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Gear down, three green and let´s get started!
So let´s look at the different types of landing gears. The most common one out there is the single axle landing gear with a tyre fitted on each side mounted to a large strut. Mostly used on passenger jets such as the Boeing 737 and Airbus A320.
With increasing weight, you need more surface, so more tyres to evenly distribute the weight of the aircraft.
So if we look at the main landing gear of the Boeing 757, you have the main landing gear strut, which by the way is filled with nitrogen acting as a spring force and hydraulic fluids for dampening. Then you have the truck or boogie, and four tires in tandem pairs. But more importantly, for today´s topic, you see this little hydraulic actuator right here, the so-called truck positioning actuator aka the tilt actuator. This little actuator is attached aft of the main gear strut and pushes the rear wheels downwards forcing the forward wheels to move upwards as the truck is axially mounted to the main strut.
As the plane comes in for landing, the rear wheels touch-down first. The actuator holds up against the pushing force, otherwise, the rear tires could bounce up, slamming the forward tires into the ground. Once the weight of the plane presses the tires onto ground, a pressure relief valve opens up and the actuator collapses letting both tires touch down. This all happens in the split of a second. Once the actuator is fully compressed, so weight on wheels, it triggers the air/ground sensing unit from air to ground before the nose wheel has touched down, automatically extending the ground spoilers and allowing thrust reverser deployment and depressurizing the aircraft etc.
But see more in the video
Thanks for watching, all the best your "Captain" Joe
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I am impressed with your knowledge and experience of how an aeroplane work. Thank you for sharing and explaining your knowledge. Well done!
oBaboonMano (4 days ago)
When you walk barefoot, you most certainly do not heel strike ;) sorry just being awkward
patrick goja (4 days ago)
There is no suptitres for romania
doc fmf (5 days ago)
Running analogy is false. Mess your heels up doing that
mccloysong (5 days ago)
I never knew. I mistakenly thought it was so the main gear could all touch down at the same time, and to cushion the touchdown as the wing gear would compress. Thanks for the trivia.
Panzerfaust (6 days ago)
All of those automatic functions resulting from the air/ground sensor sounds like one broken sensor away from a crash.
алексей богомазов (7 days ago)
Решен зритель привет!!!😀🤘
comdi tek (7 days ago)
Today, you Captain solved one of the personal mysteries haunted me for years!
Rainer Halbich (8 days ago)
How do you do wheel alignment on a plane like this?
Isak Leo (8 days ago)
Just noticed he uses the same background music as The Slomo Guys
Conshagen (8 days ago)
how you sounding normal while in super slow mo?
Aruchamy Nachimuthu (9 days ago)
Good man you.nice masg
John NoneDoe (9 days ago)
Tons of fuel in the wings huh? How can you still claim that BS with a straight face?
Thomas Gallagher (7 days ago)
? Yes that is how planes work...
JJDiablo (10 days ago)
2:06 proper term is “split second”
DAVID NELSON (10 days ago)
Hey captain joe - why are you wearing a 1st Officers Uniform not a Captains?
Ram Singh (10 days ago)
_I am just wandering, is all this your own research, or is someone organizing /preparing this for you... I really dig your videos by the way... good job man_
rick freeman (10 days ago)
Watching one video is enough. Have you ever listened to your own video Joe. The volume control is fucked just like commercials. Bye bye.
Ed Seaver Vinuesa (10 days ago)
Thank you for all you info on all vids!
Perry Knew Em (11 days ago)
I wonder if Captain Joe wears pants...
STEPHEN SHARMA (12 days ago)
here is another why for you Captain Joe ,,, why does military pilots and the ones
flying Air Force One land their planes much smother than commercial pilots ??
Matt H (12 days ago)
U2s has the strangest setup, bicycle landing gear, rear skateboard wheel and wing pogos that drop out after takeoff.
Eric W (14 days ago)
Is it a coincidence that this video is 747 in length?
pas mas (14 days ago)
who noticed the lenth of the video in time???
like of you didnt see it on your own
Thomas Richardson (14 days ago)
is it just me or did buddy just RIP the audio from the slow mo guys?
Yeet (14 days ago)
I assume it’s easier to butter a landing because of that
TTBCMING XU (14 days ago)
Just realized after watching this vid 3 times that the vid is 7 mins and 47 secs long: 747😂
Jack Rinaldi (14 days ago)
The time of the video is 7:47 and he’s a 747 pilot
Michelle Yorke (15 days ago)
How about tje wherl tilt of the antinov 225
Steve Fick (15 days ago)
It's amazing the engineering that goes into an aircraft. There is a ton of thought that goes into every system. Great FYI!
