Do PLANES have ANTI-SKID??? How to PREVENT SKIDDING? Explained by CAPTAIN JOE
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- Опубликовано: 21 сен 2024
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Dear friends and followers, welcome back to my channel!
To be able to fly, an airplane has to accelerate to high speeds, in order to generate the necessary lift via its wings. This puts huge amounts of kinetic energy in the whole system. Now while being airborne, speed reduction is achieved solely by aerodynamic drag. Once the tires make contact with the runway, other devices such as thrust reversers and brakes mounted on the wheels, help decelerating the aircraft. To put the huge amounts of energy in
perspective, imagine my 747-8 Freighter with an almost maxed out landing weight of 340t moving at around 155 knots or approximately 290 kph at the moment of touchdown. That’s over 1.1 billion Joule of energy within this moving system! Hard to imagine? That’s the amount of kinetic energy an average car has if it would be travelling at around 4300 kph. Well, good luck handling that one! But back to topic, this energy has then to be converted to
achieve a speed reduction. The brakes are doing that in form of thermal energy simply known as heat. Modern brakes are packages containing multiple disc brakes made out of carbon fiber. They are mounted at the bottom of the main landing gear suspension. Every wheel has its own set of brakes. Some aircrafts have additional nose wheel braking. To
activate the breaks, the pilot pushes the rudder pedals with his toes resulting in this tilt movement. The pilot’s input is then transmitted to hydraulic pumps, powering the brakes. The harder you push, the harder you’ll brake. The pedals themselves can tilt independently, allowing the so-called differential braking, which enables better
steering and maneuvering. The whole process of braking after the touchdown can also be done fully automatic with no initial brake input by the pilot, but more about that in a future video. Let´s have a closer look on the wheel behavior while braking. The brake discs are separated by so called stator plates. While braking the whole assembly is hydraulically compressed, causing friction between the discs and the stators, resulting in a reduction of the wheels rotational speed. In theory, to minimize the braking distance, brake pressure is constantly increased while in return, the wheel speed decreases. In reality it doesn’t quite work like that. Wheel braking in general works in a way that incorporates slip in our
movement. 10% slip for example means that while the airplane covers 10 meters, the wheels only roll off a distance of 9 meters. This result is braking action. When the brake pressure reaches its maximum the slip reaches 100%, causing the wheels to lock. The locked wheels don’t slip anymore, they start skidding. Because the tire isn’t spinning, braking is
purely achieved by sliding friction between the runway surface and the rubber tire. This condition can lead to serious tire blow-outs which can then on the other hand lead to structural damage by hurled tire debris, sparks resulting in a possible fire or even a loss of control. To prevent this from happening, engineers came up with a system called the anti- skid system. It basically works just like your car´s ABS, the Antilock Braking System ...
Thank you very much for your time! I hope you enjoy this video!
Wishing you all the best!
Your "Captain" Joe
Big thank you to all other youtubers who provided me with the video material to create this video. Your content is highly appreciated. Please follow their channels:
@GermanCarFan
@Cargospotter
@TheAvGeeks
@Boeing
@The 727 Legacy Project
@ERAU SpecialVFR
@allegroracing
Intro Song:
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Outro Song:
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JOE can you do a video about all tests/exams you need to take during you career after flightschool? That would be realy interesting!!
Even before! What are the requirements...
Yes that would be a good idea
Frr
Yes I agree
Duh he should do it.
BREAKING NEWS:Captain Joe to replace Lewis Hamilton at Mercedes F1. Can he win the title?
Hey if he's in the Mercedes he probably could
Mercedes is very likely to stop racing this or next year.
Valterri, it James. Let Joe through
KRATO KAT 😂😂😂😂
I feel like Toto and Joe would get a long p well tbh
I read this as “Do planes have abs?”
SSK123 ye sure they do lol
only large aircraft
Same here😂
3:00
Right hand side Captain Joe: speaking
Left hand side Captain Joe: am I a joke to you
7:04 fun fact: the aircraft involved ( C-GITS) was able to be repaired, and returned in service
"They came up with the Anti-Skid-System or..."
