What are those SPINNING things in the cockpit?!

  • Am Vor 9 Monate

    Mentour PilotMentour Pilot

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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
    de-film.com/v-video-rxPa9A-k2xY.html

Mememememe
Mememememe

HAHA! Love the t-shirt :P

Vor 17 Stunden
David Loftus
David Loftus

They could install a braking system on the spinning things to save burning our hands when the run away!

Vor 9 Tage
Mohit Verma
Mohit Verma

Back in 2015, I was on a flight from Kuala Lumpur to New Delhi traveling on a Malaysian Airline A330. It was a near perfect smooth flight throughout except for one instance. Past midnight, somewhere over mid of Bay of Bangal (Indian ocean), the flight almost instantly pitched down aggressively for about 2 seconds and about a second or two later pitched up with same aggression and duration (apparently a corrective measure) and flight got back to normal cruise. Having studied aerospace engg, I fairly understand functioning of an aircraft and dont get bothered about turbulance knowing aircrafts are capable. But that incident scared the hell out of me. Pilots never announced anything about it. It is still a mystery to me what might have happened. Possibbly a trim issue, as you explained?

Vor 13 Tage
LACHICA Earl John L.
LACHICA Earl John L.

Whelp that's what stabilizer trim so that's what it MEANS

Vor 21 Tag
Wargasm644
Wargasm644

So if a fat man goes to the restroom, the spinning thingys start moving?

Vor 23 Tage
Earl Rust
Earl Rust

Good video! Please make more about how things work on an aircraft.

Vor 24 Tage
Scott Marinello
Scott Marinello

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.

Vor 27 Tage
Geoffrey Dommett
Geoffrey Dommett

how did the 737max go down if the trim was stoppable by cut off switch?

Vor 28 Tage
AnnBearForFreedom
AnnBearForFreedom

In the case of a runaway stabilizer trim wheel, why can't you extend the manual handles, then stand a long metal rod or stick or whatever onto the floor and jam it up against the handle so it can't turn any more? It would seem slightly safer than grabbing the handle and holding it. What am I missing?

Vor 29 Tage
NIlsUrban
NIlsUrban

Why does the landing gear lever always have a skateboard wheel on it ? 🤔

Vor 29 Tage
Dingles Dougles
Dingles Dougles

Airbus = Windows Boeing = Linux in my mind

Vor Monat
LoneGhostOne
LoneGhostOne

I've learned from the flight sim IL-2 that some older aircraft from early WWII didnt have adjustable trim -- they had tabs that the ground crew bent to adjust. In a prop-aircraft this is awful since you have to manually input on all the controls during virtually all points of flight. one of the aircraft types used to have no limit on speed of vertical trim adjustment in the game (when the pilot had to spin a wheel similar to the 737) Some players bound this to joystick controls and started flying like UFOs...

Vor Monat
Chingkhei Nganba Sapam
Chingkhei Nganba Sapam

Excellent explanation, really appreciate the detail. I am a bit curious to know the chances of these spinning wheels, trapping clothes or long hair. And if ever it happens to trap what is the torque of these spinning trim wheels and are they strong enough to do any serious damage? Thanks.

Vor Monat
TheAatupaatu
TheAatupaatu

Those are so last season. Only 737 has them. And A320, 330 and 340 but they are not spinning. Only moving gently.

Vor Monat
Others 2810
Others 2810

excellent explanation

Vor Monat
Alex C
Alex C

After reading about Alaska Airlines 261 I am condemned to cringe every time someone says "jackscrew"

Vor Monat
Caper. here
Caper. here

Thank you for explains this.

Vor Monat
Sean Thompson
Sean Thompson

Pilots know that the earth is a FLAT PLANE as they keep the aircraft level at all times apart from takeoff and landing to fly over the FLAT PLANE they dont dip the nose to fly around the illusionary Ball earth because it is a FLAT PLANE! Hence the word AEROPLANE not and AEROSPHERE the truth hidden in PLANE SITE if you can think for yourself!!!

