involved. Wow... awesome job!

  • @SwedishVFR
    @SwedishVFR3 жыл бұрын

    Love these videos! Good to be reminded of the stuff we already know. It’s also amazing that the small plane we fly has so many similarities with the big machines you fly, even if our machine is more primitive.

  • @joebrown1382

    @joebrown1382

    3 жыл бұрын

    I must be the only one that didn't know. How stupid of me.

  • @SwedishVFR

    @SwedishVFR

    3 жыл бұрын

    @@joebrown1382 now you know too! That’s what’s so great about these videos!

  • @Ssumwun
    @Ssumwun3 жыл бұрын

    Hey Mentour, i just wanted to let you know I really love your videos and I think you are an amazing person!! All the best!!!

  • @mentalizatelo
    @mentalizatelo3 жыл бұрын

    I always asked myself about those moving "disks"; thank you, very helpful information!

  • @carolynejayne121
    @carolynejayne1212 жыл бұрын

    I absolutely love all your videos! i’m not a pilot or training to be one but i find you an your videos fascinating! i’m also learning a lot about your subject.. i hope you don’t find it rather strange but i find your talking and chatter so relaxing your videos have now become my bedtime stories. Thanks lots Captain Petter 😍✈️

  • @JHamilton791
    @JHamilton7913 жыл бұрын

    I knew the answer before you stated it, having never flown a plane or used a simulator, because you're a great teacher.

  • @Zeck88522
    @Zeck885223 жыл бұрын

    I remember in Spartan College (aviation school) Instructor told us a story in class, of a prank they did to the pilot. They had a crew in back of the plane move back and forth from back of the plane to the front. Pilot was like wft is going on!!! I have to change pitch/trim all the time.

  • @jfbeam

    @jfbeam

    2 жыл бұрын

    they do that on subs, too.

  • @malcolmprice3654
    @malcolmprice36542 жыл бұрын

    My lovely daughter in law flies 737s. I had no idea she needed to be so strong! Love the videos. Thank you.

  • @ac9110
    @ac91103 жыл бұрын

    Another excellent episode. I love these. Thanks so much for making them and Happy Christmas!

  • @Exposingscammers
    @Exposingscammers3 жыл бұрын

    I remember asking a pilot what those wheels were as I didn't know. He explained it to me (about a year ago).

  • @George-jg9sy
    @George-jg9sy3 жыл бұрын

    They are levers for chemtrail dispersion obviously. Everybody knows that. :) :) :) 😂😂😂

  • @MentourPilot

    @MentourPilot

    3 жыл бұрын

    Hahaha

  • @martinlanders6135

    @martinlanders6135

    3 жыл бұрын

    🤣

  • @rogerhargreaves2272

    @rogerhargreaves2272

    3 жыл бұрын

    🤣🤫

  • @bg2junge

    @bg2junge

    3 жыл бұрын

    Aren't they now dispersing those 5g-microchip infused covid vacine with them?

  • @George-jg9sy

    @George-jg9sy

    3 жыл бұрын

    @@bg2junge Precisely. 😂

  • @EricMuller
    @EricMuller3 жыл бұрын

    Thanks for this video. A long time ago I was curious what they were and after a bit of googling figured out out. The discussion of the various kinds of failures and remedies was fascinating though.

  • @shiraga0516
    @shiraga05163 жыл бұрын

    This is exactly what I have been wondering lately while looking at your videos! Thanks!

  • @wrk101
    @wrk1013 жыл бұрын

    You should’ve worn your “This is how I Trim” t-shirt. Great video!

  • @WayneM1961
    @WayneM19613 жыл бұрын

    Hi Captain Petter, this fits in nicely with the video you did about the trim problems encountered by the two crashed 737 max's

  • @mikoto7693

    @mikoto7693

    2 жыл бұрын

    Oh, that explains why “runaway trim” sounded so familiar. I must have heard it from a 737 max documentary.

  • @tmshoe
    @tmshoe3 жыл бұрын

    That was a much more thorough explanation on trimming the horizontal stabilizer, than the earlier video. Well done.

  • @viktoriaelisabeth467
    @viktoriaelisabeth4673 жыл бұрын

    great video Capt Petter...wish you and your family a Happy Merry Christmas

  • @beernpizzalover9035
    @beernpizzalover90353 жыл бұрын

    11:00 Have you ever had the crank handle deploy inadvertently and strike you in the knee (or shin) while spinning? Just curious; I was looking at redesigning that a while back...

