@SirDeanosity actually the spoilers don't add extra weight.It creates more drag,which helps slow the aircraft.The force acting there, will be along the longitudinal axis instead of vertical.Nevertheless,that test was awesome.We had many incidents,where pilots were looking to exit the active ramp at the nearest turn -off on landing, which resulted in greater wear of the tires and break units.Our engineering department told them to use the thrust reversers initially and utilize the runway's length
You are incorrect in your statement. While spoilers do indeed create drag and help to slow the aircraft, their primary purpose is to provide down pressure on the undercarriage to maximize braking and tracking especially when touching down on wet runways.
As an aircraft mech.had my fair share of changing all the brake units and tires on the same aircraft on the tarmac after a hard landing.no need to go to the gym to lose weight.Another thing,that odor emanating from the wheels is not nice at all.had to do an inspection of the struts/bogey and sent it on its way.It was a turn-around flight and this was done in the freezing rain.Next time there's a delay, passengers,its for your own safety and spare a thought for guys like us.
1:40, I'm pretty sure that the kinetic energy has already transformed into heat, so that would not make it the problem now would it?......... The problem here would be to effectively dissipate that heat.
@IndraEMC Because there's very little need for one. 747 can get into and out of more airports than the 380. Besides US planes don't run around the airport beating up much smaller planes. Pick on planes your own size.
@Xiber1 thats because everybody had already had tons of 747 plus a380 came out in early 2000's and they recalled them due to electrical issues and its a repeat now with emirates a380
@Airplan3z101 I flown on the A380 couple of times the ultra long range flight also numerous times on 747 of all series................NOTHING TO COMPETE WITH THE A380 NOTHING.ITS THE BEST OF THE BEST
@Airplan3z101 You are foolish to think that the A380 is the only aircraft that has problems, every aircraft has problems and they are sorted out by the issuing of Airworthiness Directives and Service Bulletins. Airbus know about these problems but they are non critical. You shouldn't get dragged into all that media hype.
@Sterlingjob Exactly! All have problems when first starting out. Look how long it's been since the last Osprey incident... Oooppsss... Damn, I think I just blew that!
How come in all these "flight engineer" videos such as the a380 video and the 787 dream liner video..... they always, i mean ALWAYS put a woman at the end proudly talking about the engineer achievements of the aircraft almost to suggest that we are going to assume that those engineer teams are made up of hard working women.... when in fact they 99% men or even a 100% in most cases.... I hate this mind job media that tries to play these stupid mind games.
So, if you dont move, you will have an airspeed (= to flow; =to wind) (Tail wind = negative speed, front wind = positive)
And if you move: air speed = GPS speed + Wind speed
This only work on low altitude and on ground (Higher, there is density of the air that change and lots of thing) thats why in higher we use mach for speed
Could I suggest to all those engaged in the debate about ground speed and air speed and what not to try reading a fantastic book that will answer all your questions, "Aerodynamics for naval aviators" it’s relatively inexpensive and full of great information.
@Joseph9536 747 pilot here. So happy with this aircraft! :)
Fortunately, never have had to do a RTO. But I have the utmost faith that my aircraft will stop in any RTO. Thank heavens we're allowed to use reverse thrusters on an emergency RTO... I can't imagine standing on those brake/rudder pedals and ruining those brakes like that!
do airplanes use less engine thrust when tailwinds are strong like 200mph. I know this increases the ground speed but surely doesn't this have some effect on the airplanes airspeed also in some way or form even though airspeed is the windpressure against the aircraft. If the wind is blowing strongly behind the airplane then doesnt this blow it through the air faster. This is where the physics get complicated. can strong tail winds also increase airspeed as well as ground speed
@210482fmj Hard to explain with 500 words >< On the ground a tail wind increases takeoff roll distance and makes the aircraft want to taxi quicker. In the air its stabilized with the parcel of air, so a tailwind would increase groundspeed (used for navigation) but we would fly on the indicated airspeed.
I don't fly the big jets so I cant say whether or not different power settings are used for different winds; In piston aircraft we always set maximum available power for takeoff.
@enivrinai I'm wondering if at cruise a tailwind actually blows the airplane forward through the air faster. A tail wind must have some effect on the airplanes movement through the air as well as the obvious ground speed. Its difficult to understand this deeply without a degree in aviation
@210482fmj It doesnt, think of the aircraft stationary in an arbitrary parcel of air in the sky moving North at 20knots, once it has been there for ~30secs (+/- depending on weight) it is up to the speed of that parcel. After that everything moves and acts as though the parcel of air is stationary with reference to the ground.
@210482fmj Lets say there is no wind at all. You are flying in an airplane and the airspeed indicator says you are doing 200kts. You will be doing a similar speed across the ground. Add a 50kt tailwind, and you will still indicate an airspeed of 200kts, but the speed across the ground will have increased by 50kts. The amount of power used is up to the pilot, but is typically unchanged
@Spiritualseeker2007 actually that might be wrong. I have heard one the ground a strong tail wind increases your grounspeed or gives shorter take of distance on the runway. Have you ever felt a aircraft on the runway with strong wind and the you can feel the aircraft being blow around.