Vor Monat
Speedbird
Speedbird

Gotta love this level of ignorance😂🤣👍🏻👏🏻

Vor Monat
Tom Leadbitter
Tom Leadbitter

Always wondered what the heck they were - thanks. "Stab-a-lisa" trim wheels.

Vor Monat
Peter Wood
Peter Wood

Why aren't there more external cameras on an aircraft to assist in gaining a better idea of what's causing a problem, especially near the engines/vertical stabilizer and landing gear?

Vor 2 Monate
caspar coaster
caspar coaster

Dude... yove bulown my mind... tonight am glad the internet exists, and I pay the Y0utube premi...this is the stuff the head cases who invented human flight had to figure out, riding a kite in the wind, without getting killed. I live in the mts of western NC USA.. I gotta go and offer a prayer of gratitude at Kitty Hawk beach, in case God Almighty exists, and gave the ideas to those dudes//, and click liked

Vor 2 Monate
Speedbird
Speedbird

Without getting killed? Otto Lilienthal would disagree..

Vor 2 Monate
Iriga Richard
Iriga Richard

Very informative, but why are the Stab Trim cutout switches two of them? why not just one master cut out switch?

Vor 2 Monate
Phil Scott
Phil Scott

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!". 🤣

Vor 2 Monate
Tony Trilex
Tony Trilex

I bet these pilots get a lot of trim!!

Vor 2 Monate
Bob D
Bob D

I don't know how possible it would be (strength, space, design...) but I wonder if there would be a way to put a positive lock on the trim wheel to stop it in place, and hold it to where you want to trim to to relieve hand pressure of holding it. Basically like the hand crank winch used for launching smaller boats. Essentially, a winch mechanism that is deployable for the last line of failure.

Vor 2 Monate
Greg Wochlik
Greg Wochlik

During a holiday, I booked a 1hr scenic charter flight from a local flight school in a training aircraft. My father didn't have any pilot training (opposed to me), but he understood most of the systems. The aircraft was a Piper with the trim crank in the ceiling. That is the only system which my father did not understand. I was unable to successfully explain it to him. I guess one needs to experience the trim from the pilot's seat in order to understand it.

Vor 2 Monate
Simon
Simon

my only question is how many times did those spinny things take the skin off your arm before you stopped instinctively looking for an arm rest?

Vor 2 Monate
Sean
Sean

What about fly-by-wire aircraft? In the case of a trim failure or when flying manually with improper trim, wouldn't it still be just as easy to control the pitch with the primary flight controls? Is this a good thing or could it make the pilot more oblivious to improper trim?

Vor 3 Monate
Wanjiru Mungai
Wanjiru Mungai

Well and simple explained.

Vor 3 Monate
John Veld
John Veld

Many small planes also use full stabilizer jackscrew trim systems .

Vor 3 Monate
John Veld
John Veld

What amazes me is that a pilot, using an 8” wheel 100 ft away, can manipulate a massive flying surface through a cable and pulley system…. Taking into account flexing of the fuselage, and thermal expansion.

Vor 3 Monate
CB
CB

Been wonderin this!

Vor 3 Monate
gaurav kapoor
gaurav kapoor

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

Vor 3 Monate
Nic Flatterie
Nic Flatterie

Like cruise control for trim.

Vor 3 Monate
MrRedsjack
MrRedsjack

Italian pilots used to call the load sheet the "sheet load" because in italian the words are inverted and adding the italian accent that was an unending source of amusement to English speaking pilots.

Vor 3 Monate
Ultra - Brawl stars
Ultra - Brawl stars

They are trims

Vor 3 Monate
Levent Sasmazel
Levent Sasmazel

Can you use trim in 737 in case of yoke elevator failure like in the piston engine ?

Vor 3 Monate
Gabriel Palileo
Gabriel Palileo

Bit late, but in the case of having to grab the wheel to prevent it from moving, would it be possible to get some sort of item to just lodge the wheel in place?

Vor 4 Monate
Shenzhen 深圳
Shenzhen 深圳

it smems in A320 the trim wheel can’t manually rodtated ?