  • @fibboobbif

    @fibboobbif

    3 жыл бұрын

    Yes, i also wonder what happens in the airbus while trimming manually, where the cranks seem to be much closer to the legs if there are some.

  • @FerrariF108

    @FerrariF108

    2 жыл бұрын

    Sean Thompson maybe read a physics book one day 😉

  • @HexenkoeniginVonAngmar

    @HexenkoeniginVonAngmar

    2 жыл бұрын

    @@seanthompson258 Hello troll

  • @josvanhertrooij5972
    @josvanhertrooij59723 жыл бұрын

    Thank you for your explanation of the question I asked some time ago Regards Jos van Hertrooij

  • @proprotornut5389
    @proprotornut53893 жыл бұрын

    Great video. Always good to learn something new. Thanks. Have a great festive season. ✈️🏴󠁧󠁢󠁳󠁣󠁴󠁿

  • @debiandebianowski2033
    @debiandebianowski20333 жыл бұрын

    The pillows at Your sofa are also very OK. The red one on the left hand the green on the right;)

  • @MentourPilot

    @MentourPilot

    3 жыл бұрын

    😉

  • @Slyze33
    @Slyze333 жыл бұрын

    (19:36) "... if the trim keeps spining, that means you're flying a B737 max" ^^

  • @millomweb

    @millomweb

    3 жыл бұрын

    "What are those SPINNING things in the cockpit?!" - they are the wheels of doom.

  • @captaincurle4529
    @captaincurle45293 жыл бұрын

    After watching your channel, I know more about the 737 than the cessna 152 that I actually fly, and I feel like I pretty much have a 737 type rating 😂 Keep up the great work 😃 👍

  • @nicku1
    @nicku13 жыл бұрын

    Extremely informative video! Many thanks!

  • @shardulpawar1277
    @shardulpawar12772 жыл бұрын

    Well Explained, easy to understand. Thanks Bro

  • @antoniomaglione4101
    @antoniomaglione41013 жыл бұрын

    Thank you for all the information! I almost feel like I can fly a 737! Regards from the UK...

  • @atticstattic
    @atticstattic3 жыл бұрын

    "If you know a little about physics...." Yes - I am _that_ dangerous!

  • @Biggles2498

    @Biggles2498

    3 жыл бұрын

    atticstattic : you need AT LEAST "A" Level Physics to become an Airline Pilot Sir or Madam !

  • @HelloKittyFanMan.

    @HelloKittyFanMan.

    3 жыл бұрын

    @@Biggles2498: Why is the "a" in quotes? Is it not _actually_ one level? And why is every word a brand to you?

  • @Biggles2498

    @Biggles2498

    3 жыл бұрын

    @@HelloKittyFanMan. For the benefit of the uneducated "A" stands for "Advanced" ie Advanced Level Physics like done in the 6th Form at School.

  • @HelloKittyFanMan.

    @HelloKittyFanMan.

    3 жыл бұрын

    @@Biggles2498: Oh! Yeah, OK, that makes sense! Haha, duhhh (on me)! I asked because so many dimwits try to use quotes for stuff they weren't intended for, like emphasis. Speaking of using things for the unintended, why go out of your way to hit "shift" before every word?

  • @Biggles2498

    @Biggles2498

    3 жыл бұрын

    @@HelloKittyFanMan. Well I had to hit the Landing Gear Lever every time I intended to land my aircraft ....it would have been expensive and dangerous not to do so.

  • @Lyran_princess
    @Lyran_princess Жыл бұрын

    Excellent explanation. I am a flight dispatcher. I never really understood stab trim other than it being a number we work out on the trim chart, but now it makes sense.

  • @danniballecter7936
    @danniballecter79362 жыл бұрын

    Glad I watched this video. I've been watching a lot of aviation videos (on this channel and others) and kept hearing the term "trim" but didn't understand what it was or what it did. I had a basic understanding of elevators, rutter, etc...but just not the trim. Thank you for such a clear (and detailed) explanation!

