My instructor always told me to apply brakes before retracting the gear. I can think of a few reasons why that is important. First, you don’t want any potential debris from a fast spinning wheel to fly off and contact critical components or lines in the wheel well. Secondly, if you are taking off from a wet or slushy runway, you would not want any of that moisture or slush to be slung inside of the wheel well and become a frozen block of ice at altitude. The ice could prohibit the extension of your gear upon landing.
In one of the written wither instrument or commercial the correct answer for gear with ice and slush is to leave it out longer so that it can be blown away from the aircraft. I'd do that in addition to hitting the brakes upon retraction of the gear.
On big aircraft this is not necessary. The moment the gear retracts, 3000 PSI UP pressure gets routed by the landing gear selector valve to the wheel brakes to stop the wheels spinning. Small planes don't have this.
The amount of energy being dissipated in a split second when main gear + nosewheel all come to a dead stop from whatever crazy RPM they're carrying at vRotate just blows my mind every time I see it. Great video, subbed, thanks!
Hi, yes you are right - that energy absorbtion is incredible - especially considering the weight of the wheels...Thank you for watching , I am glad you like it ! I have a couple of new ideas on my mind for my future shots - for the cam. placement - should be interesting :-)
Well to be fair, the energy of just the wheels rotating, even at those speeds, is tiny when compared to the amount of energy that is dissipated by the brakes on landing in bringing the entire aircraft to a stop. The brakes are of course designed with that in mind and so it's not really a surprise that they have no trouble stopping a single wheel very quickly :)
@@matthowells6382 Well when you explain it as succinctly as that, it does seem quite obvious. Still impressive to watch though, those are some pretty hefty wheels/tyres. :)
For those wondering why the main wheels are automatically braked while retracting the reason has to do with Gyroscopic Procession. A Spinning disc (gyro) resist movement in a different direction. When the gear is retracted, the struts are unlocked and thus in a weak-state as they are now free to move. The spinning wheels (gyro) resist the movement, thus putting undue torque and stress on the actuating pinions, hydraulic pistons and swing arm joints thus damaging them.
No 🤣🤣🤣🤣 We call this the inflight braking Automatically the brake meeting valve releases 520 PSI of hydraulic pressure towards the multidisc carbon brake pistons that stops the wheel from spinning Why ??? : to avoid in case of : if there’s a tread loss from a tire to damage the components inside the wheel well Only 🤣🤣🤣🤣🤣🤣🤣🇩🇿🇩🇿🇩🇿🇩🇿🇩🇿🇩🇿🇩🇿🇩🇿🇩🇿
@@beaclaster You cannot stop a heavy wheel in a "second." Momentum takes a bit to completely stop... also its not enough rotation in that short amount of movement to make a difference. It has to move more than 45 degrees while still spinning to make a difference.
Next time you fly and you're sitting near the wings, notice the small bump sound just after takeoff. That's the jolt from the wheels coming to a halt. Much like the hard jolt that goes through the plane at landing when the wheels go from zero to spinning instantly. If you've ever flown on an A380, you REALLY feel a jolt because of so many MLG wheels.
After pondering on how in the hell that wheels braking system can do that it dawned on me that the system is designed to stop the entire plane, that wheels mass is nothing compared to the whole jet 😳
Excellent video. I had a desire to see how the landing gear retracts and goes inside the aircraft's belly but never expected someone would be recording it and sharing it. Thank you.
Because their is less momentum after take off,because of very less mass over the tyre.Its hard to stop a car in that speed but the story is different here..
Maybe you could wait for his promised version 2, where he will leave the gear bay well lights on for an even better view? Or is it better to post both? If you do use this version, please include the landing right after it!!! czcams.com/video/9w6HOT35JMA/video.html
There were two man from Punjab,India Illigally travelled to UK by hiding inside landing gear One died One survived Still living in UK Google it Amazing story
Never leave the light on in the wheel well. You'll most likely forget about it, then the next time you go to drive your plane the battery will be dead and all you'll get is the 'click click click' when you try to start it.
Thank you CZcams algorithm for shoving this video in my face every day. I have finally watched landing gears from inside a plane, and my life is forever changed.
@@filmingflying8662 so if it's not on RTO mode like if somehow the pilots just rhyming the checklist and missed that switch, then the landing gear will not stop braking?
@@cupofjoen I assume that it's a mechanical thing that engages the brakes when the gears retract, there aren't any switches or computer controlling it. Why would the pilots ever need to disable it? But I'm just guessing.
I remember there was a man who hid in that area to flee from his country. Can't imagine how terrifying that would've been. If I remember correctly, he died, and when the gear was lowered in London for landing, his body fell into someone's garden. Terrifying.