@Spiritualseeker2007 WEll a comercial jet would never takeoff with a tail wind anyway and always into the wind but if it did for research purphouses it would have a strong effect
@210482fmj Airspeed is the speed of the oncoming air so a tailwind component will reduce the speed of the oncoming air by its (the tailwinds) value eg Indicated air speed (IAS) 320kts + 20kts tailwind = trueAS 340kts, simple eh? It's worth noting that most jet aircraft are not limited to speed by engine power but by the airframe tolerence. The tailwind has no effect in terms of physically push the plane along unless it was travelling at the same or higher speed than the plane is !!
@motiger999 Real aviation enthusiasts like both, only stupid yank nationalist with low IQ hate Airbus just because it competes Boeing. Without competition we would still live in Middle Ages.
@Pvjinflight I'm sure there are plenty of self-proclaimed aviation enthusiasts in Europe who hate Boeing and love Airbus. And you know what? There is nothing wrong with that just like there is nothing wrong with having hating Airbus and loving Boeing. One need not like all music to be considered a music enthusiast, like all cars to be considered an automobile enthusiast, or like all aircraft to be considered an aviation enthusiast. Nothing wrong with cheering one's home team, so to speak.
@madisonelectronic It was not serious kid, they now just require checking it every few year. Remember how 2 737´s crashed because of Boeing rudder design error?
@TheophilusPWildbeest Because it's an "airplane." You know, the thing that was invented in the United States. (And yes, I realize that Da Vinci drew plans for one long before the Wright brothers flew, but official credit of the airplane goes to Orville and Wilbur.)
@Polishamrock More recognition should be given to the French becuase the Blériot series of aircraft were much more successful and were the basis of most future aircraft development
I'm shocked that with all the technology that goes into the braking systems of these modern aircraft, that there isn't some sort of automatic cooling system that can be deployed after an aborted take off like this. Seems kind of silly, when as demonstrated, it can take up to five minutes for fire trucks to arrive. While in that time, the aircraft itself could be avoiding fire by utilizing an on-board system.
Either way it's great to know an aircraft that HUGE and heavy can get itself stopped!
@kujo4242 Its a question of added weight, complexity and cost for something that might happen only a few times in the aircraft's service life. The odds of this happening at MTOW and V1 is pretty slim.
Most of the time the pilots either go fly or abort the take off well below V1.
Once, upon landing at OHare, I locked the brakes up on a 747 and you should have seen the size of the smoke cloud that resulted. Don't try it at home kids.
Check out the Airbus A340 doing this same braking certification test, their brakes couldn't take it, they got so hot the tires blew out and caught the underside on fire. If not for the fire crew the plane would have been charcoal.
@ryanbirch I'm not only right you retard, the guy says exactly why the firefighters aren't allowed to intervene until the 5 minute mark. Not our fault you're an idiot with extreme ADD and can't watch a barely couple minute long clip and get any information out of it.
Clearly none of you idiots actually listened to the audio of the video. The guy clearly states they had the firefighters wait for the two minutes to see if the brakes could withstand the heat.
Saw this plane many times at Boeing Field when I worked in the area. I was astounded at how much quieter this plane is compared with earlier versions.
Anyoen notice that as of 14:08 UTC on 11/30/11 there are 747 likes and only 8 dislikes? (747-8F) get it lol, noone change that I think that is awesome! Plus a sweet video.
@MrFinRaZor u must live in America coz I don't have classes called whatever we just don't because we live in England but I love that plane and we r learning about it in class
Surely this is an unrealistic test in that an aeroplane of this nature (in fact any aeroplane for that matter) would never have the brakes "down to the metal"!
So why test for something like this which would never be the case? A more realistic test would be to simply perform the test with normal brake linings in place?
@JohnMCom They want to test a WORST CASE event. If they know the plane can stop even with the brakes are worn down, they know that normal brakes can handle it. If they did it in a normal brake they wouldn't know if the plane can stop with worn out brakes
How did the plane stop 700ft earlier than expected, yet, as the engineer at the end says, the deceleration rate was exactly what was expected? Pick one! Either the plane performed as expected or better than expected!
great plane but im a little whoa about the range. on the boeing website, the 747-8I is reported to have a maximum range of 8,000 nmi and the freighter version has a maximum range of 4390 nmi. thats very unusual. the 777-200lr is much smaller but capable of flying over 9,300 nmi. very strange.