THE ASS?!
"protection"
Why it's not called that in cars.
Makes sense. The Antonov An-225 is very thicc.
@@nolongerusing7430 dummy thicc
@@stever4899
Kuz cars aint thicc
Well, except for trucks
Lmaoo
Aircraft on an aircraft carrier switch the Anti-Skid off during carrier operations. There is a few reasons for this: The Carrier is coated in a no-slip material, and taxi is slow enough that skidding is a no-factor. Takeoffs via catapult and landings via trap are not dependent on braking action at all. Lastly, if the anti-skid system fails, in can take the normal braking system with it, leading to an aircraft rolling over the deck, potentially bumping into something or disappearing over the edge into the sea.
That last point is the reason why on an aircraft carrier, pilots arm the ejection seat immediately when the tie-down chains are removed from the aircraft, instead of just prior to taking the active runway for take-off, which is typical in land-based operations.
100% correct, in addition to probably the most famous of carrier operation differences vs. most land based airports, landing on pretty high throttle incase your hook bounces over all the catch cables, so you can immediately take off again, and come around for another pass. {It's required to slowly shake your head as you get hooked on your second pass..jk :D ) I got to tour the USS Nimitiz when it was in Bremerton Washington when I was a kid, It blew my mind the shear scale after having also been on the USS Missouri. As a 8-9 year old kid on the deck of the Nimitz, the main thing I was thinking of how sweet F/A -18's are and if anyone could survive a belly flop if they missed the nets after falling off the deck.. rofl...
+
Now these people are like me how old are u guys I am 14
7:10 Commandant Piché : A national hero here in Québec, Canada.
Thanks for honoring him Capt'n!
The 60Hz Flicker next to Joe is killing me
Although I am a graduate of aeronautical engineering I am learning a lot more just watching Captain Joe's channel. Congratulations and thank you Captain Joe !
Captain Joe, I have watched a few take-off and landing videos from cockpit and notice that the pilots constantly are pulling the rudder back and forth. I think you should do another awesome video about why that's done. Thanks. Stay awesome
The rudder pedals are for nosewheel steering as well as the rudder. Large rudder pedal inputs result in only small nosewheel steering changes.
I like the fact that Joe explained that braking incorporates slippage.
Usually in high school they just tell you that static friction is greater than sliding friction and that, since the instantaneous speed of a rolling wheel relative to the ground is zero in the contact point, ABS will keep the wheels spinning so that they can transmit the maximum amount of power to the ground. Whereas, using more than one reliable source I've found out that the peak of the coefficient of friction happens when there is a certain amount of slippage. Surely the motion of the tyre in that condition will be closer to a rolling tyre than to a sliding one, but still it will be sliding; actually, when the slippage is zero, so will be the friction coefficient.
I really enjoyed the graphics and editing and the overall knowledge I received from your video!
Thanks Joe! ❤
It's wonderful to see your employer, Cargolux, supporting your videos. I really appreciate their cooperation, and of course your videos!
4:49 when he says "blowouts" he is being serious.
He is standing next to 4 bombs. 4 _very powerfull_ bombs.
Each of those tires are inflated to around ~250 p.s.i.
2 of them probably have enough air crammed in them to fill the entire interior of the plane to nearly 1 atmosphere. That includes the wing fuel tanks, fuselage and the hellhole.
Imagine that much air escaping the tire instantaneously.
Yeah. It can blow a car apart.
EDIT: I forgot to add, that pressure is when the tire is cool. Say, 60°F at sea level.
You all know that heat affects air pressure. Which is why you add somr to your car tires in the winter and release some in the summer. The same thing applies to aircraft tires. But the effect is greater because the tire pressures are _much_ higher.
If that tire lands in a hot middle eastern airport, when the black paved ramp is 150°F and the air is ~130°F, that tire pressure might pass 300 p.s.i.
And, more importantly, if that tire suddenly skids and burns rubber, or when the brakes are applied, that tire may suddenly be a few hundred degrees hotter. And that quickly heats the pressurized air inside.