  • @ssgsol
    @ssgsol3 жыл бұрын

    Awesome vid! I have long wondered, but been to shy to ask! I feel I understand so much more now. I have long wondered about the MCAS failure on MAX, and now get much more how integral the jack screw stabilizer movement is to flying the plane. I need to AMP up my home sim and try to learn more. (Trim input on my hangglider is all manual :-) )

  • @mikoto7693

    @mikoto7693

    2 жыл бұрын

    I did wonder what they were there for during the “could a passenger be talked through landing a 747” video. In honesty in that scenario even in a flight simulator I’d be so tense and anxious that when they first span around in my presence I wouldn’t have been expecting it and almost jumped out of my skin. That being said, I’m surprised that my guess on their function wasn’t actually that far off as I figured they probably were some kind of manual control just in case the computer took inspiration from my PC at home and just stopped working for no apparent reason. Which, given my closest experience to piloting is when I stole a fighter jet in one of the Grand Theft Auto games, wasn’t a bad guess.

  • @jumbodj
    @jumbodj3 жыл бұрын

    You mentioned quite a few times about the spinning things getting jammed and how to manually turn them but how often does that happen? Have you personally ever encountered that situation and wondering whether at that moment of urgency (noticing the failure) is it really possible to focus on manually turning them?

  • @jonnytoast
    @jonnytoast6 ай бұрын

    Great information in this video. Explained clearly. Keep it up

  • @gilmarriner3011
    @gilmarriner30113 жыл бұрын

    When I did my initial upgrade training in the 737 we were told that in order to stop a runaway trim just reach over and pull the FO‘s leg into it. Preferably with the handle extended.

  • @topofthegreen
    @topofthegreen3 жыл бұрын

    I feel like I’m getting a you tube type rating.

  • @glennllewellyn7369

    @glennllewellyn7369

    3 жыл бұрын

    Go flying. It’ll help.

  • @Biggles2498

    @Biggles2498

    3 жыл бұрын

    I had 15 type ratings but I suppose I have 16 now thank you Michael Pare !

  • @g_pazzini

    @g_pazzini

    3 жыл бұрын

    i use the type rating to fly my MSFS 😀

  • @livewellwitheds6885

    @livewellwitheds6885

    3 жыл бұрын

    lol

  • @jimmeade2976
    @jimmeade29763 жыл бұрын

    Petter, would you please explain/comment on Alaska 261 that lost control and crashed in the Pacific in Jan 2000 due to a failed stabilizer.

  • @tubby1

    @tubby1

    3 жыл бұрын

    How did you post this 58 minutes ago when the video was only posted 2 minutes ago??

  • @SwedishVFR

    @SwedishVFR

    3 жыл бұрын

    @@tubby1 we patreon’s get to se the video a little bit earlier!

  • @malloyneil40

    @malloyneil40

    3 жыл бұрын

    The nut broke because it had not been properly lubricated. In part this also happened because the flight crew went outside of SOP and tried to fix the stab trim by activating both trim motors at the same time.

  • @jimmeade2976

    @jimmeade2976

    3 жыл бұрын

    @@tubby1 I have a HOT Tub Time Machine ... works best in Winter

  • @MrAgrimkohli
    @MrAgrimkohli3 жыл бұрын

    Thanks for the very informative n intresting vdo. Due to Covid my air travel has completely stopped. But still curious about planes I started watching vdo's about planes and got attracted to air crash investigation's, but didn't knew the technical details. This video cleared me about trimming the aircraft. subscribed!

  • @mikemoreno4469
    @mikemoreno44692 жыл бұрын

    That was fascinating. Thank you very much, Captain. I enjoy your videos immensely.

  • @BertMackFilm
    @BertMackFilm3 жыл бұрын

    Love the videos! I chuckle every time you say stab - ilizer 🔪

  • @tomtheplummer7322

    @tomtheplummer7322

    3 жыл бұрын

    Stab-ilizer is established 🗡

  • @cesarnc2008

    @cesarnc2008

    3 жыл бұрын

    😂😂😂

  • @fredashay
    @fredashay3 жыл бұрын

    When I was a kid, I built and launched model rockets. I remember one of the primary rules of rocket physics was that the center of pressure must be behind the center of gravity. The farther apart these two points are, the more stable the rocket will fly. The fins move the center of pressure to the rear/bottom of the rocket. Adding mass/weight to the nose moves the center of gravity toward the front/top of the rocket.

  • @rogerhargreaves2272

    @rogerhargreaves2272

    3 жыл бұрын

    Great comment. 👍

  • @hassanalihusseini1717

    @hassanalihusseini1717

    3 жыл бұрын

    O, yes, did the same as a kid and even as a student. Long time ago, but good memories!