@MikeeDingDong Boeings, not Boeing's. Hehe, IDIOT!!! FUCK HEAD!! I am going to dislike the video just because I know how much it will piss you off. There is nothing you can do to me either :)
Those new GENX Engines are massive, almost the power of the GE90, with a slightly smaller Fan. The C5B Glaxy of the USAF flew at over 1 million pounds, using 1/4 of the thrust of the 747-8. It was a Competition between Boeing, and the USAF.... The Air Force took off with Identical Weight as the 747, then took on another 25,000lbs of Fuel via Aerial Refueling, and Landing at that weight.. remember, the C5 has 28 Tires to handle that much load.
The C5B is nowhere near 1,000,000lbs max. takeoff weight and has 4 engines with 43,000lbf each compared to 66,500lbf each on the 747-8. Thats a bit more than 1/4 ;-)
Even the smallest GE90 is more powerful than the strongest GeNX, different engines for different airplanes.
It CAN take off that heavy... with the old engines, providing it can take off at 830,000 pounds with only 7500' of runway. How do I know... Experience. And for the GenX Engines,you may want to research your information. The GE90-94 originally only specd 90k lbs of thrust, but initially made 91,500. The GEnX ratings in 2009 were a hair under 81k lbs.. that was nearly 4 years ago. Thats not a HUGE difference when testing a brand new engine. GEnX on the 747-8 are rated at 70,000lbs each.
@KeiYuuki2011 It seems ironic that the 747 passenger aircraft came into being because it LOST the contract to build a heavy lift aircraft for the military. They had spent a fourtune on it and then turned the design into a passenger aircraft. I know I am off on these numbers but I think about 120 C5A's have been built but about 1200 747 passenger planes have been delivered and they are still going. I spent a lot of time flying overseas on business on them and they are still a wonderful aircraft
Hey- I did this with the brakes on my car once right down to the rivets, I never did stop either as I passed that hi-way patrolman,,not for 10 miles anyway,, Ahhh who needs brakes anyway ,,,,
If someone would be kind enough to answer this question for me. I'm near sighted and I was told that F.A.A doesn't except lasik but does except cataract lens replacement. Does anyone have info on this? It would be greatly appreciated.
I'm watching this other doc right now. They said that this Saudi guy had lady friends and his "concierge" I guess you would call him, had to charter a 747 to send "merchandise" she purchased in L.A. back to Saudi Arabia. I had to look up this plane. Unbelievable. A fucking plane like this filled with Gucci and Prada
Worst case scenario is 5 minute response time for Crash Rescue? I'm sorry, they don't respond like city boys do. They respond in less than a minute. So that's bullshit.
@brdrptrl06 Apparently you have a short attention span. Watch the video again at about the 1:54 mark, and you'll see that the firefighters stood by just watching the plane's tires for a few minutes before they actually sprayed water on the brakes.
15 people developed a crack on their wings.....
DementedButtHole 2 days ago
OK, but what about no Spoilers too?
MegaHillview 4 days ago
@MegaHillview Perhaps the use of the spoilers is intended to produce maximum weight on the gear so as to prevent skidding of the tires.
SirDeanosity 4 days ago
@SirDeanosity actually the spoilers don't add extra weight.It creates more drag,which helps slow the aircraft.The force acting there, will be along the longitudinal axis instead of vertical.Nevertheless,that test was awesome.We had many incidents,where pilots were looking to exit the active ramp at the nearest turn -off on landing, which resulted in greater wear of the tires and break units.Our engineering department told them to use the thrust reversers initially and utilize the runway's length
MegaHillview 3 days ago
@MegaHillview
You are incorrect in your statement. While spoilers do indeed create drag and help to slow the aircraft, their primary purpose is to provide down pressure on the undercarriage to maximize braking and tracking especially when touching down on wet runways.
xerocytesteve 3 days ago
OOPs, this comment was supposed to be directed to SirD
xerocytesteve 3 days ago
@xerocytesteve Ok.thanks for the heads up.
MegaHillview 2 days ago
As an aircraft mech.had my fair share of changing all the brake units and tires on the same aircraft on the tarmac after a hard landing.no need to go to the gym to lose weight.Another thing,that odor emanating from the wheels is not nice at all.had to do an inspection of the struts/bogey and sent it on its way.It was a turn-around flight and this was done in the freezing rain.Next time there's a delay, passengers,its for your own safety and spare a thought for guys like us.
MegaHillview 4 days ago
Impressive! and that was, without the use of thrust reversers.
MegaHillview 4 days ago
GG WP
J4m1b1 6 days ago
OMG!!!
charissemaelucero 1 week ago
Safer than Airbus...
MrSMAlways 1 week ago
1:40, I'm pretty sure that the kinetic energy has already transformed into heat, so that would not make it the problem now would it?......... The problem here would be to effectively dissipate that heat.
deeya 1 week ago
it performed flawlessly
howardkevinm 2 weeks ago
Boeing, Y U NO MAKE A FULL DOUBLE DECKER 747 just like A380 ?