And then...well...use your imagination.
Spicy air
*looks dangerous, let’s do it!*
@Thegreatduc 69 I’m all in
I have to work with containers of gas at 3500 psi.
Agreed
(250 p.s.i approximately equal to 20 bar)
Thx Captain Joe. I use your videos to study for my annual dispatch desk check. Very informative.
Great video ! i am sure this is explained well! Why don't you make a 747 walk around video! 😜
a walk around video is much anticipated by me!
That would take him forever 😂
I'd love to see it though!
@@davecrupel2817 haha yes! but it should be done as the queens are vanishing!
I’d love one!
I don't know if he has a leash big enough for a 747.
You are so awesome! I never thought a video about ANTI-SKID, would lead to a reference about the AirTransat landing in the Azores! Glider pilot yes! Hero, still in question.
2:00 That laugh got me so hard 😂
Very good explanation Captain Joe. Clear and precise. Thumbs up every time.
Same system of lock and release valves is used in locomotives and passengers cars to prevent wheel locking.
Thanks for the explanation and greetings from Italy
Captain Piché is kind of a national hero in Québec! A movie was made about is life that was quite something. He was more of a bush pitlot than a experienced glider pilot as I know .
Captain joe was such a great motivation for me on my own youtube journey,I am glad I was inspired by this man.
Ohk but i will not go to u boring ass channel
*Captain Joe is not only an exceptional pilot but an amazing RUclipsr.*
1:50 I really laughed, that was good for my quarantine routine. The rest of the video is pure quality, as always 👏
Have been enthusiastic aviator since i was a kid and this chanel have been one of the best ways to find out about everything i need to know to enter the unknown
Joe you are a great youtuber.
I hope that in a few years I could be a pilot.
Regards from Spain and thank you for teaching as good as you do it.
JD3 9 he is a pilot.
@@collinm.2408 Also a youtuber!😀
I couldn’t stop laughing at the car going at 4,300km/h 😂 Nice work as always Captain
1:49
Or any Flying armor Piercing fin stabilzed discarding sabot round APFSDS
A tank guy
First timer, loved the video, but loved the outro song even more. Caused involuntary dancing for both me and my Pomeranian
It's been a long time... You did live stream. 😉 We are waiting for another 😎😎
Captain Joe I really love watching your channel, and learn from these a lot you are my first inspiration in the road of becoming a pilot..One day I will meet you and have a talk..
Captain Joe Just one question: Do you think being a glider pilot / having glider piloting experience can help commercial pilots in certain extraordinary situations / incidents or accidents? One you mentioned in this video, the other one was the emergency landing on the Hudson by Captain Sullenberger. I bet there are even more. Do you have glider experience yourself? Thx.
Hi, I am from Kerala, Indian. Here an Boing 737-800 at Calicut airport overshot the runway ( Table top runway). Sadly it took lives of 19 people and both pilot. Waiting for your explanation video on that.
RIP for those people how lost their lives 🌷🌷
Thank you
6:45 ..... Damn that's a hard landing.
Looks like testing though.
@Qi Sen Wang fr, that cargo took a nice bounce.
411Adidas the video is slightly sped up, so it looks like that.
@@ZK-APA I have to disagree. It looks normal speed transitioning into a minimal slow motion
411Adidas ruclips.net/video/1Oc0tgkYMDg/видео.html
The original video. From here you can relate the sped up video.
Qi Sen Wang you are right 0:17 looked way harder landing
Thank you! Your video made it clear how the anti-skid system works. Thanks again.
Great video! I really like the clever editing too✌
EXCELLENT video today Joe, thank you so much. I have always wondered why the plane jerks with more stopping force upon landing, so thank you for answering my unasked question!
4300 km/h. That’s the first time I laughed in a Captain Joe video :)
I was so excited when I liked this video. The like counter went from 9.8K to 9.9K!