  • @Lucien86

    @Lucien86

    3 жыл бұрын

    You certainly learn the same thing the hard way playing Kerbal space program.

  • @fredashay

    @fredashay

    3 жыл бұрын

    @@Lucien86 Indeed! KSP is one of my favorite games!

  • @heyyolistenwhatisayo
    @heyyolistenwhatisayo3 жыл бұрын

    You're very patient and informative. Thank you mate!

  • @kidsaviationmentour
    @kidsaviationmentour Жыл бұрын

    Thank you for the great explanation....

  • @mumiemonstret
    @mumiemonstret3 жыл бұрын

    I always thought that they were some kind of angle grinder intended to prevent the pilots from falling asleep and letting their knee touch it...

  • @mumiemonstret

    @mumiemonstret

    3 жыл бұрын

    @@seanthompson258 "Plane site" 🤣😂You are hilarious!

  • @thewhitefalcon8539

    @thewhitefalcon8539

    3 жыл бұрын

    @@seanthompson258 if the earth is a plane who flies it?

  • @TheKilman102

    @TheKilman102

    2 жыл бұрын

    @@seanthompson258 plane sight x) if the earth is flat how can a plane fly from usa to japan? Where is this edge? x)

  • @MrSaemichlaus
    @MrSaemichlaus3 жыл бұрын

    "If you're not clacking, you're slacking." - 74 gear

  • @jfquirosreyes
    @jfquirosreyes3 жыл бұрын

    Great and easy explanation. Congratulations.

  • @98-24
    @98-24 Жыл бұрын

    Thank You for the info, That was driving me nuts!!!

  • @joeblow5154
    @joeblow51543 жыл бұрын

    I wonder how much of a degree the stabilizer moves per rotation of the wheel.

  • @P991TS
    @P991TS3 жыл бұрын

    Haven’t you done a video about this already!?🤷🏻‍♂️☺️

  • @P991TS

    @P991TS

    3 жыл бұрын

    @Tyler Sinden ah, okey! It’s wasn’t any complaints tho, just a thought 😁

  • @TheGbelcher

    @TheGbelcher

    3 жыл бұрын

    @Tyler Sinden Wasn’t the other video specifically about the MCAS failure on the MAX?

  • @ryanguzek361

    @ryanguzek361

    3 жыл бұрын

    @@TheGbelcher 3 years ago he has a video titled "what is that spinning thing" not specifically about mcas

  • @TheGbelcher

    @TheGbelcher

    3 жыл бұрын

    @Jason Bowman The children that run KZread probably didn’t like it either.

  • @Lvlaple4Ever

    @Lvlaple4Ever

    3 жыл бұрын

    He’s milking us like cows 🤡🤡🤡

  • @quoctu1701
    @quoctu17012 жыл бұрын

    Excellent presentation. Thank you

  • @ziggy-pn4ts
    @ziggy-pn4ts2 жыл бұрын

    You just answered the question I asked you in the video I watched before this one. Thank you.

  • @danuttall
    @danuttall3 жыл бұрын

    An accident with Alaska Airlines happened because of a vertical trim failure due to maintenance scheduling issues. The airplane had not been serviced properly and the jack-screw was not properly lubricated. It then got stripped and came out of the nut that connected it to the horizontal stabilizer and the pilots lost control of the pitch of the aircraft. Not a good thing.

  • @paul756uk2

    @paul756uk2

    3 жыл бұрын

    Exactly what I was thinking when watching this.

  • @thewhitefalcon8539

    @thewhitefalcon8539

    3 жыл бұрын

    and now I can't hear "jackscrew" without cringing

  • @commerce-usa
    @commerce-usa3 жыл бұрын

    So those switches on the wheel aren't volume up and volume down. 😀 Nice explanation and another great video. Thank you.

  • @kenbarber6592

    @kenbarber6592

    3 жыл бұрын

    Mine goes up to 11.

  • @nicflatterie7772

    @nicflatterie7772

    3 жыл бұрын

    It’s the radio tuner!

  • @stephensogaard9222
    @stephensogaard92222 жыл бұрын

    you are doing a lot of instructive videos, well done !! keep on flying

  • @airfoxtrot2006
    @airfoxtrot20063 жыл бұрын

    Great video Mentour have a great Christmas my friend

  • @johnjacob5839
    @johnjacob58393 жыл бұрын

    Are those port & starboard running lights on the sofa?