IndraEMC 2 weeks ago
@IndraEMC
Why don't you write proper english so that non-native speakers can understand you?
ferrari2k 2 weeks ago
@ferrari2k did you think i'm english native speaker ? no... i'm dutch, my english is bad, sometimes i use google translate.
IndraEMC 2 weeks ago
@IndraEMC Because there's very little need for one. 747 can get into and out of more airports than the 380. Besides US planes don't run around the airport beating up much smaller planes. Pick on planes your own size.
zarniwoop42 1 week ago
747 rocks .....A-380 is nothing compare to 747.
muhi706 2 weeks ago
@muhi706 380 is bigger
autr727 2 weeks ago
@autr727 Oh YEAH??!!??? Well, mine's bigger than yours!!!!
zarniwoop42 1 week ago
I will always love the look of the 747 since I first flew on one when I was 4 years old.
They have a friendly face that almost looks like it's smiling, where the A380 just looks like an angry kid with a big forehead!
tommyboomboom 2 weeks ago 3
Xiber boeing is getting much more money than airbus. USA rules!!!
SUPERSTALEPOPCORN 2 weeks ago
Nice to see that the good old 747 will still be with us some more decades..it wouldnt be the same without the Hunchback
sparrowlt 2 weeks ago
it's an old hat....should stop making it....there were hardly any orders for 747 400 in last few years.........A380 is the best.
Xiber1 2 weeks ago
@Xiber1 thats because everybody had already had tons of 747 plus a380 came out in early 2000's and they recalled them due to electrical issues and its a repeat now with emirates a380
Airplan3z101 2 weeks ago
@Airplan3z101 I flown on the A380 couple of times the ultra long range flight also numerous times on 747 of all series................NOTHING TO COMPETE WITH THE A380 NOTHING.ITS THE BEST OF THE BEST
Xiber1 2 weeks ago
@Airplan3z101 and dont forget now the cracking wing spars.....
scottwalper 2 weeks ago
@Airplan3z101 You are foolish to think that the A380 is the only aircraft that has problems, every aircraft has problems and they are sorted out by the issuing of Airworthiness Directives and Service Bulletins. Airbus know about these problems but they are non critical. You shouldn't get dragged into all that media hype.
Sterlingjob 2 weeks ago
@Sterlingjob Exactly! All have problems when first starting out. Look how long it's been since the last Osprey incident... Oooppsss... Damn, I think I just blew that!
zarniwoop42 1 week ago
@Sterlingjob They published an AD for the cracks 4 days ago....
tc223 1 week ago
im an airbus pilot, but damn, this is awesome!
captainpropilot 3 weeks ago
This has been flagged as spam show
How come in all these "flight engineer" videos such as the a380 video and the 787 dream liner video..... they always, i mean ALWAYS put a woman at the end proudly talking about the engineer achievements of the aircraft almost to suggest that we are going to assume that those engineer teams are made up of hard working women.... when in fact they 99% men or even a 100% in most cases.... I hate this mind job media that tries to play these stupid mind games.
o0POSH0o 1 month ago
Comment removed
o0POSH0o 1 month ago
This has been flagged as spam show
Take an easy example,
Ground speed = GPS speed
So if you dont move, speed = 0
Airspeed = Swiming pools with flow
So, if you dont move, you will have an airspeed (= to flow; =to wind) (Tail wind = negative speed, front wind = positive)
And if you move: air speed = GPS speed + Wind speed
This only work on low altitude and on ground (Higher, there is density of the air that change and lots of thing) thats why in higher we use mach for speed
kaosletic 1 month ago
Comment removed
kaosletic 1 month ago
Comment removed
kaosletic 1 month ago
yeah but they're over complicating the design. one day the deflate function will happen at the wrong time.
markyboy28able99 1 month ago
Could I suggest to all those engaged in the debate about ground speed and air speed and what not to try reading a fantastic book that will answer all your questions, "Aerodynamics for naval aviators" it’s relatively inexpensive and full of great information.
ipilot84 1 month ago
Long live the 747
Joseph9536 1 month ago 18
@Joseph9536 what is this a king? its just a plane
GoldenTagachi 3 weeks ago
@GoldenTagachi It's the king of airplanes!
Joseph9536 2 weeks ago
@Joseph9536 747 pilot here. So happy with this aircraft! :)
Fortunately, never have had to do a RTO. But I have the utmost faith that my aircraft will stop in any RTO. Thank heavens we're allowed to use reverse thrusters on an emergency RTO... I can't imagine standing on those brake/rudder pedals and ruining those brakes like that!
jonstewartforprez 2 weeks ago
10 people are airbus employees
panicslayernabz 1 month ago 37
@panicslayernabz Airbus employees are beyond this stupid fanboy crap.
pingpongpung 1 month ago
@panicslayernabz sure dude
autr727 2 weeks ago
@panicslayernabz Airbus hired 5 more people.
