I'm not the uploader of the video, but I am an engineer at a company that trains the people who do the work seen on the video, so I will try and answer some of the questions the commenters keep asking: Q. Why was it changed? A. When an engine reaches a point where it needs some significant maintenance work (such as an overhaul), it makes more sense to swap it for a new engine than doing the work with the engine on-wing. That way, after just a 6-hour engine-swap, the plane is ready to resume flying and earning revenue, and meanwhile you can carry out the repair work on the engine comfortably in the hangar over a period of several weeks (or ship out parts to have the work done in specialist facilities). Q. Just 6 hours? It would take much longer to change a car engine! A. Aircraft engines are designed to be swapped. They are exposed on all sides (except the top in this case) and mounted to the structure by very few bolts (typically on business jets it's just 2 mounts - forward and aft. May be more on the 777 but at any rate not much mechanical complexity). All the connections between engine and aircraft (fuel, electrical power, bleed air, hydraulic power and electrical control and sensor signals) pass through a firewall in the engine pylon where they are easily accessible for disconnection. Q. How fast does it spin at takeoff? A. Assuming the engines in the video are Rolls Royce Trent 800s (93,400 lb. max thrust), you're looking at a 3-spool engine (N1, N2 and N3). The RPM at full power would be: - 3,000 rpm for the low pressure system (including the big fan at the front) [N1] - 7,500 rpm for the intermediate pressure compressors and turbines [N2] - 10,000 rpm for the high pressure compressors and turbines [N3]
+LMF5000 Those must be some strong mounts and bolts being able to hold 15000 pounds and all the thrust. On the DC10 the anchor point looks weak and as if the motor will break off at any moment.
+dbza They are just strong enough to take the weight of the engine, the thrust loads, extra loads induced by maneuvers or turbulence, and a good safety margin on top of all that. The reason they make the mounts relatively weak (actually, the bolts are the weak point - they are deliberately designed to shear at a pre-determined force) is so that in an emergency where the engine is impacted hard, the forces will rip the engines cleanly off the wings rather than putting that huge stress on the entire wing structure and potentially breaking something more important.
+gearhead996 Quite unlikely. Since a plane that's been flying for a few years will have two engines with very different histories (due to the factors mentioned in my answers above), they will have a very different number of flight hours each, so they'll probably be taken off the wings one at a time when their individual time is up.
All the credits to the mechanics! Our lives depend on their skills and motivation. These big aircrafts are the pearls and diamonds of modern engineering. Although an old video, it was nice to watch!
Aviation world is absolutely fascinating. I've got so much admiration and respect for all those involved in this industry that literally changed the world. Thanks for sharing the video.
I loved the impending lightning storm in the background at the beginning of the video. It really tied in nicely with the deadline nature of airliner repair schedules.
What's amazing is that jet engines are so finely balanced, that just having a gentle breeze blowing through them is enough to make them windmill as seen here.
Well done! Thank you also for the information.Fun seeing the fans spinning from breezes blowing through them.Nice seeing lightning! Would be nice to have a clock in view.Neat vacuum vortexes!
I replaced a engine in my ford ranger in under a hour kind of had to get it done quickly because the place I lived in was having a inspection the engine I had to replace was a 350 small block Chevy V8 I’ve replaced many engines including a engine in a Peter built rig
@@hammerdragon4321 that ain't nothing..my wife had to change her uterus under 15 mins because I boxed it all up the surgeons hands weren't trembling or nothing like that
I worked on a crew that removed a B727 side engine in 20 minutes from the time the aircraft was parked. The wide body aircraft the removal and installation was less than one 8 hour shift to get it ready for test run. It’s not that difficult or complex to replace an engine. Simpler than a car engine change.
When I saw the engine cowling being carried over to the other engine, I thought those guys are REALLY strong and then I spotted the overhead hoist doing the work.
it's a time lapse, so it appears to be spinning fast. In reality, it probably is spinning because of the wind since it's idle and freely able to spin too.
It's a time lapse of a freewheeling engine, so... That's why it moves very fast in the video, changing aircraft engines must be very long and very careful, don't just lie it does spin without a plane operating the engine... One thing about it they're spinning by the wind that blows, caused by the storm outside at the beginning of the video at night time. if you see in the video.