Armando Socarras Ramirez. In 1969, he hitched a ride from Cuba to Spain in the landing gear compartment of an Iberia DC-8. Pinned between the wheel and the wheel-well a few millimeters from being crushed to death. Held on when the pilot extended and retracted the gear immediately after takeoff because the wheel that crushed him hadn't locked properly the first time. Survived for 8 hours at -40ºC with no pressurization (Doctors never figured out how). Didn't fall out as the gear were extended for landing, despite being unconscious by that point. Discovered by a security guard after the plane had already taxied to the ramp. Ridiculously lucky guy.
La válvula que se cierra o abre para subir o bajar el tren de aterrizaje, lleva adosada otra válvula llamada "inflight brakes" (frenos en vuelo) que se encarga de enviar presión hidráulica a los frenos de los trenes principales derecho e izquierdo para así frenar el giro de las ruedas. Esto se hace y se necesita para anular su efecto giroscópico pues influye sobre el control de la aeronave justo en el despegue. Las ruedas del tren de proa, auxiliar o "de nariz" se frena mecánicamente, generalmente por unas "zapatas" elásticas en que rozan los neumáticos, es así por no poseer un sistema de frenos hidráulico allí. No hay ninguna duda que la aeronave es un Boeing 737, pues no llevan una compuerta que cubra el tren de aterrizaje principal. La rueda exterior tiene una "taza" que cubre la llanta metálica una vez retraído el tren principal, para hacerla así más aerodinámica en vuelo y que no ofrezca tanto "drag" o resistencia al avance por turbulencias aéreas. czcams.com/video/nZ9YlC5Tfm0/video.html
Definitely a 737 , no gear doors, great explanation. I have seen a block of plastic on the front of a 737 I think to stop. You can here it thump when the gear goes up. A low tech solution to a real problem.
Animagraffs made a great video about airliners. With a model and dissecting that model. There you learn, among other things, which areas are pressurized and which aren't.
Airliners are the most amassing and underappreciated machines! The 737 has no doors covering the wheels, maybe a weight saving design? I recently flew to S Africa on a A350, what a safe and comfortable trip it was.
I even didn't know that the tires break/stop abruptly. Never thought of that? 🤨🤔 But, of course! that makes absolutely sense! 🫣 Because they cannot be put in the "garage" when they are still spinning. That fact and the footage blows my mind. 🤯
Interessante como dá para perceber exatamente o momento no qual o avião começa a deixar o solo, e sem o peso, as rodas se esticam até o final de curso. Também sempre fiquei imaginando se as rodas entravam girando no compartimento do trem de pouso, quão velozes eram estes giros e paravam de girar ao encostar em algo. 🤣 Agora descobri que são imobilizadas antes. ( e os motivos para tal ).
Geraldo Gomes, tem um sistema automático que aplica o freio nas rodas assim que o tem começa a recolher, pois houveram no passado estouros dos pneus dentro do compartimento do trem de pouso fazendo com que os pedaços de borracha em alta velocidade danificassem seriamente muitos componentes hidráulicos ali instalados.
That's really cool. I never thought that the wheels would still be spinning after rotation and brakes would have to be applied before they're retracted. I should have known, in retrospect. I also couldn't help but notice that the tires seem to be slightly underinflated, presumably to provide more surface area and thus better grip on the runway. They do a similar thing with top speed dragsters where they inflate the tires to some ridiculously low pressure like 4psi. It's quite a spectacle to watch slow motion footage of a drag racer taking off from the starting line. The tires are so underinflated they almost wrap around themselves as they alternately grip and slip on the pavement. This also makes me wonder what sort of angular velocity (technical term for how fast it's rolling) those wheels would get up to, and the G loads the tires experience as a result. Which, if I could find the size of the landing gear tires on a 737 and how fast a 737 is traveling on the runway when it rotates (takes off). Then I can just figure out how fast they're turning and work out the G load from that. Although I'd have to also find out how much the tires weigh if I want to figure out how much weight that G load is putting on the outside rim. Ie if the tire weighs 200kg and the G load is 5Gs I know the weight experienced on the edge of the tire would be 5 x 200kg or 1000kg. I hope that all made sense. I know it's easy to convince yourself you're bad at math and to take one look at something with math and instantly say "oh I could never understand that" before you even try. I used to do it allll the time. But I promise you if you take it slow and read through it, there is no math in what I've said that's more advanced than what a 5th grader would learn. So however many years it's been, you should be able to make heads or tails of it. And if not, that's not a big deal. Most people don't use math enough in day to day life to remember what they were taught like 10, 20 years ago.