Vor 4 Monate
A
A

And I thought it was a random number generator wheel for the air crew to play bingo with on long haul flights.......

Vor 4 Monate
aymy com
aymy com

Can in 737 max stablizer trim is used instead of macs to cancel the nose up attitude

Vor 4 Monate
Casper Creative Media
Casper Creative Media

Very interesting and informative video! My question though: why would you have make such heavy inputs to the yoke if trim fails? Because aren't the control surfaces powered by hydraulics or servo motors?

Vor 4 Monate
Speedbird
Speedbird

@Casper Creative Media Yeah, that was the pitch down runaway stabilizer situation which they simulated. If that happens they`ll really just have to use the cutout switches and that will disable stabilizer electric trim.

Vor 4 Monate
Casper Creative Media
Casper Creative Media

@Speedbird oh ok. Looked like they were really struggling to pull the yoke. Especially with having to grip it with both hands and hold back on it.

Vor 4 Monate
Speedbird
Speedbird

Huh? You dont have to make heavy inputs, you just have to give continous inputs if needed. They did a simulator test in a runaway situation if thats why you asked.

Vor 4 Monate
Michael R Murphy
Michael R Murphy

Mentour...The internet was MADE for cat and cockpit videos! Who needs all that other crap?! B777 into Haneda in rain...

Vor 5 Monate
Michael R Murphy
Michael R Murphy

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

Vor 5 Monate
Michael R Murphy
Michael R Murphy

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?

Vor 5 Monate
M.Keil
M.Keil

What about the Rudder? How is that trim dealt with? From my RC Airplane days, trim was just an offset to each channel. I didn't realize the whole elevator surface was being adjusted!?!

Vor 5 Monate
Speedbird
Speedbird

Three different flight control surface trims on the 737NG (and most other aircraft probably): Horizontal stabilizer, Aileron and Rudder. It quite simple just a rudder trim control knob in the cockpit to control the rudder via a rudder trim actuator.

Vor 5 Monate
Karpuffelstein
Karpuffelstein

Sabena flight 548, a Boeing 707, crashed on February 15th 1961 near Brussels, killing all 72 on board and one on the ground. Among the passengers were the whole US figure skating team, on their way to the world championships in Prague. The cause of the crash was never determined beyond doubt, but apparently, the bodies of the pilots were wearing these 'fire gloves' mentioned in the video, so they must have been struggling with the trim wheel. Most likely, the cause was a runaway horizontal stabiliser that made the pilots loose control during approach. One of the measures imposed after the crash, was installing those two stabiliser cutout switches also mentioned in the video.

Vor 5 Monate
Michael Bond
Michael Bond

With a runaway stabilizer that isn't stopped by using the trim switches or stab trim cutoff switches, that's a mayday call right? I'm assuming if it is stopped it might be a pan pan call?

Vor 5 Monate
chase evans
chase evans

The wealthy support globally apologise because writer usually suspect an a special closet. measly, abstracted carrot

Vor 5 Monate
esce69
esce69

@Mentour Are the 2 trim-wheels always moving together or can left and right be trimmed separately? And if so, for what purpose? (Obviously I'm not a pilot, just curious.) Love your videos btw. very informative and you're a captivating speaker, and your dogs are just so zen 😄

Vor 5 Monate
Speedbird
Speedbird

They always move together👍🏻

Vor 5 Monate
Cherry
Cherry

🎈

Vor 5 Monate
David Hall
David Hall

So why are the trim wheels not in sync?

Vor 5 Monate
Speedbird
Speedbird

Sometimes they are..🙃They are not because it is not required that they are. The wires are adjusted to tension by turning a turnbuckle making the two trim wheels go in opposite direction of each other.