SirDeanosity 4 days ago
Wow
ke3wh 1 month ago
This has been flagged as spam show
/watch?v=kQCgKAXG4yQ
cool spotting compilation :)
Aeromantic95 1 month ago
I love jumbo jet more than the aribus a380 the a380 is cool to but I love this one better.
PREZILLA2009 1 month ago
Comment removed
marcinspotter5 1 month ago
do airplanes use less engine thrust when tailwinds are strong like 200mph. I know this increases the ground speed but surely doesn't this have some effect on the airplanes airspeed also in some way or form even though airspeed is the windpressure against the aircraft. If the wind is blowing strongly behind the airplane then doesnt this blow it through the air faster. This is where the physics get complicated. can strong tail winds also increase airspeed as well as ground speed
210482fmj 1 month ago
@210482fmj Hard to explain with 500 words >< On the ground a tail wind increases takeoff roll distance and makes the aircraft want to taxi quicker. In the air its stabilized with the parcel of air, so a tailwind would increase groundspeed (used for navigation) but we would fly on the indicated airspeed.
I don't fly the big jets so I cant say whether or not different power settings are used for different winds; In piston aircraft we always set maximum available power for takeoff.
enivrinai 1 month ago
@enivrinai I'm wondering if at cruise a tailwind actually blows the airplane forward through the air faster. A tail wind must have some effect on the airplanes movement through the air as well as the obvious ground speed. Its difficult to understand this deeply without a degree in aviation
210482fmj 1 month ago
@210482fmj It doesnt, think of the aircraft stationary in an arbitrary parcel of air in the sky moving North at 20knots, once it has been there for ~30secs (+/- depending on weight) it is up to the speed of that parcel. After that everything moves and acts as though the parcel of air is stationary with reference to the ground.
enivrinai 1 month ago
@210482fmj Lets say there is no wind at all. You are flying in an airplane and the airspeed indicator says you are doing 200kts. You will be doing a similar speed across the ground. Add a 50kt tailwind, and you will still indicate an airspeed of 200kts, but the speed across the ground will have increased by 50kts. The amount of power used is up to the pilot, but is typically unchanged
flynmid 1 month ago
@210482fmj a tailwind would have virtually no effect on the ground no matter what speed the aircraft is traveling at .
Its only possible to pick up speed from a tail wind while your in the air.
Cheers
Spiritualseeker2007 1 month ago
@Spiritualseeker2007 actually that might be wrong. I have heard one the ground a strong tail wind increases your grounspeed or gives shorter take of distance on the runway. Have you ever felt a aircraft on the runway with strong wind and the you can feel the aircraft being blow around.
210482fmj 1 month ago
@210482fmj
Yes its true the wind can play a role but i was referring to speed gain due to wind which is neglectable.
Cheers
Spiritualseeker2007 1 month ago
@Spiritualseeker2007 WEll a comercial jet would never takeoff with a tail wind anyway and always into the wind but if it did for research purphouses it would have a strong effect
210482fmj 4 weeks ago
@210482fmj Airspeed is the speed of the oncoming air so a tailwind component will reduce the speed of the oncoming air by its (the tailwinds) value eg Indicated air speed (IAS) 320kts + 20kts tailwind = trueAS 340kts, simple eh? It's worth noting that most jet aircraft are not limited to speed by engine power but by the airframe tolerence. The tailwind has no effect in terms of physically push the plane along unless it was travelling at the same or higher speed than the plane is !!
Fogster2580 3 weeks ago
This has been flagged as spam show
To all haters,
Look at the dislike bar.
Look at your penis.
No difference.
FSX318Heavy 1 month ago
wow :-)
StareHamry 1 month ago
I see there is a lot of physics invovled. Very nice cool
PenetratorAlpha 2 months ago
Love Boeing and hate Airbus which is "flying bus".
motiger999 2 months ago
@motiger999 Real aviation enthusiasts like both, only stupid yank nationalist with low IQ hate Airbus just because it competes Boeing. Without competition we would still live in Middle Ages.
Pvjinflight 1 month ago
@Pvjinflight I'm sure there are plenty of self-proclaimed aviation enthusiasts in Europe who hate Boeing and love Airbus. And you know what? There is nothing wrong with that just like there is nothing wrong with having hating Airbus and loving Boeing. One need not like all music to be considered a music enthusiast, like all cars to be considered an automobile enthusiast, or like all aircraft to be considered an aviation enthusiast. Nothing wrong with cheering one's home team, so to speak.
JonnyCrash 1 month ago
@JonnyCrash Whatever, still I think that just hating one manufacturers planes because they are not made in your country/continent is very childish.
Pvjinflight 1 month ago
@Pvjinflight Airbus made of screen doors and old beer cans. Note the serious cracks in the wings of the latest Airbus Skypig?
madisonelectronic 1 month ago
@madisonelectronic It was not serious kid, they now just require checking it every few year. Remember how 2 737´s crashed because of Boeing rudder design error?