My mechanics told me to leave my girlfried 1 litre engine Toyota Yaris car for a week at the garage to change the engine, after one week they need more time, it has been 2 weeks now... Boeing could have changed 56 engines of the 777 in that time....I should have bought my girlfriend a boeing instead of the Toyota Yaris.
Yes indeed, I was told that it took 11 hours to remove and replace the engine in my Toyota Crown back in 1977, then it had to be road run and tested again for two hours to quote, 'Iron out any bugs'! and the costs, I could have bought a new car today for that.
gotta love QEC's... gone are the days where it takes a couple of days to change an engine becasue you have to re-connect and re-rig the controls.... a few plugs in the firewall/pylon and 3 or 4 bolts to hold the engine on and its ready to go (after an engine test run of course)... fantastic video!!!
If only you had access to what is basically the sum total of human knowledge, made easily searchable by a company's search engine product who, conveniently, run a huge video sharing platform where people could come to watch videos about aircraft engine changes... How amazing would that be?! You would never need to ask another human a question again
They didn't properly attach one of the engines, which lead to the planes engine falling off at take off. The plane crashed taking with it 273 lives (2 on the ground)
It makes one proud to be British , Good old Rolls Royce, when flying and you look out the window , the Rolls Royce badge on the Engine cowlings always gives me confidence in a safe Aircraft.
@@justsaltandthatsit8919 Its been so long ive known this video for so many years it was my childhood... im still trying to this day to find the song. we may never know..
I came here just to watch how they changed an engine, but you guys also gave some interesting information... Aircraft are just such beautiful machines, the dream of flight realized. so thank you very much for tat awesome video.
Boeing 777-200/200ER and 777-300(non ER) has 3 engine option Pratt and Whitney 4000 Roll Royce Trent 800 GE 90 (never use on 300(non ER) mean while on 777-300ER, 777-200LR and 777F the only engine option is GE90
Very interesting video, thanks! For me, the best part starts at 4:14 (what a soundtrack!), followed by an awesome spool-up at 4:20. God i LOVE these Trent 895 roars!
I've learned this just a few weeks ago - When the blades are moving at high revolutions the white swirl makes it looks like a large eye that makes birds avoid.
Amazing bit of engineering both in the engine and the mounting and connection points to allow this in 6 hours. I remember at the Reno Air Races a Blue Angel F18 needed an engine change - it couldn't have been more than an hour - probably more like 30-45 minutes. I remember at Boeing Field GE would charter a Russian Transport to bring these engines out. Imagine the metallurgy of those turbine blades - 14 feet in diameter and 3300 rpm. Amazing.
Even after 13 yrs i'm still liking this vid
Same
Same
I'm not the uploader of the video, but I am an engineer at a company that trains the people who do the work seen on the video, so I will try and answer some of the questions the commenters keep asking:
Q. Why was it changed?
A. When an engine reaches a point where it needs some significant maintenance work (such as an overhaul), it makes more sense to swap it for a new engine than doing the work with the engine on-wing. That way, after just a 6-hour engine-swap, the plane is ready to resume flying and earning revenue, and meanwhile you can carry out the repair work on the engine comfortably in the hangar over a period of several weeks (or ship out parts to have the work done in specialist facilities).
Q. Just 6 hours? It would take much longer to change a car engine!
A. Aircraft engines are designed to be swapped. They are exposed on all sides (except the top in this case) and mounted to the structure by very few bolts (typically on business jets it's just 2 mounts - forward and aft. May be more on the 777 but at any rate not much mechanical complexity). All the connections between engine and aircraft (fuel, electrical power, bleed air, hydraulic power and electrical control and sensor signals) pass through a firewall in the engine pylon where they are easily accessible for disconnection.
Q. How fast does it spin at takeoff?
A. Assuming the engines in the video are Rolls Royce Trent 800s (93,400 lb. max thrust), you're looking at a 3-spool engine (N1, N2 and N3). The RPM at full power would be:
- 3,000 rpm for the low pressure system (including the big fan at the front) [N1]
- 7,500 rpm for the intermediate pressure compressors and turbines [N2]
- 10,000 rpm for the high pressure compressors and turbines [N3]
+LMF5000 Those must be some strong mounts and bolts being able to hold 15000 pounds and all the thrust. On the DC10 the anchor point looks weak and as if the motor will break off at any moment.
+dbza They are just strong enough to take the weight of the engine, the thrust loads, extra loads induced by maneuvers or turbulence, and a good safety margin on top of all that.