Bruno Moscovitch (15 days ago)
Your video ends exactly at 7:47
MrGuy Unknown (15 days ago)
C5 Galaxy, Just for the sake of Humor, *Must be a terrible Mayday if the Gears didn't rotate in time....*
H Max (15 days ago)
Is it too far off to think that it may be better for less tire wear, that the tires be spinning at the same speed as the plane is landing? Is there such a system? Or am I just some keyboard airplane engineer just coming up with crap?
Emmanuel Addae (16 days ago)
I have a question for you Captain Joe. Please share light on the structural makeup of aircraft wings such that two giant engines are able to be suspended on them and still fly safely?
Brian Percival (16 days ago)
Good info. Also only 2 wheels contacting runway first is less torque stress on the struts. If 2 =XX and 4 =xxxx and 6 =xxxxxx is the amount of rotational stress at the strut and wing beam mounting points. Another is cost in tire replacement, as rears contact first each and every time they wear faster. and are rotated out on a replacement schedule. Vice versa for front wheels down angle.
Remesh Mahadeva Iyer (16 days ago)
Captain I have a question ....on landing gear ...when an aircraft like the 777 moves on the runway a strange noise as if the tyres are hitting a gutter in a spoiled road is been heard. The aircraft should be moving smoothly isn’t it why such a noise from the under carriage. But I haven’t observed it in a 737 or 320. What is that noise ?
bassbuckmaster (16 days ago)
SlipNslide have been around long enough there are millions just laying around... Cover the runway, ditch the wheels on the plane and add a bigger fuel tank. Now Im off to a medical operation video to show them where they went wrong
CoolAsFreya (17 days ago)
So how would gravity extension work on the C5 Galaxy? Or if the gear doesn't deploy and rotate properly are you screwed into an emergency landing?
K. PacificNW (17 days ago)
Does this guy make more money as a YouTube pilot than he did as a regular pilot? And what that accent? South African?
TK 6059 (18 days ago)
But the Airbus A340-600 has gear which tilts in opposite directions. The outer wheels tilt upward and the one on the centerline tilt downward.
dapivimu (18 days ago)
Answer: common fucking sense.
W A (18 days ago)
I love to watch your video , good explanation,✈️✈️✈️✈️
AviationAvid (19 days ago)
I like the time of the video.
Rares30g PRO (20 days ago)
Your vid is 7.47 min.
U fly a 747
James Soleimani (20 days ago)
0:58 Only slo-mo guys OG's would know what I'm talking about.
Denil509 Gaming (15 days ago)
HiandIbefriskyfan (21 days ago)
Dummy dum dum
Meerkat Gaming (21 days ago)
Have u realised the vid finishes at 747
Asphalt 8 funny moments (21 days ago)
It allows to butter
Alec Sheen (22 days ago)
Anyone know the background tune it's so nice.
Mj j (24 days ago)
He definitely banged up the pilot girl, the video was just a decoy to throw off the husband.
krafty777 (24 days ago)
I wish you had shown the C17 landing gear and the B52 landing gear as well. Both are very unique designs. The B52 however is truly a one of a kind, being that the gear can all be steered in such a way as to allow the aircraft to takeoff and land in extreme crosswind conditions with the aircraft actually traveling down the runway at extreme angles. I hope you will consider doing a second video featuring these two unique landing gear designs. As always, love the videos.👍
EpicLittleGamer (27 days ago)
1.22 million subs
RealyRandomStudio Savage (27 days ago)
It’s tilted for premium butter 🧈
Eugene Ramos Jr (27 days ago)
Captain Joe that is very amazing I love watching your videos I'm from the US not a pilot but I am a fan of yours and watching this about wheels in the plane wow very amazing I love learning about planes I wanted to be a pilot when I was young but I got scared and that was my biggest mistake not becoming an airline pilot not studying it as a kid I just hope all Pilots got this kind of knowledge that you have don't make things better in life and pilots and passengers
Xorloz (28 days ago)
Is it just a coincidence that this video is 7:47 minutes long?
Gian The Gamer (30 days ago)
Doctor:you have 7:47 minutes left
Me:watches this video
hotdog the 2nd (1 month ago)
7:47 minutes long
888TopGear888 (1 month ago)
Ma man uses alpha waves as background music to explain his videos.