B737 rides on 27x7.75 R15 tires. As Mr Callahan said, they are pumped to 200+ psi. Nitrogen is typically used to reduce pressure differences with cold/hot cycles. Side note: The B-17 bomber (the ‘Flying Fortress’ of WWII fame) rode on 55x19-23 tires.
I didn't know that. But it makes sense . . . delay the MLG brakes by a second or two over any front braking if it existed and you'd have an aircraft bumping it's chin on the tarmac. :)
Notice the distance from the wheel base to the plane increases at the moment of lift off, and the final distance must be just right for them to make it into the bay.
Hi R2D2, thanks for watching ! I am glad you liked. Actually - it has been my point - to share unusual views :-) Many thanks and stay tuned - there will be some more coming soon :-)
I was told by a Michelin rep that an aircraft is more likely to fail right at takeoff vs landing because it’s already hot from taxiing and then spinning up to high speed. Landing tires are cold soaked and less likely to fail at touchdown. It looked like a little bit of smoke was coming from the tires. Was that heat building up?
@@nitinaravindraj6753 My understanding is that the 737 sits so low to the ground if the doors were to open on the ground they would scrape, which would be problematic if the gear were gravity-dropped, as well as opening the doors on the ground for maintenance access to the wheel well. There are three possible solutions to this, each with pros and cons: Bi-fold doors that don't hang down low enough - 727 did this, heavier and more complicated but no issues being open on the ground and no performance drawbacks - makes sense for the 727 as at the time it was intended to be the longer-range aircraft. Normal doors that likely would hit the ground, just accept that risk - from what I can tell this is what the DC-9/MD-80 series does. Looks to me from gear swing videos that they'd hang down further than the gear once the strut is compressed. This is lighter and simpler than the bi-fold doors and doesn't compromise performance, but if you have to gravity-drop the gear I assume new doors will be needed. Simply omit the doors. This is what the 737 does, even to this day. Lighter and simpler than bi-fold (or any) doors, no risk of hitting the ground (or any other damage or malfunction, can't break what isn't there) but at the cost of some performance. Keep in mind that the 737 was originally designed as a small, short-haul aircraft, basically a regional jet, so the performance penalties were seen as acceptable. It's since grown into a high-capacity long-range mainliner, but the drag penalty of the exposed tires isn't enough to justify a redesign even in this new role.
NICE! I can see your subscriber's going from 5k to 500k in no time. Never knew I wanted to see a perspective of landing gear being retrieved, until I saw it lol.
From the thumbnail I totally thought this was the POV of a player being forced into the animatronics of one of the Five Nights at Freddie's characters.
Nice Vid! Thanks. I worked on UH-60s for 12 years. LOTS of compus row trips as a sandbag. Looking over the side to stop on the mark then off to hover we go. I did that so much I always think what? For a nanosecond when the wheels fold up on other ACFT.
Wow! Look how steadily he holds the cam. Good job ;-)
Its not a mam holding the phone
@@besimjonuzi It is
@@unlucky.guitars nah
@@besimjonuzi ;-}
@@besimjonuzi It was someone with a phone filming it. I can prove it because I had to lend my phone to the dude because his phone's battery died.
My instructor always told me to apply brakes before retracting the gear. I can think of a few reasons why that is important. First, you don’t want any potential debris from a fast spinning wheel to fly off and contact critical components or lines in the wheel well. Secondly, if you are taking off from a wet or slushy runway, you would not want any of that moisture or slush to be slung inside of the wheel well and become a frozen block of ice at altitude. The ice could prohibit the extension of your gear upon landing.
This plane this it automatically, but that’s a good habit tho.
In one of the written wither instrument or commercial the correct answer for gear with ice and slush is to leave it out longer so that it can be blown away from the aircraft. I'd do that in addition to hitting the brakes upon retraction of the gear.
Can't that braking be auto before retracting? Why should it be dependent on Pilot's memory / plan? Or is this different for different plane types?
@@shreeveda each aircraft is different. Typically airlines are automatic, but small piston planes are typically not.
On big aircraft this is not necessary. The moment the gear retracts, 3000 PSI UP pressure gets routed by the landing gear selector valve to the wheel brakes to stop the wheels spinning. Small planes don't have this.
The amount of energy being dissipated in a split second when main gear + nosewheel all come to a dead stop from whatever crazy RPM they're carrying at vRotate just blows my mind every time I see it. Great video, subbed, thanks!