The reason they make the mounts relatively weak (actually, the bolts are the weak point - they are deliberately designed to shear at a pre-determined force) is so that in an emergency where the engine is impacted hard, the forces will rip the engines cleanly off the wings rather than putting that huge stress on the entire wing structure and potentially breaking something more important.
LMF5000 That makes sense! The testing that must go to find the right combination must be intense. No wonder these planes cost millions.
+LMF5000 Are both engines swapped at the same time? Thanks for the answers above.
+gearhead996 Quite unlikely. Since a plane that's been flying for a few years will have two engines with very different histories (due to the factors mentioned in my answers above), they will have a very different number of flight hours each, so they'll probably be taken off the wings one at a time when their individual time is up.
All the credits to the mechanics! Our lives depend on their skills and motivation. These big aircrafts are the pearls and diamonds of modern engineering. Although an old video, it was nice to watch!
Thank you for the recognition 😃
hulkari thank you
What about the designers and engineers?
Andpilots?
@@ACERASPIRE1 pilots barely needs training and are just there to watch the autopilot do their thing.
Love the lightning in the background
Its still one of the best plane videos
Does anyone know the aircraft registration/tail number?
Aviation world is absolutely fascinating. I've got so much admiration and respect for all those involved in this industry that literally changed the world. Thanks for sharing the video.
Beautiful piece of precision engineering that Rolls
Royce
Glad to see AA is not removing the pylon with the engine and using a fork lift anymore.
Scott Mayfield That would be the one. AA attacked a trailer park that day as well!
dengate6 Yeah, but uhh, this was videotaped. :)
William J. Taylor
...or non-taped, but still video recorded.
FrozenSquirrel
FrozenSquirrel LOL
Changing as large and complex a component as a jet engine in only 6 hours is very impressive.
And it takes about 6 hours just to REMOVE a car engine.
What a cool vid. Thanks for posting!
einfach nur fantastisch... die kraft, die technik, die komplexität des aufbau´s (welche in jedem triebwerk steckt)... einfach nur atemberaubend
What a great video.. really enjoyed watching it...and the back ground music too is super... thanks so much for sharing...!!
Cool Soundtrack
and nice ENGINE SOUND👍👍👍👍👍✈✈✈✈✈
I loved the impending lightning storm in the background at the beginning of the video. It really tied in nicely with the deadline nature of airliner repair schedules.
Selected as the Lubbock Composite Squadron's (Civil Air Patrol) Cadet Video of the Week. Thanks for posting this video.
if only we had a good soul on here who told us that music, catchy and beautiful in my opinion anyway
wow the shot of them working with the lightning is simply breathtaking
+F35JSF1 Really? are you scared of the Lightning?
I Agree, it's a shame they closed the hanger door, very beautiful.
Truly beautiful, if I was a worker for the night shift I would wish for every night to be lightning storms for background noise to work with
True that.
yea
this is a great video.. love to see how the wind makes the both engines come alive in the timelapse!!! ;)
What's amazing is that jet engines are so finely balanced, that just having a gentle breeze blowing through them is enough to make them windmill as seen here.
Well done! Thank you also for the information.Fun seeing the fans spinning from breezes blowing through them.Nice seeing lightning! Would be nice to have a clock in view.Neat vacuum vortexes!
Robert Gift
Nice Soundtrack
Never heard it before
love the engine sounds at the end sound amazing
Awesome video, one of my favorites! Great music too..
SIX HOURS!!?? Dude, at top speed, with help, I couldn't do a full engine swap in my Accord in that much time. Masters at work, that's for sure.
Engine change in an acccoed 4 hours max
Wow they changed a whole jet engine in 6 hrs and I cant even finish my homework in 8.
masso172 brain operation
masso172 You need 8 entire hours for your homework?!?! That's how much I sleep a night
Daniel Dankers yep on a good day it's 8 hours lol.. that's how we engineers do it 😣
masso172 Lol that must be veeery hard literally spending 1/3th of a day every day on homework
@@Koploper770
Great video. Love the part with the lighting in the background.
wowwow
5 stars.. thankx for posting. first time i saw an engine change.
Thankx for putting in youtube mate.
THE LIGHTNING STORM ⛈ AT THE BEGINNING WAS AWESOME!!