I'm my flight sim I had to use RTO and it was kinda fun. The story is my stick locked up and I couldn't pull up at V1 so I pulled the throttle down to idle and RTO took over and stopped near the end of the runway.
You don’t rotate at V1
I may not have this exactly right. But Dunlop developed a system called the Maxaret system in the early 1950’s. A wheel locked when it hits the ground will stayed locked as it rides on a layer of superheated steam. As a side issue it also cleans rubber on the railway causing white tracks. I know the 1st British passenger jets had a version of this system. It was extremely complex as it was not controlled by electronics.
26 seconds later, love you, CJ. I think you should do a video about 737-8 max (love this plane)✈🙂
You love the one that being grounded in almost every airport around the world? It'll be good if CJ happily to accept that, to explain what the main reason the already troublesome aircraft and why it's grounded.
@@franswahyu6831 just already for saying that I hate you. You are literally that guy who just doesn't know anything about this aircraft, but ofcorse is an "expert in everything" and btw, we already know all the problems aircraft had (they are ALREADY FIXED). And FAA is returning them in August...
I'm an Area ATC and I love your videos, I like the way you introduce the subject. you can be a great aviation teacher.
5:03 - ABS light on while cruising at what I assume is 185 km/h (111 mph)!
Must be on the German autobahn
let's be optimistic and believe it was the pre-check that some cars do that roll the dials all the way and light up all lights in some sequence
@@Kalvinjj That is plausable. I see that in my Ford's instrument cluster test.
Normally not a big deal for car drivers as most of them usually break rather gently and the street conditions cannot be too bad if one really drives at 185 km/h. ABS should not be needed regularly, only in special cases like sudden snow mudd or some idiot coming out of a hidden street and ignoring your right of way.
Yes the screen inception keeps on going!
Episode 5 Of asking: Hey joe how long does the Fuselage of a plane last?
Nice
Depends on the amount of cycles it has flown
until you want it to 😂
Roughly 50-60K cycles depending on model
Hey cap! Just wanted to say we all appreciate the effort you put into these videos! I know you are too busy to respond to most comments, but if you see this, we all love your work!
Why is everyone ignoring the quality of that “WOW” during joes intro 😂
yes true lol
AVIATION MY LIFE !! How are you?
@@Jackinfinite nice u?
K
AVIATION MY LIFE !! Yeah I’m alright thanks
I"m not a pilot, but have an interest in aircraft. I first read of aircraft anti-skid systems on a very early late 40s all-weather jet interceptor.(Which would have to land in any weather)> It would have been an analog system back then. If I remember correctly, the rotors were chrome plated copper. (Don't quote me this, it's been years)
747 left us 😢😭😭
For example UPS has ordered 14 new Boeing 747-8 cargo aircraft to their fleet.
And other cargo airlines like Cargolux has still 11 of the B747-400F and 15 747-8Fs in its fleet, while Polar Air Cargo has a total fleet of 12.
The Cathay Pacific Cargo fleet includes total of 20 B747 aircraft.
And there were still 457 Boeing 747 aircraft in airline service as of May 2020.
We will still see many B747s flying in the near future.
@@mikep9604 Cargo operators always give a new life to aircraft that retire from passenger service. It's the way to see 'em after their passenger days, thankfully for enthusiasts. Same for the MD-11s and even DC-10s (tho those have been in part upgraded to MD-10s, so a DC-10 with MD-11's avionics, dunno what else they change)
Freighter variants will be around for years to come.😃
Freighter variants will be around for years to come.😃
In my old car, a Opel from 1996, the anti-skid was so poor it would lock the wheels for a second, then release and let them roll for another and repeat 😂
Hey Joe love you and your work a lot
Being a curious *kid* pilot I had this question : *Why don't the pilots use AUTOLAND always??*
Would be great if u could answer that😘
Because not all runways/airports support the required approach criteria for autoland. And what if one time as you land you have lost the autoland capability then have to land manually but not done so for a while. It most likely won’t be a smooth one
abbysnowmist yes they can. Just depends how much wind is prevailing and the runway slope. Been on a flight where the pilots used autoland (thanked them for the smooth landing and they said it was actually an autoland)
It is to extend the life of the runways, because autoland will land every aircraft exactly at the same point causing a hole in the runway. (very precise system)
Papercraft Shikhrrr because one the aircraft, runway and the pilots all have to be qualified for it, so you can't do it everywhere.