Hi, yes you are right - that energy absorbtion is incredible - especially considering the weight of the wheels...Thank you for watching , I am glad you like it ! I have a couple of new ideas on my mind for my future shots - for the cam. placement - should be interesting :-)
@@pilotsview1682 I hit the bell, looking forward to seeing more footage. Cheers from SYD :)
@@pilotsview1682 Idea for cam-placement: Use some ducttape and fix it on the spinning cone of the turbine :)
Well to be fair, the energy of just the wheels rotating, even at those speeds, is tiny when compared to the amount of energy that is dissipated by the brakes on landing in bringing the entire aircraft to a stop. The brakes are of course designed with that in mind and so it's not really a surprise that they have no trouble stopping a single wheel very quickly :)
@@matthowells6382 Well when you explain it as succinctly as that, it does seem quite obvious.
Still impressive to watch though, those are some pretty hefty wheels/tyres. :)
the CZcams algorithm finally recommends me a good and interesting video
ya no dumb furry kids
U r RIGHT
which one?
jk
You must not use CZcams very much then.
FAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACTS
0:42 “thank you for choosing space airlines! We are now landing at the sun.”
For those wondering why the main wheels are automatically braked while retracting the reason has to do with Gyroscopic Procession. A Spinning disc (gyro) resist movement in a different direction. When the gear is retracted, the struts are unlocked and thus in a weak-state as they are now free to move. The spinning wheels (gyro) resist the movement, thus putting undue torque and stress on the actuating pinions, hydraulic pistons and swing arm joints thus damaging them.
No 🤣🤣🤣🤣
We call this the inflight braking
Automatically the brake meeting valve releases 520 PSI of hydraulic pressure towards the multidisc carbon brake pistons that stops the wheel from spinning
Why ??? : to avoid in case of : if there’s a tread loss from a tire to damage the components inside the wheel well
Only
🤣🤣🤣🤣🤣🤣🤣🇩🇿🇩🇿🇩🇿🇩🇿🇩🇿🇩🇿🇩🇿🇩🇿🇩🇿
Where do you think this kinetic energy goes, magic?
It has to be converted to heat by the brakes
@@badiskebsisi6541 Do your research before acting like an idiot, it will be less painful...
it rotates a second before it brakes tho, if that's the reason the sensor should detect it in a fraction of a second not a full second after
@@beaclaster You cannot stop a heavy wheel in a "second." Momentum takes a bit to completely stop... also its not enough rotation in that short amount of movement to make a difference. It has to move more than 45 degrees while still spinning to make a difference.
Crazy how the pilot can fly and record inside the gear well at the same time!! I see why this channel’s called pilot’s view
What makes it even harder is that he made sure to steadily hold the camera so he could bring us a good footage
@@Rojeanne r/wooosh.
Ofcourse he is a pro
@@Rojeanne If only it were a joke...
@@Rojeanne You should look up the word "humour" in the dictionary. It might get you laid one day.
Next time you fly and you're sitting near the wings, notice the small bump sound just after takeoff. That's the jolt from the wheels coming to a halt. Much like the hard jolt that goes through the plane at landing when the wheels go from zero to spinning instantly. If you've ever flown on an A380, you REALLY feel a jolt because of so many MLG wheels.
I’ve flown on an A380 multiple times. I have never felt a jolt, it’s always been smooth as butter.
What did one wheel say to the other wheel? I'm dizzy!
I always have that small bump when I run over someone. People need to stay off the sidewalk.
@@hvirus1 Yes same here. The 380 is one of the quietest I have flown in
Error 404: Missing Acronym: "MLG"
After pondering on how in the hell that wheels braking system can do that it dawned on me that the system is designed to stop the entire plane, that wheels mass is nothing compared to the whole jet 😳
Well, you wouldn't expect the brakes on your car to stop just the wheels and not the car, would you?!
@@Aeronaut1975 If the car was flying I would.
@@victorlaurent2978 😂
look up boeing 747 rejected takeoff test
Excellent video. I had a desire to see how the landing gear retracts and goes inside the aircraft's belly but never expected someone would be recording it and sharing it. Thank you.
Props to the cameraman for holding the camera in that tight space, very well done!
Bro it's not cameraman he has attach it to the plane
Not to mention the cameraman seems to either be doing a very good job hanging on or he activated his coveted cameraman powers.
@@JEE-ff5pp no, really? I had no idea.
@@isaacparadis7951 why is sarcasm so hard to understand for some
@@VettigeHandoek I couldn’t tell ya 😂
Props to the cameraman for staying in that cramped space the whole flight
Lol you failed to gain subs or even likes lol
@@bowens9763 pretty sure he got likes, unless you can't read
@@thomasmarcus3503 lol in 3 hours 8 likes isn't good, nor does it even benefit anyone lol
@@bowens9763 you gotta move the goalpost. I still stand corrected.
guys he is trying to be sarcastic, not dumb
Often wondered if the undercarriage stopped spinning before it finished retracting. Thanks for the lesson and a great video AAA+++
Thank you very much for watching !!! I am glad you liked it :-)
Me too!
well, you can apply the brakes from the cabin with the tips of your feet, it takes just a second, so why not do it?