Pvjinflight 1 month ago
@Pvjinflight don't forget the removeable roof encountered on a couple 73's
flynmid 1 month ago
@madisonelectronic
How about that Rolls Royce Trent 900?
A pristine example of British engineering ingenuity. Rearward sliding IP turbines are the ultimate in turbofan technology.
The Trent 1000 is even better...
Oh, this entire post is sarcasm laced by the way, for those who don't understand
mtrujillo1973 1 month ago
V1 means?
cleo0399 2 months ago
Well done Goodrich, but why can't americans say "aeroplane" properly?
TheophilusPWildbeest 2 months ago
@TheophilusPWildbeest Because it's an "airplane." You know, the thing that was invented in the United States. (And yes, I realize that Da Vinci drew plans for one long before the Wright brothers flew, but official credit of the airplane goes to Orville and Wilbur.)
Polishamrock 2 months ago
@Polishamrock What about Richard Pearse? (Kiwi)
brettv8 2 months ago
@Polishamrock More recognition should be given to the French becuase the Blériot series of aircraft were much more successful and were the basis of most future aircraft development
aspiringdrummer17 1 month ago
Wonder why they didnt taxi the aircraft off the runway? The 777 tests did that.
boundaryzero 2 months ago
I'm shocked that with all the technology that goes into the braking systems of these modern aircraft, that there isn't some sort of automatic cooling system that can be deployed after an aborted take off like this. Seems kind of silly, when as demonstrated, it can take up to five minutes for fire trucks to arrive. While in that time, the aircraft itself could be avoiding fire by utilizing an on-board system.
Either way it's great to know an aircraft that HUGE and heavy can get itself stopped!
kujo4242 2 months ago
@kujo4242 because if you instantly try to cool something that is overheated. it can potentially explode.
striderdnb 2 months ago
@striderdnb Well, I kind of figured that (after the fact lol). Perhaps a dry-chemical system to at least prevent fire?
kujo4242 2 months ago
@kujo4242 Its a question of added weight, complexity and cost for something that might happen only a few times in the aircraft's service life. The odds of this happening at MTOW and V1 is pretty slim.
Most of the time the pilots either go fly or abort the take off well below V1.
boundaryzero 2 months ago
His name is Capt Kirk........Nice...
RellyOhBoy 2 months ago
This has been flagged as spam show
This looked a whole lot better than the 340's test
emp29 2 months ago
Comment removed
emp29 2 months ago
big fan of aviation? check out my channel!
concorde232 2 months ago
Chuck Norris Call he wants his plane back !
zeldalink322 2 months ago
Once, upon landing at OHare, I locked the brakes up on a 747 and you should have seen the size of the smoke cloud that resulted. Don't try it at home kids.
psyjpg 2 months ago
@MikeeDingDong I agree. I like that plane so much in fact, I think I'll buy one!
(ahem) Can anyone spare a few million I can borrow?
I PROMISE I'll pay you back..... no, really!
panhead1219 2 months ago
Check out the Airbus A340 doing this same braking certification test, their brakes couldn't take it, they got so hot the tires blew out and caught the underside on fire. If not for the fire crew the plane would have been charcoal.
Nirky 2 months ago
@brdrptrI06 - Before you start calling people idiots.. you may want to go back to 1:50 and listen again...
ryanbirch 2 months ago
@ryanbirch I'm not only right you retard, the guy says exactly why the firefighters aren't allowed to intervene until the 5 minute mark. Not our fault you're an idiot with extreme ADD and can't watch a barely couple minute long clip and get any information out of it.
brdrptrl06 2 months ago
I Love Airbus Hate Boeing A320 Fan for Life But then This Came. 747-8 787-9 I Love Both Jetliners And Cant wait to see one of these Flying
JetBlueA320Pilot 2 months ago
Clearly none of you idiots actually listened to the audio of the video. The guy clearly states they had the firefighters wait for the two minutes to see if the brakes could withstand the heat.
brdrptrl06 2 months ago
@letgo1120
Because it take about five minutes for firefighters to respond
Sagarbhardwaj8 2 months ago
@Sagarbhardwaj8 wrong.
brdrptrl06 2 months ago
just a question, why couldn't the fire fighters do anything the first 5 mins?
letgo1120 2 months ago
Saw this plane many times at Boeing Field when I worked in the area. I was astounded at how much quieter this plane is compared with earlier versions.
spencnaz 2 months ago
In my opinion, the passenger version of the 747-8 is the best looking jumbo today.
lasuvidaboy 2 months ago
Very interesting video! I was amazed that the tires didn't melt or explode before they had a chance to deflate. Long live Boeing jumbo jets :-)
PurrPowerr 2 months ago
i see a flame inside the tires
09shadowjet 3 months ago
0:59 check the effect of the speed brakes, they actually "push" the plane down!
bozo86 3 months ago
@bozo86 I think what you are seeing is the forward transfer of weight...but dramatic test for sure...