And two, when the pilot has manual controls, he or she can make rational decisions and make adjustments as needed. Autoland can't do that (eg Autoland has a crosswind limit less than a manual landing)
Pilots are pilots because they like flying airplanes. This includes landing them.
Awesome video Sir! I’m currently in A&P school at the moment, and we are currently on the subject of Anti-skid systems on commercial aircrafts. I find this video very accurate. Thank you for creating these informative videos for us.
Exactly same here 👍🏼 airframe
Retired A&P,. It was a great career!
I'll save you 10 minutes. The answer is yes.
As a trucker, the car drivers think I have the brakes of '47, at times, just happy that Aviation has 99.9% hydraulic brakes, I have flown on an AN-2, so I experienced Air Brakes on a plane.
Lewis Hamilton's Teammate Captain Joe in Mercedes 🔥
Bono in the ATC Tower
@@simastautkevicius1372 Radio: Joe, it's James
@@Liju_582 Well done, Thank you.
Hi Joe, hope you are doing absolutely fine. My questions to you are as follows:
# Why sleeping berths or bunk beds are not popular in airliners?
# What is LNAV/ VNAV? How does it work? And how it's different from ILS?
# Types of ground vehicles and types of equipment used for airport operations on the ramp?
Me: reads the title of the video
Brain: wait isn't there an anti skid point on the checklist.... Yes planes have anti skid
Me: TAPS ON THE VIDEO
One of the many projects I worked on in my aerospace days was development of multi-mode Auto-Brake and Engine Start switches for B-747. Great bird!
Captain Joe, can you please make a *video* on the *runway touchdown/aiming zone markings* ....???
I don't have any questions Joe.. Just amazed by the video posting frequency 😃👏
Thank you for always making amazing videos!!!
Also, you should play simpleplanes the community is amazing
Captain Joe's Editing is getting better every video ever
Sir I am 18 years old and u have been a very helpful guy
The Jensen FF of 1966 was the first production car to use ABS, it used the Dunlop Maxaret system that was used on aircraft, so aircraft had ABS before anything else.
As you watch each piece of a jetliner be dissected.....how can you EVER see a plane flying overhead and not just be FLOORED by the incredible nature of these beautiful machines?
Thanks Captain Joe, I didn't got it clearly before, but now I understand it clearly. And I love the way you explained this kind of systems, I'm sure it'll give basic understanding for many other enthusiasts too....
Big fan from Ethiopia.
#Staysafe whereveryou are🛫!
After watching a lot of videos from captian Joe I just learn a lot about planes
Won’t skid on the test right here ! 😉 Exellent video ! Love it ! 👌
Microsoft Launches it's Flight Simulator 2020 in a couple weeks Joe. I know its not a real simulator but a video of you assessing the in-game 747-400 would be so awesome. It's as close as many of us General Aviators will ever get to flying the big-boys so your thoughts would be the icing on the cake! Please say yes!
You r explaining so great braking system..❤ thanks sir
Long story short, yes, coded in RBCU are functions designed to report max & min speeds for each wheels. At least on the A350.
The ABS system was developed under petiton of Onkel Aldolf by someone with the ''Bosch'' lastname once it was clear that breaking in the moist/freeze autobhans was a problem.
The mechanical ABS was too big for rockin on a BMW or Mercedes at the time but the war came so the Luftwaffe had to face the despair of trying to stablish an aerial bridge with Stalingrad and skiing was big chunk of the problem. They asked for help and the early mechanical ABS was mounted on some Henkel planes if i remember.
Fascinating. The first time I see the transponder text running on video. It's out of focus, but you can see it.