Wow, love how quickly those wheels stop. Amazing view.
Because their is less momentum after take off,because of very less mass over the tyre.Its hard to stop a car in that speed but the story is different here..
alot of pilots are taught to apply wheel brakes just after takeoff idk why tho, maybe someone can explain.@@jajajajaja420
Great video,I Pray who ever sees this be successful in life
I'd love to see a nose gear camera! The noise the nose gear makes when retracted in a 737 is pretty wild.
A nice B737 landing gear up scene thanks for the view.
Glad you liked it :-) Thank you !
Stunning capture! May I feature this video in one of my next uploads? Of course with a link to your original video. Cheers!
Hi, thank you ! I am glad you like it. No problem - of course you may upload this video :-)
Maybe you could wait for his promised version 2, where he will leave the gear bay well lights on for an even better view? Or is it better to post both?
If you do use this version, please include the landing right after it!!!
czcams.com/video/9w6HOT35JMA/video.html
Yay!
And also share 10% of the monetisation😛
oh yeah, 3 Minutes of Aviation one of my fave channels. quality aviation videos.
Thank you Mr. Cameraman for showing me this wonderful sight 👍
Lol epic fail you gained nothing lol
@@bowens9763 ☝️🤓 "epic fail"
@@bowens9763 Lol epic fail you gained nothing lol
@@dawman3120 Repeating doesn't do anything lol.
@@dawman3120 12 months ago lol alt account spotted
Hard to imagine people in Afghanistan clinged to the wheels to escape.My prayers with those who lost their life
There were two man from Punjab,India
Illigally travelled to UK by hiding inside landing gear
One died
One survived
Still living in UK
Google it
Amazing story
Nice video! If you left the wheel well light on during retraction, the interior would still be visible after gear is fully retracted.
Thank you ! And great idea ! next time I am going to leave the light on. This was my first attempt - so slowly slowly to perfection 🙂
czcams.com/video/nZ9YlC5Tfm0/video.html
Never leave the light on in the wheel well. You'll most likely forget about it, then the next time you go to drive your plane the battery will be dead and all you'll get is the 'click click click' when you try to start it.
@@applejacks971 Just get out and push!
@@applejacks971 you fly a plane not drive
You gotta truly be at rock bottom to pick this as your stow away spot.
There is barely enough room for the gear. BYOS......Bring your own sponge..
Yah, I shuddered just thinking how these retracting gear could turn the stow away's body into minced meat in just few seconds.
Unfortunately many in Afghanistan did this when the US pulled out and the Taliban stormed the airport 😥
@@BerserkerSloth nobody asked them to do it
This video is like waking up in the morning and realizing it's still dark out
One of those videos that makes you understand why CZcams is there in the first place. I loved every TV-unfriendly second!
Thank you CZcams algorithm for shoving this video in my face every day. I have finally watched landing gears from inside a plane, and my life is forever changed.
Landing GEAR, not gears
Ah, good ol' 737 main landing gear
No. It had doors so not 737.
@@Gromitdog1 read the description you dunce
@@Gromitdog1 It does not that’s definitely a 737
@@Gromitdog1 100% a 737
@@cameron-w I was wrong, thought the 2nd wheel was a door, also thought the wheels stopped on a rubbing block on the 737.
So brakes are automatically initiated when the gear is retracted? Never knew that but makes sense.
Yes you really don’t want them spinning in the wheel well.
It’s on the RTO section of the autobrake selector. Rejected Takeoff mode.
@@fgrau7376 yes or it will destroy the whole gear bay
@@filmingflying8662 so if it's not on RTO mode like if somehow the pilots just rhyming the checklist and missed that switch, then the landing gear will not stop braking?
@@cupofjoen I assume that it's a mechanical thing that engages the brakes when the gears retract, there aren't any switches or computer controlling it. Why would the pilots ever need to disable it? But I'm just guessing.
The retraction brake is the coolest thing ever
Come on... ever?
If a retraction brake is the coolest thing ever to you, you need to get out more.
Well of the landing gear
There is no retraction brake. Brakes are brakes.
Remember guys, the cameraman never dies
cameraman NEVER DIES!!
That was a great shot. Great video.