CorrectiveAction 2 months ago
Anyoen notice that as of 14:08 UTC on 11/30/11 there are 747 likes and only 8 dislikes? (747-8F) get it lol, noone change that I think that is awesome! Plus a sweet video.
Zamzeeflizzam 3 months ago
Bettya the wheel bearings were cinders..hahahaha
dergrossen 3 months ago
the 8 dislikes are probably people that love Airbus
Michael62895 3 months ago
@MrFinRaZor u must live in America coz I don't have classes called whatever we just don't because we live in England but I love that plane and we r learning about it in class
AEROPLANEBURROWS 3 months ago
my school class is 8F!! :D
MrFinRaZeR 3 months ago
This has been flagged as spam show
check out my new pilatus PC-7 landing
Farmerpilot13 3 months ago
Surely this is an unrealistic test in that an aeroplane of this nature (in fact any aeroplane for that matter) would never have the brakes "down to the metal"!
So why test for something like this which would never be the case? A more realistic test would be to simply perform the test with normal brake linings in place?
JohnMCom 3 months ago
@JohnMCom They want to test a WORST CASE event. If they know the plane can stop even with the brakes are worn down, they know that normal brakes can handle it. If they did it in a normal brake they wouldn't know if the plane can stop with worn out brakes
TheAPerson12 3 months ago
I heart Boeing!
mollydrew 3 months ago
Comment removed
e081194eng 3 months ago
How did the plane stop 700ft earlier than expected, yet, as the engineer at the end says, the deceleration rate was exactly what was expected? Pick one! Either the plane performed as expected or better than expected!
mpaszti 3 months ago
esse aviao é muito lindo, tem q vir para o brazil.
pedroffilho1989 3 months ago
I wonder how much money this costs to perform this? =P
PacmansaavONuTube 3 months ago
Look at the A340 rejected t/o.... it is much less desirable than this.
elcheepo1 3 months ago
@elcheepo1 I know, that's one of the biggest rejected takeoffs I've seen and also one of the best. I couldn't believe how quickly it stopped.
Dallas8844 3 months ago
airbus would've probably exploded and killed everybody
jodstasic 3 months ago
Rejected!!!
labradodlenz 3 months ago
great plane but im a little whoa about the range. on the boeing website, the 747-8I is reported to have a maximum range of 8,000 nmi and the freighter version has a maximum range of 4390 nmi. thats very unusual. the 777-200lr is much smaller but capable of flying over 9,300 nmi. very strange.
Parthenonas14 3 months ago
One more check in the "Awesome" column!
0Heavy0Metal0 3 months ago
@0Heavy0Metal0 definately
yamahonkawazuki 3 months ago
im flying to california in one of these sombody please tell me if this is a great airplane
pimpalicious2000 3 months ago
@pimpalicious2000 its a really good plane
behindthen0thing 3 months ago
@pimpalicious2000 it is. it survived this you'll be fine. get video :)
yamahonkawazuki 3 months ago
I am in love with boeing 747
MarruecosMan 3 months ago
@MikeeDingDong Boeings, not Boeing's. Hehe, IDIOT!!! FUCK HEAD!! I am going to dislike the video just because I know how much it will piss you off. There is nothing you can do to me either :)
matthmatthmatth 4 months ago
Incredible! Hard to think that something that big can fly. I love the 747 and the a380
mr9396 4 months ago
the brakes the brakes the brakes is on fire!!!
lil69crippy 4 months ago
nice bowtie you got there, ms martin.
FrozenFlame333 4 months ago
Those new GENX Engines are massive, almost the power of the GE90, with a slightly smaller Fan. The C5B Glaxy of the USAF flew at over 1 million pounds, using 1/4 of the thrust of the 747-8. It was a Competition between Boeing, and the USAF.... The Air Force took off with Identical Weight as the 747, then took on another 25,000lbs of Fuel via Aerial Refueling, and Landing at that weight.. remember, the C5 has 28 Tires to handle that much load.
KeiYuuki2011 4 months ago
@KeiYuuki2011
The C5B is nowhere near 1,000,000lbs max. takeoff weight and has 4 engines with 43,000lbf each compared to 66,500lbf each on the 747-8. Thats a bit more than 1/4 ;-)
Even the smallest GE90 is more powerful than the strongest GeNX, different engines for different airplanes.
blablubb12345 3 months ago
It CAN take off that heavy... with the old engines, providing it can take off at 830,000 pounds with only 7500' of runway. How do I know... Experience. And for the GenX Engines,you may want to research your information. The GE90-94 originally only specd 90k lbs of thrust, but initially made 91,500. The GEnX ratings in 2009 were a hair under 81k lbs.. that was nearly 4 years ago. Thats not a HUGE difference when testing a brand new engine. GEnX on the 747-8 are rated at 70,000lbs each.