  • @MentourPilot

    @MentourPilot

    3 жыл бұрын

    Indeed 😉

  • @deusexaethera
    @deusexaethera3 жыл бұрын

    I always thought they were fidget spinners for the pilots to play with when they get bored. Seriously though, trim is equally important for RC cars. When you've got a toy car going 60 miles an hour with less than half an inch of ground clearance, the car is capable of veering off-course and smashing into a curb (or someone's ankle -- or face, if the car catches the air and turns into a kite -- yes that can actually happen) before you even have time to realize something is going wrong. So you have to trim the steering accurately enough that you can punch the throttle and accelerate all the way to top speed with minimal steering input, or else the car will be too unstable to actually drive.

  • @oliwek70

    @oliwek70

    3 жыл бұрын

    In your RC car example, is it not rather like a deadzone setting, more than a trim ? (you make the deadzone bigger, so that little impulses on the stick are not registered, where a trim acts as a force, and moves the center of an axe in one direction, so that if you release your hand or thumb from the remote, it centers on a value different than the original untrimmed zero value, in your case the RC car would then have a tendency to turn, as a real car with bad wheels geometry). If it is a trim in the case of RC cars, is it because the small car has an issue of wheels geometry, or because of outside factors ? (such as wind, or the track geometry)

  • @viswanaathv.s.220
    @viswanaathv.s.2203 жыл бұрын

    Wow !!! every time I climb up the stairs of an aircraft, especially on the back entrance, I wonder why there are markings like a measuring scale. Beautiful explanation. Thanks for making effort to make this video. Super !! keep the good work going.

  • @JeremyEllwood
    @JeremyEllwood3 жыл бұрын

    I'm just hitting every video in my recommended using "Open in New Tab" to wish everyone a happy and safe end to 2020! Love all of you (even if I've argued with you). Be safe, be well, know you're loved, let's work our asses off to make 2021 a little less... grim. No matter your deity (if any), we are humans... let's stop acting like it and actually come together for a better world.

  • @rex69832

    @rex69832

    3 жыл бұрын

    The same to you, Jeremy. Let's see if we can make 2021 better. Since 1200 BC we've had more than 250 epidemics and we're still here. This latest virus won't take us out either. It WILL take out the elderly and those with a compromised immune system.

  • @meritwolf219
    @meritwolf2193 жыл бұрын

    A lovely video, as always. Is this in response to the Max entering service again? Or are you at liberty to explain why you are revisiting this subject? (Not that you really need much reason. The trim system is surprisingly fascinating.)

  • @MentourPilot

    @MentourPilot

    3 жыл бұрын

    No, it has nothing to do with the MAX

  • @resortsman

    @resortsman

    3 жыл бұрын

    It is a weird video. There is obviously no mention about Max as if the pilots were not allowed to talk about it anymore. It sounds and looks like some Boeing promo video. The airlines using them are probably counting on that people will not be asking about the aircraft type after lockdowns are finally lifted being happy to be able to fly somewhere at all. But I think that the whole era of cheap flying in cramped economy class represented by obsolete 737 is over. People will be willing to pay more for their safety and comfort and the bet on Max entering the service again as if there was no pandemic is wrong.

  • @thewhitefalcon8539

    @thewhitefalcon8539

    3 жыл бұрын

    @@resortsman what is with the amount of dumb conspiracies under this video

  • @flapjackson6077
    @flapjackson60772 жыл бұрын

    That was very educational. Thanks! 🤙

  • @purplealice
    @purplealice3 жыл бұрын

    Clear skies and happy landings, and happy holidays - whichever one you celebrate.

  • @damagepy
    @damagepy3 жыл бұрын

    If all trim and control system fails and stucks, is it possible to fly or land or turn the plane if full of obeying passengers (in theory) just by ordering them to go to the left/right side of the plane or if everyone moves/runs to the front/back of the plane or somewhere inbetween assuming they can go to the proper spot perfectly and instantly? :) Can they mess up the landing by running around and jumping in sync, and if yes then how much? :)

  • @Lucien86

    @Lucien86

    3 жыл бұрын

    Yes I think you can. - Though it would be far more for elevator trim than roll trim because of the shape of the cabin.. The big problem though is that passenger control response time tends to be pretty slow. (which then tends to lead to things like uncontrollable feedback oscillation..)