Sabino Humbane (1 month ago)
Thank you for the knowledge!! I enjoyed watching this video!!
AngeloYT Official II (1 month ago)
This helped me a lot
•vPilotDan • (1 month ago)
In this video Captain Joe talking about Boeing 747, the video: 7:47
ZLYDENS (1 month ago)
Well stupid question I don't even need to know as it must have to do with the angle the plane lands on
The Megatron (1 month ago)
any medicine for the ones who are scared of flying ? good one which works
Orbital Potato (1 month ago)
*J O E M A M A*
Diji (1 month ago)
Why is this video titled?
BladesBoyGaming !!! (1 month ago)
What does that Concorde pin on your tie stand for?
Sasza Ukrainczyk (1 month ago)
Steven Mayhew (1 month ago)
I like to refer to the tilted position of the 747's wing landing gears as being in a "wheelie" position, based on how motorcyclists pop wheelies.
Witgang Younotube (1 month ago)
when hydraulics fail in that military plane the pilot still performs a "gravity drop" but instead of doing it on the landing gear he does it on the back door after he putt on his parachute.
also the captain will always be the last to leave the plane , he will have to run the most
T3SKATLIPOC4 (1 month ago)
...lety, sid you get it?
Leo Yohansen (1 month ago)
"You are flying aboard the Seduction 747."
Harald Hårfager (1 month ago)
To fit! am i right?
Tanishq Patel (1 month ago)
Is he retired?
TaCo (1 month ago)
Next video: Why do ryanair is always rough at landing?
Jared Voorhees (1 month ago)
C-5s are notorious for breaking the gear. Known as Fred. Fing ridiculous economical disaster
Emirates 101 (1 month ago)
Tem socks tho
Kalpesh Wani (1 month ago)
Gerda Gokciler (1 month ago)
the boogy LOL SO FUNNY
Shubian Sun (1 month ago)
Is no one going to acknowledge that we have a foot reveal?
DARK NINJA (1 month ago)
I just realised: the video length is 7:47. :)
N English (1 month ago)
Adam Scheffler (1 month ago)
7:47 long any clues???
whiskey brandy (1 month ago)
For all the dislikes please tell me why brilliant video
trey kearns (1 month ago)
What If somehow they engineered some sort of lightweight, extremely efficient kind of fins that mount to the side of the rims of the undercarriage and these bad boys kind of get the tires spinning before touchdown to reduce wear and tear on the rubber? I realize they would have to be small because space is a major issue that's why I said they should be incredibly efficient, I wonder if it would be worth or if tires are cheap enough that they don't need to worry about that stuff
Sultan Jamir (1 month ago)
Put every captain Joe video in 1.25x thank me later
my name is classified (1 month ago)
Yo I wish you were my math and science teacher
Miko Amio (1 month ago)
I love it🤩😍
Nicolas Ovalle (1 month ago)
Haha this video is 7:47 long
Vasto Lorde (1 month ago)
The video is 7:47 long, I see what you did there.
xavier Lee (1 month ago)
Was the video 7 minutes and 47 seconds a hint to you flying the 747 or is it just me?
Target SSC (1 month ago)
Is it true that pilots die soon after their retirement because of messed up circadian rhythm during flying hours and over exposure to radiation at such higher altitudes
Shaik Shahnaz (1 month ago)
Tell us about the tyres. How often are the tyres changed?
Naveen Rodrigues (2 months ago)
Please make videos on Emergency evaluation slides and emergency exits on Airbus and Boeing Aircrafts ..
Kulsoom Ishtiaque (2 months ago)
The time is 747
Joseph Selim (2 months ago)
Hi Captain Joe. How often are the tyres of planes are changed?
Erfan Uddin (2 months ago)
If landing gear does not work due to finishing fuel what will be happened.Without landing gear can pilot land the plane at runway?Please reply in the comment box.@captain joe
Jatin Bangar (2 months ago)
Great knowledge In Fluid Power systems. NICE video
potato chips (2 months ago)
Did not understand anything but still watched complete video
Rajan N (2 months ago)
Great video Capt.Joe. Would have loved to see the B-52 gears in operation, especially with a stiff crosswind.
astute one (2 months ago)
your videos mostly about your face and you don't show the plane and you English accent it not as a foreigner person is speaking, whenever I click you face is there instead of a plane