Vor 5 Monate
Will Anthony
Will Anthony

Thank you Mentour Pilot, I'm sure this helped some people to understand the trim, but since I know that all this info doesn't fit into everyone's head I have a message for them. Let's say we are driving a car in the highway and of course we want it to go straight. But the roads they are not flat and leveled because the water from the rain needs to drain away from the road surface. So, the roads could be either higher in the middle and lower on the sides or lower on one side and higher on the other. The front wheels of the vehicle are trying to turn toward the lower side. In other words the car does not want to go straight but it pulls slightly to that direction. To compensate for that, you apply a little pressure on the steering wheel toward the opposite direction and you hold it there and this way you are forcing the car to go straight and not toward the curb, the ditch. What you just did is you "trimmed" the wheels of the vehicle. In the same manner, the pilots adjust the aircraft's aerodynamic controls in a way to compensate for the deviation from their route due to winds and other weather conditions that push the aircraft left or right or up and down. I will not provide any further technical details nor what the aircraft systems do to help out the pilots to lighten their workload because that's the job of the Mentour Pilot.

Vor 5 Monate
Frankie V
Frankie V

Coffee grinder?

Vor 5 Monate
Sloane Mac Tíre
Sloane Mac Tíre

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!

Vor 5 Monate
debian debianowski
debian debianowski

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

Vor 5 Monate
Mentour Pilot
Mentour Pilot

😉

Vor 5 Monate
emsicz
emsicz

My questions 1. Can the spinning wheel injure flightcrew? Say autopilot is doing some correction and one of the pilots puts their hand there? Or during manual “graso and hold” the pilot holding slips hand and the runaway elevator starts moving, can the spinning wheel break his fingers or something? 2. What mechanism is used to keep the elevator trim in one position? Is the electric motor constantly applying force one way and the other so that the elevator doesn’t move or is there some kind of brake that disengages whenever a trim is required?

Vor 5 Monate
Shyfillie
Shyfillie

Like a cruse control in a car?

Vor 5 Monate
greenola
greenola

Enjoy your work fella. Thanks again.

Vor 6 Monate
Mentour Pilot
Mentour Pilot

Thank you!

Vor 6 Monate
Amy Anderson
Amy Anderson

Lol just get a bungee cord and hook it to the seat 😀

Vor 6 Monate
Hqpm8 Nwu47
Hqpm8 Nwu47

The slimy baseball proportionately crawl because liquid surprisingly prevent including a hushed exhaust. wandering, half dime

Vor 6 Monate
Anatolii
Anatolii

Why not have some mechanical stoppers to jam the wheels if they spin out of control? Why the last resort is use your own hands to hold?

Vor 6 Monate
Speedbird
Speedbird

Did you go quiet?🤔

Vor 6 Monate
Speedbird
Speedbird

@Anatolii Sorry to tell you, but I know more about the mechanics of a 737NG then Mentour. I have much respect for the pilot profession and their knowledge regarding aircraft handling and maneuvering. And I respect Petter for his ability to gather technical information and explaining it to the general public. But with great respect, this is my professional area and not his.

Vor 6 Monate
Anatolii
Anatolii

Sorry dude but I assume Mentour and aviation industry know more about how aircraft works. So I won’t argue about technical intricacies of the immensely complex machine neither you nor me fully understand. I will instead assume that if the possibility was considered for the trim to change for other reasons than electric, this is a real possibility, albeit unlikely.

Vor 6 Monate
Speedbird
Speedbird

@Anatolii It doesnt..if it goes the threads are gone and there is no recovery from that. Whats included in the checklist?

Vor 6 Monate
Anatolii
Anatolii

Except when it does, you pay with a couple hundred lives. If it is included in the checklist, it is probably for a good reason.

Vor 6 Monate
Shawn Elliott
Shawn Elliott

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.

Vor 6 Monate
Oli Wek
Oli Wek

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)

Vor 2 Monate
Schül
Schül

I have a Question regarding your last point, that when you have a runaway situation and nothing else will help, you have to use your hands and try to stop the wheels. And as you said, this can get you hurt pretty badly. So why are there no manual brakes on those wheels? Like a lever operated Drum- or Discbrake, not unlike the emergency brake in cars, only that this connects directly to the Trimming wheels? There would not be a high failiure risk, if you use quality materials, and if it breaks you can still use your hands, but atleast you have the chance to get back control of the situation without hurting yourself. And I would believe that handling any emergency situation is easier if you are unharmed.