Thank you for watching!!! I am glad you liked it :) There will be some more coming soon, so please stay tuned :-)
Oh he sit their to shoot it..... bravo awesome man, next please do ship anchor
Sure ! no problem :-)...actually - great idea :-))
I remember there was a man who hid in that area to flee from his country. Can't imagine how terrifying that would've been. If I remember correctly, he died, and when the gear was lowered in London for landing, his body fell into someone's garden. Terrifying.
A sikh indian man (Khalistan Movement)
@@finatic8055 Actually, I think it was a South African man.
@@chrzrd. nope, there were two of them
Nobody forced him to do it lol
Armando Socarras Ramirez. In 1969, he hitched a ride from Cuba to Spain in the landing gear compartment of an Iberia DC-8. Pinned between the wheel and the wheel-well a few millimeters from being crushed to death. Held on when the pilot extended and retracted the gear immediately after takeoff because the wheel that crushed him hadn't locked properly the first time. Survived for 8 hours at -40ºC with no pressurization (Doctors never figured out how). Didn't fall out as the gear were extended for landing, despite being unconscious by that point. Discovered by a security guard after the plane had already taxied to the ramp. Ridiculously lucky guy.
Hats off to the photographer. He stuck himself with that for this video
Thank you ! I am glad you enjoyed watching it :-)
WoW New things to learn always makes me happy.
La válvula que se cierra o abre para subir o bajar el tren de aterrizaje, lleva adosada otra válvula llamada "inflight brakes" (frenos en vuelo) que se encarga de enviar presión hidráulica a los frenos de los trenes principales derecho e izquierdo para así frenar el giro de las ruedas. Esto se hace y se necesita para anular su efecto giroscópico pues influye sobre el control de la aeronave justo en el despegue.
Las ruedas del tren de proa, auxiliar o "de nariz" se frena mecánicamente, generalmente por unas "zapatas" elásticas en que rozan los neumáticos, es así por no poseer un sistema de frenos hidráulico allí.
No hay ninguna duda que la aeronave es un Boeing 737, pues no llevan una compuerta que cubra el tren de aterrizaje principal. La rueda exterior tiene una "taza" que cubre la llanta metálica una vez retraído el tren principal, para hacerla así más aerodinámica en vuelo y que no ofrezca tanto "drag" o resistencia al avance por turbulencias aéreas.
czcams.com/video/nZ9YlC5Tfm0/video.html
Excelente explicación, justamente buscaba información técnica sobre el freno del tren cuando es retraído. Muchas gracias! 🙏🏻💪🏻
Definitely a 737 , no gear doors, great explanation. I have seen a block of plastic on the front of a 737 I think to stop. You can here it thump when the gear goes up. A low tech solution to a real problem.
Amazing that they don't worry about the seal not being completely air proof
The landing gear bay usually isn't pressurized, there are airtight bulkheads around the landing gear bay to prevent issues.
Animagraffs made a great video about airliners. With a model and dissecting that model. There you learn, among other things, which areas are pressurized and which aren't.
I bet those two mice are REAL DIZZY
Airliners are the most amassing and underappreciated machines!
The 737 has no doors covering the wheels, maybe a weight saving design?
I recently flew to S Africa on a A350, what a safe and comfortable trip it was.
Correct. The 737 is also the only commercial aircraft with hubcaps...although only 1 per wheel.
It's 3am, perfect time to watch this video rather than going to sleep
*Props to the Cameraman who went inside the landing chamber and showed us how wheels land planes*
Ur mom went in there
😂😂😂😂😂😂
It’s called the wheel well.
Great work by the Camera Man 🥹
thank you !!! and thank you for watching!!! stay tuned - there will be some more coming soon..:-)
I still find it impressive that Arnold jumped from this in Commando. Seems so hard to do, to untrained guy like myself.
Similar scene in 5th element is funnier.
The content that explains what I've been wondering about for years 😆
I even didn't know that the tires break/stop abruptly. Never thought of that? 🤨🤔
But, of course! that makes absolutely sense! 🫣 Because they cannot be put in the "garage" when they are still spinning. That fact and the footage blows my mind. 🤯
Pov: you are escaping from latin america
Why Latin America! More like escaping Europe! (historically accurate) 🙂
0:10 well that escalated quickly…
no pun intended
Thanks to the person for stowing away and filming this video.
Something you don`t see every day. Cool!
Interessante como dá para perceber exatamente o momento
no qual o avião começa a deixar o solo, e sem o peso, as
rodas se esticam até o final de curso. Também sempre fiquei
imaginando se as rodas entravam girando no compartimento
do trem de pouso, quão velozes eram estes giros e paravam
de girar ao encostar em algo. 🤣
Agora descobri que são imobilizadas antes. ( e os motivos para tal ).