6 hours is pretty impressive, I think it would take me 6 weeks just to figure out how to change a car engine lol.
It would take me 6 years trying to replace a battery for my Xbox controller
John Lebesis because they are Americans
I replaced a engine in my ford ranger in under a hour kind of had to get it done quickly because the place I lived in was having a inspection the engine I had to replace was a 350 small block Chevy V8 I’ve replaced many engines including a engine in a Peter built rig
@@hammerdragon4321 that ain't nothing..my wife had to change her uterus under 15 mins because I boxed it all up the surgeons hands weren't trembling or nothing like that
I worked on a crew that removed a B727 side engine in 20 minutes from the time the aircraft was parked. The wide body aircraft the removal and installation was less than one 8 hour shift to get it ready for test run. It’s not that difficult or complex to replace an engine. Simpler than a car engine change.
that was a great video man! best ive seen in a while
2018 and I still love this video
Fantastic that they can do it all in less than 5 minutes.
best comment of the year hahahahhahaha
When I saw the engine cowling being carried over to the other engine, I thought those guys are REALLY strong and then I spotted the overhead hoist doing the work.
Awesome lightning strikes in the background during the beginning.
Just got off a 737-800 today, awesome flight
old nice time lapse vid complete with relaxing tune I do appreciate work that this, Thx
This is my childhood video lol
Same here
@@nitincharles6773 Same, I was a kid when this got published, it's always nostalgic to watch this
why does the replacement engine spin?
it's a time lapse, so it appears to be spinning fast. In reality, it probably is spinning because of the wind since it's idle and freely able to spin too.
It’s windvaning
They also have very expensively made bearings in them. You could put a house box fan in front and spin them.
It's a time lapse of a freewheeling engine, so... That's why it moves very fast in the video, changing aircraft engines must be very long and very careful, don't just lie it does spin without a plane operating the engine... One thing about it they're spinning by the wind that blows, caused by the storm outside at the beginning of the video at night time. if you see in the video.
@@alanchacko1676 my real explaining is here. You can look what I say
that was the greatest video i've ever watched it was simply amazing,loved the sound of those TRENT800 engines on this beautiful 777.
5 stars! This is awesome. Adding the lightning and rain outside made it more interesting.
Now this is what I call 4K HD Graphics
the song!
The most reliable engines on the most reliable plane ever built! Thanks for sharing this video!
Love the lighting in the background!
I love airplanes
My mechanics told me to leave my girlfried 1 litre engine Toyota Yaris car for a week at the garage to change the engine, after one week they need more time, it has been 2 weeks now... Boeing could have changed 56 engines of the 777 in that time....I should have bought my girlfriend a boeing instead of the Toyota Yaris.
Yes indeed, I was told that it took 11 hours to remove and replace the engine in my Toyota Crown back in 1977, then it had to be road run and tested again for two hours to quote, 'Iron out any bugs'! and the costs, I could have bought a new car today for that.
Totally miss read this the first time.... "my mechanics told me to leave my girlfriend...."
Admiration to your system of optimization of labor! ! ! From Russia with Love; )
lot's of work!!!! thanx for the video
what is the name of the audio track please?
how much oil do they take?
23 qts
the pilot should keep a dashcam on the whole time on his 777, you never know if these cats take it for a joy ride.
Beautiful video thanks for posting!! :))
i liked the mini tornado that was created on the ground during the final test. pretty cool stuff!
that's what i will do in the future.
Fantastic music! Does anyone know composer of the soudtrack? email me please!
very cool video
and some pretty cool random facts too
thanks for sharing
gotta love QEC's... gone are the days where it takes a couple of days to change an engine becasue you have to re-connect and re-rig the controls.... a few plugs in the firewall/pylon and 3 or 4 bolts to hold the engine on and its ready to go (after an engine test run of course)... fantastic video!!!
It took six hours to change the engine in a Boeing 777, how long could it take for an Airbus A380? Just imagine!!
well, if it is only about the size, a380 engine change would be even faster
an147
an147 55 hours maybe?
Song?
Love the lightening in the background at 1.05
I’ve always had an obsession with aircraft and spacecraft and i will do a job like this in the future
Does anyone know the name of the song? Thanks!
I bet the American Airlines mechanics don't take any shortcuts, especially after flight 191 in Chicago.
What happened with flight 191 in Chicago?