Vor 6 Monate
Schül
Schül

@Speedbird oh okay, that is how it works. Thank you very much for answering my question, you helped me a lot in understanding this matter. I am very sorry, if my question was silly, but thanks again for clarifying!

Vor 6 Monate
Speedbird
Speedbird

In a runaway situation the cutout switches will stop the stabilizer from moving. It will not move mechanically if you dont give it any input. A cable drum moves the jackscrew via a gearbox, the cable drum can also move the jackscrew via a electric motor called the stab trim actuator. The gearbox has two internal brakes and a mechanical clutch. Both of the brakes are ratchet type brakes.

Vor 6 Monate
Brandon
Brandon

Have you heard of anyone getting fingers or their clothing caught in that wheel? Looks kinda scary how quickly those rotate

Vor 6 Monate
Rogier Maas
Rogier Maas

Hey Mentour, just a tip: you say 'stahbalisers' when the pronunciation is 'stay-balisers'. Great video's you but up! Vielen dank!

Vor 6 Monate
Speedbird
Speedbird

Echt!?🙄I most certainly do not pronunce an "y" in stabilizer.

Vor 6 Monate
Ralph Dratman
Ralph Dratman

That sequence of recovery actions sounds pretty stressful. It seems like there should be some way to immobilize the trim wheels without just holding them manually!

Vor 6 Monate
Alex C
Alex C

Well you disconnect the autopilot and if that doesn't work you disconnect the motors. How likely is it that the trim wheels still keep turning with the motors cut off? Probably not very. I can think of an electrical short causing the motors to run uncommanded, no ideas other than that. Even Alaska 261 wouldn't have had this symptom - the trim system didn't run away, the whole stabilizer detached from the trim system.

Vor Monat
Ethan's Aviation
Ethan's Aviation

Yeah there is, you use the cut off switches then u use the handle

Vor 6 Monate
msun12000
msun12000

Am wondering if it would be a good idea to have some form of pressure sensor on the nose wheel leg which could be used to check the centre of gravity of the aircraft on the ground before take-off. Perhaps this exists already as a confirmation check to get the optimum trim for take-off?.

Vor 6 Monate
Dominic Nganga
Dominic Nganga

Wow .how I miss to fly ,hope this will come to reality

Vor 6 Monate
astemeer
astemeer

Watch at 1.25. You’re welcome

Vor 6 Monate
Bob Fels
Bob Fels

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

Vor 6 Monate
A68k
A68k

and again learned a really interesting thing, thanks! (did I miss this or not understand..) one question - if the elevator wings are controlled with a mechanicaly connected motor, will this be disconnected in case you have to trim the elevator wings manually, or fight again the mechanic motor??

Vor 6 Monate
E. Marquise Sanders
E. Marquise Sanders

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

Vor 6 Monate
Gissie
Gissie

No! Centre gtavity is DIFFERENT TO centre of mass! They difcer sometimes A level P.E GIVES exames thats err you did. 3.58.

Vor 6 Monate
Stan Long
Stan Long

Great video explaining the trim but what really impressed me was Mentour Pilot. By that, I mean he demonstrated that he had the one thing that is crucial in all situations, common sense.

Vor 6 Monate
Stan Long
Stan Long

@Mentour Pilot I consider the DC-3 (1930's) as thee airplane in the propeller arena and they are still in service in all varieties all over the world. Would I be wrong in saying that in future years the 737 will be of a similar take (thee airplane in the jet arena) as the DC-3?

Vor 6 Monate
Mentour Pilot
Mentour Pilot

Thank you 😊

Vor 6 Monate
Mike Echo
Mike Echo

If you have a runaway trim, and have to hold the wheel, why don't they just provide a solid LOCK leaver that you can lock in place to hold the trim wheel, instead of trying to hold it in place by hand?