Geraldo Gomes, tem um sistema automático que aplica o freio nas rodas assim que o tem começa a recolher, pois houveram no passado estouros dos pneus dentro do compartimento do trem de pouso fazendo com que os pedaços de borracha em alta velocidade danificassem seriamente muitos componentes hidráulicos ali instalados.
That's really cool. I never thought that the wheels would still be spinning after rotation and brakes would have to be applied before they're retracted. I should have known, in retrospect. I also couldn't help but notice that the tires seem to be slightly underinflated, presumably to provide more surface area and thus better grip on the runway. They do a similar thing with top speed dragsters where they inflate the tires to some ridiculously low pressure like 4psi. It's quite a spectacle to watch slow motion footage of a drag racer taking off from the starting line. The tires are so underinflated they almost wrap around themselves as they alternately grip and slip on the pavement.
This also makes me wonder what sort of angular velocity (technical term for how fast it's rolling) those wheels would get up to, and the G loads the tires experience as a result. Which, if I could find the size of the landing gear tires on a 737 and how fast a 737 is traveling on the runway when it rotates (takes off). Then I can just figure out how fast they're turning and work out the G load from that. Although I'd have to also find out how much the tires weigh if I want to figure out how much weight that G load is putting on the outside rim. Ie if the tire weighs 200kg and the G load is 5Gs I know the weight experienced on the edge of the tire would be 5 x 200kg or 1000kg. I hope that all made sense.
I know it's easy to convince yourself you're bad at math and to take one look at something with math and instantly say "oh I could never understand that" before you even try. I used to do it allll the time. But I promise you if you take it slow and read through it, there is no math in what I've said that's more advanced than what a 5th grader would learn. So however many years it's been, you should be able to make heads or tails of it. And if not, that's not a big deal. Most people don't use math enough in day to day life to remember what they were taught like 10, 20 years ago.
B737 rides on 27x7.75 R15 tires.
As Mr Callahan said, they are pumped to 200+ psi. Nitrogen is typically used to reduce pressure differences with cold/hot cycles.
Side note:
The B-17 bomber (the ‘Flying Fortress’ of WWII fame) rode on 55x19-23 tires.
@@robertcallahan100okay
Btw what's the average Vr speed for a plane like this *if lets say the Plane is maxed out and full and completely backed*
@@seantaggart7382 A quick search showed 158kts.
@@ernestgalvan9037no, it’s because DRY nitrogen doesn’t have WATER in it, that would FREEZE at altitude
@@justing42nitrogen is used to reduce pressure differences in hot/cold cycles. It's well known and nowhere near exclusive to Aviation
The nose gear is different. They spin in the wheel well and is slowed down to stop by a brush. Nose wheels don't have brakes.
exactly ! you are right :-) ...(I share a little secret with you - the nose gear bay is my next camera spot)....:-)) Thank you for watching !!
I didn't know that. But it makes sense . . . delay the MLG brakes by a second or two over any front braking if it existed and you'd have an aircraft bumping it's chin on the tarmac. :)
Not a brush
We call them : braking snubbers
🤣🤣🤣🇩🇿🇩🇿🇩🇿🇩🇿🇩🇿I replaced them many times during C checks
Excellent shot ! 👍
The pilot did a great job filming this.
thanks for sharing! that's interesting 😊
Thank you for watching :-)...I am glad you liked it. If you stay tuned - I promise there is more coming soon :-)
It's amazing that the pilot can fly a plan from its wheel well
Props to the camera man for staying in the landing gear bay to get this amazing footage
Landing gear is plane’s unsung hero
The thumbnail scared the hell out of me for a second, haha.
respect the camera man for holding the camera that steady
So THAT is how stowaways get squished! I always wanted to know how that happens 😃
Then they fall out after the wheels detract
imagine when he forgot to press the record button
:-))) OH NOOOO ...:-))
Notice the distance from the wheel base to the plane increases at the moment of lift off, and the final distance must be just right for them to make it into the bay.
Thats was cool. I always understood how it worked but never saw it like that. Good job. Thx for sharing. 👍👊
Hi R2D2, thanks for watching ! I am glad you liked. Actually - it has been my point - to share unusual views :-) Many thanks and stay tuned - there will be some more coming soon :-)
from 0:04 to 0:38 from 0 speed to take off (V1) wow!
@@colinsouthern thanks
I was told by a Michelin rep that an aircraft is more likely to fail right at takeoff vs landing because it’s already hot from taxiing and then spinning up to high speed. Landing tires are cold soaked and less likely to fail at touchdown.
It looked like a little bit of smoke was coming from the tires. Was that heat building up?