Hey Captain Joe i drove cars way before ABS was invented but acted like ABS by pumping the brake in quick succession in other words pump the break lift the foot off and pump it again quickly. Great video as usual
Yeah, Lewis know how to take care of the tiers, any way: go Max!!!
You know the outro song is what convinced me to become a pilot when I grow up 8:45
you always make me fall in love with planes again and again.....Thanks Sir!
Those post landing air transat wheels are insane !!!! 😱
Thanks for ur education. Ppl get all the question ans related to airoplane. And i hope those who apply for the job to become a pilot they apply for the exam as well and they get passed they find full passing marks and become practical then they run flight
I meet Robert Piché 5 years ago and he's a very nice guy ! Also the movie about him is really nice too.
@Qi Sen Wang Ho nice !
A related fun fact as a car guy. There was an early attempt for a car ABS system back in either the 50's or early 60's. They actually called it "Anti-Skid"
As far as I know the first production car to have anti-lock brakes was the Jensen FF in the UK in the 1960s. It used the Dunlop Maxaret system that was already used in aircraft. It was expensive but this was tolerable because the Jensen FF was a very expensive car.
The Brakes used in commercial Aircraft are comprised of Carbon Ceramics, the same ones used in Modern racing cars such as F1, NASCAR, INDY Car, etc. The Technology originated from the aerospace and rail industries then to auto racing and now down to commercially available automobiles.
Hi Captain Joe thanks I'm a commercial pilot studentthe video on Anti-Skid really helped.. I was wondering if you could make a video or explain Cabin pressure I've looked at several sources and they seem to be ambiguous as to the source of cabin pressure and how it's altered in terms of temperature and pressure
Thank to pay tribute to Robert Piché. Here in Quebec, he is a true hero.
2 days ago there was a plane which crashed in india. it was coming in for landing and had no grip on the runway so it overshot and fell off a steep cliff and the end of the airport.
Most safety devices and cabin device found in cars are a direct result of the aviation industry having designed and implementing them on aircraft. The designs revolutionized safe travel in aviation so much. It was adopted in the automotive industry. There is a long list of things that found a purpose in aviation and eventually became normal in the automotive industry.
Captain Joe explains technical things better than my teacher.
I like the idea of a commercial airline pilot also being a gliding enthusiast. "Ladies and gentlemen, this is your captain speaking. We're currently at 35,000 feet; as a fuel-saving measure I'll soon be shutting off the engines and going in search of lift." :-)
Joe, can you do a video about the conditions in which a pilot must abort a takeoff/landing? Or when a pilot must land/takeoff under dire circumstances?
Sir speak about the need of trimming wheel in the cockpit
CAPTAIN can you please make a video on Airbus 320 lubrication system .How the aircraft parts are lubricated ??.....
Great video. Your videos are like a lesson online.
this is so GREAT CAPTIN JOE I WANNA RECORD WITH YOU ONE DAY
Really wonderful explanation. Thanks for the video. Given the significant cost of those brake clusters, I wonder how often they replace them. I would imagine not all that often.
Steel brakes, the "classic" material, were typically designed by the brake vendor to get about 1000 landings from a rotor/stator assembly. For carbon brakes, first introduced for airline operations (other than Concorde IIRC) in the 1980's, more like 3000 landings. The life for any particular unit will depend on the actual amount of brake energy absorbed in each of those landings.
Hi Captain Joe.....!
I Love your videos.....!
& work.....!
Heyy joe it would be the best thing ever if he would see this👉👈 i need luck because i am gonna fly tomorrow 💗
All jokes aside, a car without ABS on a dry track is around a second per lap faster than a car with ABS. And that is due to "Threshold braking", during which you should have the tyres go 3-10% slower than the vehicle is moving. It is because the is allowed to flex a little bit more because of that, has more grip.
However, plane's tyres are inflated to such pressures that the probably wouldn't flex at all and would instantly lock up.
excellent!!! captain joe. Youre indeed a true captain. I feel safe boarding your planes
Firstly he’s not a captain (note only 3 stripes) and secondly he flies for Cargolux so why are you boarding their planes?