  • @ORIGINALwhatnow
    @ORIGINALwhatnow3 жыл бұрын

    He said "with me so far" Me: still here but not understanding anything 😂🤣

  • @TheEline2733
    @TheEline27333 жыл бұрын

    I like the way you’re explaining everything. I now have a better understanding on how this works.

  • @alix5704
    @alix57043 жыл бұрын

    Thank you for talking about the spinning things; was always wondering about that

  • @DerbJd
    @DerbJd3 жыл бұрын

    "....... Seems as the 737MAX planes are coming back, I thought I'd discuss this......" - MP

  • @steinarnielsen8954

    @steinarnielsen8954

    3 жыл бұрын

    @Jim Mork If you prefer something more dangerous than the MAX or the amusement park, I can suggest driving a car.

  • @steinarnielsen8954

    @steinarnielsen8954

    3 жыл бұрын

    @Jim Mork There have been countless examples of cars crashing into mountains or plunging into water. Drowning is never a pleasant way to die. If a plane crashes into water usually people die quick and painless.

  • @xiro6

    @xiro6

    3 жыл бұрын

    @Jim Mork no intention to argue about that,but you can google for the toyota trhottlegate case.a bug in the code of some toyota models who make the car suddenly go full power. not a faulty sensor or similar,a real program bug that make the car go full throttle.

  • @xiro6

    @xiro6

    3 жыл бұрын

    @Jim Mork there was quality control staff who got fired because they found they were using substandard parts,making them fit by drill and hammer,specially the wing forks,those who later needed replacement and much more parts.there is no regulators actually,boeing certifies itself their own airplanes and the regulator just accept the incoming documentation,without test or verify nothing.thats why they are not more the standard for the rest of the world like before.there are documentarys here on YT,and they seem legit. The toyota case,it seems the code was a pretty nasty mess,plagued with patches over patches never cleaned.finally they accept to pay to the US goverment on the condition to not look further. dont know who is worse.

  • @obstinatejack
    @obstinatejack3 жыл бұрын

    this sounds complicated and arcane, and i now realize how much of a novelty fly-by-wire systems can be

  • @bobfels5343
    @bobfels53433 жыл бұрын

    Wow love the explanation, thanks man, cool T-shirt btw :D

  • @benpatsy2076
    @benpatsy20762 жыл бұрын

    Beautifully explained.

  • @nfjrb
    @nfjrb3 жыл бұрын

    Supposing many aircraft in a holding pattern at a busy international airport. What is the standard response when communication from ATC is completely cut?

  • @ilovecops6255

    @ilovecops6255

    3 жыл бұрын

    PHONES HT EORKIN MAN OR CHANGE TO SPRINK OR MCI FO RLOND DIOSTANSE SAVEINGES,

  • @ilovecops6255

    @ilovecops6255

    3 жыл бұрын

    @Peter Mortensen hello mine frende! are yiue rekated ti Torre Migewbse who used t bee ts TC electrices? THNKES YUE AD TUBBMERS UPPSERESES!

  • @p11111
    @p111113 жыл бұрын

    How often do you bang your knees into those cranks, or have one start spinning while your knee is resting against it?

  • @suttoncoldfield9318

    @suttoncoldfield9318

    3 жыл бұрын

    Just the once, then you keep your knee out of the way

  • @kevinroberts2395
    @kevinroberts2395 Жыл бұрын

    Fascinating. Thanks for sharing.

  • @JTSAMPSON04
    @JTSAMPSON043 жыл бұрын

    You did a great job!!! I suggest you do segments on the secondary systems such as the flaps, etc as well as other trim systems ( yaw & roll).

  • @dogwalker666
    @dogwalker6663 жыл бұрын

    Not the same without the doggies in the background.

  • @dogwalker666

    @dogwalker666

    3 жыл бұрын

    @Jim Mork the black one is just as cute.

  • @dogwalker666

    @dogwalker666

    3 жыл бұрын

    @Jim Mork oh I see.

  • @kpn574

    @kpn574

    3 жыл бұрын

    Normally they were always busy sleeping though😁. Bored with all the airplane stuff!

  • @dogwalker666

    @dogwalker666

    3 жыл бұрын

    @Jim Mork as soon as he stops speaking they are straight to the door wanting exercise.