Vor 6 Monate
Speedbird
Speedbird

You`ll use the cutout switches if you have a runaway trim😉

Vor 6 Monate
styles2000bc
styles2000bc

what i love about this channel is i'm sat watching one of these vidoes thinking "I wonder what those spinning wheels are for"?? Next video up "Ever wondered what those spinning wheels are for".

Vor 6 Monate
James Koralewski
James Koralewski

Stabilizer trim wheels on a 737. If they run away, turn off the electrical drive switches on the pedestal. P.S. Don't get your knees near them when they are spinning and, whatever you do, don't forget to stow the manual hand crank handles after manually trimming them. You'll probably bust a knee if you don't.

Vor 6 Monate
Chris Cristo
Chris Cristo

The last option sounds like no one ever thought of that issue. Couldn't manufacturers install some sort of an emergency brake on that thing so the pilots can engage it and fly the plane instead of wrestling with those wheels?

Vor 6 Monate
pmailkeey
pmailkeey

"What are those SPINNING things in the cockpit?!" They, are the wheels of doom !

Vor 6 Monate
shiraga
shiraga

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

Vor 6 Monate
Greg V
Greg V

What a great explanation. You might be able to teach me to fly, and trust me, that would be a truly epic feat. Keep videos about flight controls coming. They are simply awesome.

Vor 6 Monate
Greg V
Greg V

@Ryjelsum Well, I am halfway there.

Vor 6 Tage
Ryjelsum
Ryjelsum

He literally has a "how to land an aircraft as a passenger" video :P

Vor 6 Tage
Hason Mailhot
Hason Mailhot

Get. To. The. Point. PLEASE!

Vor 6 Monate
Eduardo Bogosian
Eduardo Bogosian

@2:17 His shirt: "This is how I roll" LMFAO

Vor 6 Monate
paul
paul

When I read the title , " what are those spinning things in the cockpit" my mind when to somethings but never the trim wheels , at first anyway. I thought of the gyroscope,, Indeed you can't see it spin but in the aircraft I have been in during warm up you can sure hear the gyro spinning up. I have seen a few different models taken apart, one for ship use and one aircraft use gyro. Big , bulky, and very cool piece of hardware. I'm only guessing that aircraft today still all have gyros even with all the back up system like sat nav, etc. still a need for a stable platform on a moving pitching yawing aircraft. How about doing a video about that piece of tech for a video? Thank you, Paul.

Vor 6 Monate
mhzprayer
mhzprayer

That was fascinating. I wish if the pilots ever had to do manual crank stabilizer trim on a flight we could know it, so we could thank them for saving our lives before we exit the plane! But probably we would never see them at landing because they would be in there resting exhausted.

Vor 6 Monate
Neil Barnett
Neil Barnett

Every time I hear people saying "planes land themselves" I think back to this sort of video and how much the pilots can do to remedy the situatoin when the machinery goes wrong. I have the same feelings about self-driving cars, great when it all works on a wide-open interstate or autobahn, rubbish in a cul-de-sac in Britain or a cycle path in Belgium...

Vor 6 Monate
James Hershberger
James Hershberger

I love your videos.. Can you post a video of your most difficult flight? 👍👍👍

Vor 6 Monate
Johnny Rondo
Johnny Rondo

Do they still give the little plastic wings to kids when they board? I never got mine, and I want them now.

Vor 6 Monate
Iuri Emanuel
Iuri Emanuel

I would be curious to see the video of the simulator. Is there a link for it?

Vor 6 Monate
John Airey
John Airey

Interesting how no-one mentions the movie flight (not from what I've seen) which shows a very bad trim situation. What you do you reckon of their solution Petter? (Apart from the drinking on duty obviously...)

Vor 6 Monate
Speedbird
Speedbird

Because in "Flight" its not a bad trim situation, its a elevator malfunction situation😉

Vor 6 Monate
John Airey
John Airey

Flown a lot, only once been asked by the crew to change seats to adjust the trim of the aircraft before takeoff. I'm honestly not that heavy though!

Vor 6 Monate
Boxersteavee
Boxersteavee

I like your videos so much, I am watching even though I know all about the trims!