KeiYuuki2011 3 months ago
@KeiYuuki2011 It seems ironic that the 747 passenger aircraft came into being because it LOST the contract to build a heavy lift aircraft for the military. They had spent a fourtune on it and then turned the design into a passenger aircraft. I know I am off on these numbers but I think about 120 C5A's have been built but about 1200 747 passenger planes have been delivered and they are still going. I spent a lot of time flying overseas on business on them and they are still a wonderful aircraft
yamahabradley 3 months ago
That is very interesting! Now test it with full capacity of passenger and cargo at full throttle and then stop!
TempleBear33 4 months ago
@TempleBear33 That's EXACTLY what they simulated
GGsterooz 4 months ago
Captain Kirk Hammet?
Elthehablo 4 months ago
When will the passenger version will come out?
pcmiler2000 4 months ago
No American airlines for me
monkeybolo4231 4 months ago
Humm, I'll have to try this with one of my 13 747's I have, you say I need to land on an interstate hi-way somewhere to perform this test ??
IFLYWINGS 4 months ago
Hey- I did this with the brakes on my car once right down to the rivets, I never did stop either as I passed that hi-way patrolman,,not for 10 miles anyway,, Ahhh who needs brakes anyway ,,,,
IFLYWINGS 4 months ago
I love the way the narrator cuts the guy off at 0:23
jamwithmates123 4 months ago
Catp. Vining is smoking HOT!!:)
Kosmolander 4 months ago
such a great machine
Julman75 4 months ago
Captain Kirk
paco291 4 months ago
This has been flagged as spam show
So, it takes exactly 31 seconds from the time they start applying the rejection to complete stop.
seatgurus 4 months ago
Comment removed
seatgurus 4 months ago
is this a all new 747? if so, when does it enter service?
77magenta 4 months ago
LOL @ the wheels a-smokin' Wow
skink5150 4 months ago
The 747 family just keeps on impressing us yr after yr after yr. Boeing is the best
prohelipilot1 4 months ago
As a Europeam may I say this; FUCK AIRBUS!
Boeing is always best. They are the pioneers of aviaton and everybody loves the Jumbo Jet. Airbus are basically fucling elastic bands!
BRUTUALTRUTH 4 months ago
@BRUTUALTRUTH youve obviously never been in an A380 then
NeedleInTheGroove1 4 months ago
@NeedleInTheGroove1 I have and it is ALL HYPE AND SHITE! Boeing for you my boy!
BRUTUALTRUTH 4 months ago
@BRUTUALTRUTH no you havent
NeedleInTheGroove1 4 months ago
@NeedleInTheGroove1 Realllyyyyyyyyyyyy? Please prove it!
BRUTUALTRUTH 4 months ago
@BRUTUALTRUTH i dont have to lol. You were never on an A380
NeedleInTheGroove1 4 months ago
Captain Kirk, huh? I wonder what my Cam would say...
The777gurl 4 months ago
How long runway for test?
notar1 4 months ago
Take a look at the same test done by airbus on the 340, looks like a joke...but "unpracticalrunway " is right, it should be full
ermollejuo 4 months ago
@ermollejuo
Maybe it looks funny because the plane is so big. It might seem slow while moving but I think its just a visual
trick because of its size.
JeanLucDucard 3 months ago
Captain Kirk!!!!!! Unbelievable!
canihazburger 4 months ago
Yes, I like the 747-8.....
MarcusLeepapi 4 months ago
Later i wanna be a pilot on the 747-8 at Lufthansa . In my opinion the 747-8 looks better than the a380 and looks like its bigger than it.
LH29HY 4 months ago
its boeing, american made, no wonder its an amazing machine. the french can take a hike.
captainsmartass123 4 months ago
i feel sorry for the poor sob that has to change all those tires before moving that thing
daylatedollashort 4 months ago
Boeing produced the best aircrafts that won world war II, and they continue to produce the best dependable aircrafts in the world.
franklindavid 4 months ago
If someone would be kind enough to answer this question for me. I'm near sighted and I was told that F.A.A doesn't except lasik but does except cataract lens replacement. Does anyone have info on this? It would be greatly appreciated.
SeraphimSword 4 months ago
sheven four sheven
Gian092 4 months ago
I'm watching this other doc right now. They said that this Saudi guy had lady friends and his "concierge" I guess you would call him, had to charter a 747 to send "merchandise" she purchased in L.A. back to Saudi Arabia. I had to look up this plane. Unbelievable. A fucking plane like this filled with Gucci and Prada
Moneymarkmathematics 4 months ago
Worst case scenario is 5 minute response time for Crash Rescue? I'm sorry, they don't respond like city boys do. They respond in less than a minute. So that's bullshit.
brdrptrl06 4 months ago
@brdrptrl06 Apparently you have a short attention span. Watch the video again at about the 1:54 mark, and you'll see that the firefighters stood by just watching the plane's tires for a few minutes before they actually sprayed water on the brakes.
IAmOpenMinded 4 months ago