You can still kinda see daylight
Because Boeing omitted the wheel well door, they just use the wheel to plug the hole.
@@ScaredPilot That's because there is no space for accommodating gear doors. It's not like they omitted it.
@@nitinaravindraj6753 thats true, and while it isnt an airtight seal, there are seals around the wheel well
@@nitinaravindraj6753 My understanding is that the 737 sits so low to the ground if the doors were to open on the ground they would scrape, which would be problematic if the gear were gravity-dropped, as well as opening the doors on the ground for maintenance access to the wheel well. There are three possible solutions to this, each with pros and cons:
Bi-fold doors that don't hang down low enough - 727 did this, heavier and more complicated but no issues being open on the ground and no performance drawbacks - makes sense for the 727 as at the time it was intended to be the longer-range aircraft.
Normal doors that likely would hit the ground, just accept that risk - from what I can tell this is what the DC-9/MD-80 series does. Looks to me from gear swing videos that they'd hang down further than the gear once the strut is compressed. This is lighter and simpler than the bi-fold doors and doesn't compromise performance, but if you have to gravity-drop the gear I assume new doors will be needed.
Simply omit the doors. This is what the 737 does, even to this day. Lighter and simpler than bi-fold (or any) doors, no risk of hitting the ground (or any other damage or malfunction, can't break what isn't there) but at the cost of some performance. Keep in mind that the 737 was originally designed as a small, short-haul aircraft, basically a regional jet, so the performance penalties were seen as acceptable. It's since grown into a high-capacity long-range mainliner, but the drag penalty of the exposed tires isn't enough to justify a redesign even in this new role.
@@qrygamer You're right
It just never gets old ...
For anyone who wants to know the camera man it’s woody, he filmed this when he was also filming toy story 2
Is no one going to comment on how the captain nailed holding that centerline??
Could have been the First Officer. Better to just say PF or Pilot Flying, because it could be either one of them..
Props to the camera man for surviving high speeds and low oxygen levels
The speed is the same for everyone in the plane, so props to the pilot and copilot too, I guess?
Which makes me wonder WHERE DID THIS CAMERA COME FROM?
did they just apply a camera at the gate And say FOR THE VIEWS
That’s a 737 bc no gear cover
And because it says it in the video description too.
Before I"m curious. Now I know. Thanks!
thank you for making this i definitely needed to watch this
no problem, thank you for watching :-) I am glad you liked it.
so easily to recconise from ground
what?
@@Ben123 when its flying over its so easy to reconisge the 737 with the gear
Migrant simulator
Tips for future stow aways. Stand top centre, dress warmly, clip on, bring lox backpack and see what happens
Now that's damn cool! I didn't know they brake before taking up the landing gear.
I'm more impressed about the wheels stop spinning so quickly that's crazy to see
NICE! I can see your subscriber's going from 5k to 500k in no time.
Never knew I wanted to see a perspective of landing gear being retrieved, until I saw it lol.
Thanks man :-) I know the numbers are getting crazy every day...and I can not stop it :-)))
Clever. Well done. Thanks.
So glad I got to see this
Good job, cameraman!
This is the view I have every time I travel by air!
Its so amazing to watch this.
HOTDOG!!! Remember when Arnold hung off the landing gear before jumping into the water in “Commando”?
Now I can say that I've seen landing gear in operation, and thank you for that!🇺🇦🇺🇸🤜
🤮🇺🇦🤮🇺🇲🤮
Bruh why do people have to make everything political
From the thumbnail I totally thought this was the POV of a player being forced into the animatronics of one of the Five Nights at Freddie's characters.
Great video. ☺️
Edit: I just subscribed to ur CZcams channel.
Hello and thank you for watching and subscribing!!! Stay tuned and there will be some more of interesting footage coming up soon...-)
The spinning wheels stopped before going inside , Wonderful technology
Very entertaining and fun to watch. Thanks for posting this.
I thought this was a clip of inside an animatronic for a sec 😂 Nice video still
The thumbnail looked like the eyes of bumblebee from inside XD.
Very nice video!
Thank you for watching, I am glad you like it :-)
Absolutely amazing! I love it❤
Nice Vid! Thanks. I worked on UH-60s for 12 years. LOTS of compus row trips as a sandbag. Looking over the side to stop on the mark then off to hover we go. I did that so much I always think what? For a nanosecond when the wheels fold up on other ACFT.
Really very very heart touching thankyou so much for the best vedio
Props to the cameraman!
thank you :-)
You can even see the beacon light flashing, this is really cool
when I saw the preview, I thought it was the inside view of Darth Vader's helmet. :)