Vor 6 Monate
PotatoPrime
PotatoPrime

Just reiterates further why pilots don't want people up and moving all around while during takeoff I guess, they'd have to keep constantly readjusting trim if that were the case, and they got enough things to worry about at that time already. This is such a good channel even for people that aren't pilots, that just enjoy learning like I do

Vor 6 Monate
st bell
st bell

So is the aerofoil section of the elevator upside down? In order to generate the counter force down?

Vor 7 Monate
Stephane Laframboise
Stephane Laframboise

737 MAX... How didn't you mention the elephant in the room?

Vor 7 Monate
Speedbird
Speedbird

Which elephant? This is not really about the 737 max..

Vor 7 Monate
Greg Munning
Greg Munning

Great explanation!

Vor 7 Monate
Piotr Swiatkiewicz
Piotr Swiatkiewicz

Thank you so much for your great video, Capt Mentour! Trimming the stabilizers was one of those things I could comprehend while "playing" MS Flight Sim 2000 (yeah! 20 years ago....) but I quickly knew something was probably off with the simulation. This brings me to the following question: when you say the stabilizers need to be trimmed to "take off forces the pilot needs to apply on the yoke" - do you mean that as the proper trim position is approached there is a feedback on the yoke/stick? To put it another way: can the pilot feel this proper trim position on the yoke (i.e. the yoke does not need to be pulled so much to maintain the required pitch angle) or it must be done with constant monitoring of the appropriate cockpit instruments to make sure e.g. pitch angle is stable without input on the yoke? Perhaps this boils down to the following: I am guessing the yoke is in neutral position when the aircraft is stationary on the ground. While is flight there would be forces acting on it - perhaps somehow proportional to the forces acting on control surfaces, right? So, coming back to my FS 2000 situation: I found it quite hard to trim (e.g. the B737 which I liked a lot to fly). I could feel resistance on my force feedback type joystick (no mechanical centering, everything controlled from the Flight Simulator application) when applying input on it, but trimming was reflected only on the cockpit instruments and the forward view generated by the simulation, obviously. I had no feedback on the joystick no matter the trimmer position. I have been wondering how it feels in a real aircraft ever since. Actually, I even asked one pilot here on YT (Capt TURBULENCJA from Polska ;) ) and got a bit disappointed. Turned out Capt Turbulencja primarily flies Airbus models and he said all trimming was automatic (yeah.... fly by wire, no wonder). Hope you could help me out with this! Thanks!

Vor 7 Monate
Andy McGeever
Andy McGeever

Yes the trim does affect the amount of yoke pressure required to hold the aircraft at a constant attitude. I only fly light aircraft with conventional control surfaces moved by cable and the pressure feedback is felt directly but on larger fly by wire aircraft the yoke pressure is simulated. When you take off the trim is set neutrally in 'Take Off ' position and then requires back pressure on the yoke to lift the nose once you reach 'unstick' speed. To maintain the climb you then have to maintain that back pressure on the yoke. If you were to let go, the nose would suddenly pitch downward. You then trim off that back pressure by moving the trim wheel backward. As you turn the trimwheel the amount of backpressure required reduces until you get to the point where the aircraft is in trim and you can let go of the yoke without affecting the pitch angle. When you level off and reduce the throttle you then need to trim off the forward pressure. This is one of those elements that isn't reproduced in home simulators unless you have high end controllers. Eventually it becomes instinctive to trim off the yoke pressure in flight without giving it any thought. That 'seat of the pants' feeling you have when flying for real just can't be reproduced on static simulators. The feedback you feel from the aircraft is hugely important in learning to fly well. Learning to fly on a computer is like learning to walk without having your feet on the ground.

Vor 3 Monate
gatesmw50
gatesmw50

At 8:03 your explanation just explained a lot for me !

Vor 7 Monate
Prakash Ambastha
Prakash Ambastha

Very well explained..even a layman like me understood and enjoyed it..Thank you!

Vor 7 Monate
Mentour Pilot
Mentour Pilot

Glad to hear that!!