If only you had access to what is basically the sum total of human knowledge, made easily searchable by a company's search engine product who, conveniently, run a huge video sharing platform where people could come to watch videos about aircraft engine changes... How amazing would that be?! You would never need to ask another human a question again
They didn't properly attach one of the engines, which lead to the planes engine falling off at take off. The plane crashed taking with it 273 lives (2 on the ground)
i know that for sure...
The oil that was lost made the wing unstable for takeoff leading to the roll
Thomas Castellanos-Arroyo You mean the hydraulic fluid? Also some of the slats retracted as of a result of the loss of the engine,
lovin that hardwork
It makes one proud to be British , Good old Rolls Royce, when flying and you look out the window , the Rolls Royce badge on the Engine cowlings always gives me confidence in a safe Aircraft.
name of music please
They work faster then lightning. L😅L
fantastic hope this type of equipment and tools would have been available to us too
best of luck to your team
Amazing vid, Pretty cool with the lightning in the back ground though 1:03
Song name ? :)
TheDragonFlyer Aviation bro I’m asking the same too I hope somebody responds
@@justsaltandthatsit8919 Its been so long ive known this video for so many years it was my childhood... im still trying to this day to find the song. we may never know..
@@TheDragonFlyerAviation it’s not a big deal
@@TheDragonFlyerAviation it’s only a song. That’s it. I hope you enjoy your days
so we meet again 240P!
Well it was made in 2007.
how bout it!!
@@sup209 And even past 2000 TVs in Europe had 720x576
Wow that lightning on the background is amazing
nielso games
LOL, you don't get average lightning like that in your "neck of the woods"?
I came here just to watch how they changed an engine, but you guys also gave some interesting information... Aircraft are just such beautiful machines, the dream of flight realized. so thank you very much for tat awesome video.
Rolls royce engine on a 777? Weird.
Thats boeing 777-200er. Not 777-300ER. The 777-300er uses ge90 but 777-200er uses rolls royce.
The
+David Christmas ge90
Boeing 777-200/200ER and 777-300(non ER) has 3 engine option
Pratt and Whitney 4000
Roll Royce Trent 800
GE 90 (never use on 300(non ER)
mean while on 777-300ER, 777-200LR and 777F the only engine option is GE90
Hehethgur
Put a fucking big block in there!
do not need to
that IS a BIG BLOCK!!!
awesome bit of kit, great clip too
nice vid i appreciate it
keep up d gud wrk man
i just love the 777 i cant live without it
Great video... love it !!
It looks very nice!
thank you for telling me...and yea i love airplanes and is so cool how everything is done
Cool Engine spin and the tools
Ya, you don't use a set of Snap-On wrenches to replace one of those bad boys lol.
beautiful video CFU/LGKR
Very interesting video, thanks! For me, the best part starts at 4:14 (what a soundtrack!), followed by an awesome spool-up at 4:20. God i LOVE these Trent 895 roars!
Daaaaamn!!!!! very nice and realy awesome video...
Cant belive they did it only in 6 hours. incredibly fast!!!!!!!
Outstanding job!!!
Wow!! This is really interesting because I didn't know you could do that!!
I can feel this music and video!
Wow! 6 hours! Awesome! Makes a lot of sense.
Fascinating video. Thanks for posting it.
-jcr
Very interesting video! I always wondered how they were replaced!...Thanks!
Nice video. It is a major job
Why the absolute heck am I here when it is so old that I was a toddler when it got published,wait doing the math I was only in pre elementary lol.
Same here, I saw this video way back in preschool, this just makes me go back to memory lane.
I watched the video a second time and i just noticed how they tow the aircraft into the hanger. The tug is under the fusalage. That awesome!
10 stars, great video
Great video.
6 hours? that is pretty impressive!
This video gives me nostalgia 😢
I've learned this just a few weeks ago - When the blades are moving at high revolutions the white swirl makes it looks like a large eye that makes birds avoid.
top video . great music too
Amazing bit of engineering both in the engine and the mounting and connection points to allow this in 6 hours. I remember at the Reno Air Races a Blue Angel F18 needed an engine change - it couldn't have been more than an hour - probably more like 30-45 minutes.
I remember at Boeing Field GE would charter a Russian Transport to bring these engines out.
Imagine the metallurgy of those turbine blades - 14 feet in diameter and 3300 rpm.
Amazing.