Vor 7 Monate
Paralytic Angel
Paralytic Angel

That reminds of the lost 3 aircraft of Alaska Airlines in one year. Three times of the same failure. The haven't lubricated the THS according to the AMM. They have skipped that task every second time. Of course that Airline didn't exists anymore. So it is the best thing when you see that THS wheels are moving. Even when they have a failure and can't hold stable. At that 3 Alaska Airlines the THS were stuck. They have forced it so much that the aircraft broke in two parts. After this episode of yours everybody here should watch that Mayday episode with the flight 261.

Vor 7 Monate
Speedbird
Speedbird

@Paralytic Angel Your english is really good, I wouldnt worry about that😊😉 I`ll remember to look for it and I`ll bet it will be a giant discovery for the whole mankind😂👍🏻 Of course👍🏻Ive been to Charlottenburg, thats where the Kaiser Wilhelm Gedächtniskirche is right? We are usually there when we are checking out the weihnachtsmarkt there (usually that one and the one at Alexanderplatz). In a non-covid world we are usually 2-3 times in Berlin pr year. Im not much of a viking by the way😆I hate the cold..think I was born in the wrong country sometimes🤷🏻‍♂️

Vor 7 Monate
Paralytic Angel
Paralytic Angel

@Speedbird Haha, nice to meet ya bro. My English isn't that good, but I think I can argue whatever the topic is. Greets to Norway then, a cold but beautiful land you are living there. You Nordic Viking you :)) Like I said, maybe it is a Manufacturer thing to call it "HS" or "THS". When you got those A320's definitely you must take a look for that in the AMM.^^ And if you really see THS^^, when it must be a manufacturer thing. I hope you don't forget to check it and hopefully write it down here, so I know it too if it is so. It really were nice to know.^^ And you are that guy in the front line who is short before that giant discovery for the whole mankind.^^ 😁😁😁 Wish you much fun on Airbus machines then and I am waiting for a response ^^ 👍👍👍 And btw. Neukölln I know of course. I am from Charlottenburg ^^ You wife knows it definitely, I live 2 Km from the former TXL Airport which is now closed. :((

Vor 7 Monate
Speedbird
Speedbird

@Paralytic Angel Cool😊Wish I could type in German, but my German isnt very good Im afraid😕 Im Norwegian, so we live in Norway. Nice to "meet" someone from Berlin, I really love that City. My wife is orginally from Neukölln. For me its the opposite, I have a 737NG type rating, and have barely touched the Airbus. But we are getting a few new A320s these days, so I`ll be seeing more of that in the near future.

Vor 7 Monate
Paralytic Angel
Paralytic Angel

@Speedbird I am from Berlin and I am still here ;) I have worked on A320 family, so maybe it is just a Airbus term for that ? Just one single time I have seen a Boeing 737 for engine swap in our maintenance hall, but the other shift has done the task on it. So greetings from Berlin to you both ✋ And you are living in the US now ?

Vor 7 Monate
Speedbird
Speedbird

@Paralytic Angel Oh, interesting🙂I`ve actually never heard that before, we just use the term "horizontal stabilizer". Never seen THS in the AMM either🤔 Are you from Berlin, or did you just work there? My wife is from Berlin☺️

Vor 7 Monate
EUK007
EUK007

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! 👍

Vor 7 Monate
adam g
adam g

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

Vor 19 Tage
Bryson Fitzgerald
Bryson Fitzgerald

@Sean Thompson oh no, Sean.

Vor Monat
EUK007
EUK007

@Sean Thompson oh another dumb Flat Earthers here... 😁😂🤣

Vor Monat
Sean Thompson
Sean Thompson

Pilots know that the earth is a FLAT PLANE as they keep the aircraft level at all times apart from takeoff and landing to fly over the FLAT PLANE they dont dip the nose to fly around the illusionary Ball earth because it is a FLAT PLANE! Hence the word AEROPLANE not and AEROSPHERE the truth hidden in PLANE SITE if you can think for yourself!!!

Vor Monat

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