@Ace They are the Hydraulic demand pumps, used for supplying Flaps, Gear etc. during the need for high hydraulic demand. Such as before T/O and Landing.
This is my dream. Maybe not the job but I have something weird with big, high tech engines and machinery. May I ask what do you love working on the most?
At 0:35 is when N2 reached maybe 25 and the fuel cutoff switch was turn on for both engines 1&2. This is a 787, which is capable of a dual engine start. In case anyone was curious 🤷🏾♂️
We don't put fuel cutoff switches on at a certain n2 during start like in older types. It's overhead start switches to start, fuel control switches to run then leave it to sort itself out.
I always liked watching the preflight control surface check and engine startup, it’s pretty cool how all that stuff works. Sucked when they did the safety brief during it
Amazing sounds love the engines start up Always gives me a buzz love flying looking forward to fly On the tui Dreamliner 787 next year to punta Cana from Manchester flying In premium class so excited
I flew the QF787 PER - MEL earlier 2023. Seated 12K. Yes business class... I was absolutely amazed that the whole aircraft began to vibrate in resonance with the engines spooling up. They are some serious propulsion units. Then the flaps rolled out... It was a magnificent flight.... At 41 000 feet, my Jack Daniels barely rippled...
Hi Joy. I have little knowledge on the matter, so I looked at other videos. A reply to a comment to another video says they are the hydraulic pumps here: ua-cam.com/video/QAfk5ZlQNfs/v-deo.html&lc=z12ke5xxvof0c5ed522ttxsjtprlztnca In TheFlyingSpanner1's video titled Boeing 787-8 Dreamliner Push Back & Start, you can hear two of them starting up here: ua-cam.com/video/lbR80J8zmLg/v-deo.htmlm50s
@@samypons3185 because the 777 uses bleed air to start like most conventional jets. The 787 uses electric starter motors as it doesn't use a conventional bleed air system.
![MUST HEAR!!! Boeing 707 Takeoff: Four JT3D turbofan engines giving their best & loudest! [AirClips]](http://i.ytimg.com/vi/EI3owgIj6zs/mqdefault.jpg)
The 787/777 have serious hydraulics and Boeing is not ashamed to let everyone know they're working, Love It!!
LSp8 it sounds amazing
The 777 has a bit quieter flaps
The A220, or originally Bombardier C-series also had some loud hydraulics!
@@dehavillandcanadatwinotter9621 I never knew they were mechanically kin.
love the overwing hydraulic sounds 1:27 is the best part...
@Aviation Ace The flaps start later at 1:54
@Ace They are the Hydraulic demand pumps, used for supplying Flaps, Gear etc. during the need for high hydraulic demand. Such as before T/O and Landing.
Well I was listening to this on huge speakers and my desk started vibrating I looked around to realize I was at home.
Haha. Awesome.
My floors vibrating through speakers
@DarksdripV2 dagalindo JAL. Flight 65.
I work on the 787 a lot & this is my favourite sound for sure 😍😍
This is my dream.
Maybe not the job but I have something weird with big, high tech engines and machinery.
May I ask what do you love working on the most?
And I love the sound of the Airbus❤
me，too
Every 787 Dreamliner I have boarded had this hydraulic sound.
0:39 that growl though
I was on a 787 and the engine start up is fantastic
That feeling through the floor. We're about to go flying :D
At 0:35 is when N2 reached maybe 25 and the fuel cutoff switch was turn on for both engines 1&2. This is a 787, which is capable of a dual engine start. In case anyone was curious 🤷🏾♂️
We don't put fuel cutoff switches on at a certain n2 during start like in older types. It's overhead start switches to start, fuel control switches to run then leave it to sort itself out.
I worked at El Dorado Airport in Bogotá and the thing i miss the most is the sound of the 787 engines firing up. Thanks for the video.
best sound ever!
Lovely engine sound, like the Millenium Falcon!! 😍😍😍😍
OMGosh those 787’s make some amazing noises!
Wow this in headphones is incredible
I always liked watching the preflight control surface check and engine startup, it’s pretty cool how all that stuff works. Sucked when they did the safety brief during it
Absolutely love this
Amazing sounds love the engines start up
Always gives me a buzz love flying looking forward to fly
On the tui Dreamliner 787 next year to punta Cana from Manchester flying
In premium class so excited
So.... Raw.. So... Perfect
Sounds so good
I flew the QF787 PER - MEL earlier 2023. Seated 12K. Yes business class... I was absolutely amazed that the whole aircraft began to vibrate in resonance with the engines spooling up. They are some serious propulsion units. Then the flaps rolled out... It was a magnificent flight.... At 41 000 feet, my Jack Daniels barely rippled...
1:26 ptu sounds like Federal Signal Modulator siren
Its Flaps
No it’s just one of the electric hydraulic pumps coming on to it’s high power mode
@@techlover4500 Flaps is at 1:56 :)
Agreed
I hate to say, but that was the HYDRAULIC system that sounded like the Federal Signal Modulator *electronic* warning siren.
is the best video of de 787
The fact that i knew exactly where this plane was and going just from the thumbnail. MCRD SD, and JAL is the only 787 operator that goes to SD
I like it when the plane ✈️ moved straight
That sounds fantastic but really loud
Of the newer engines the GEnx sounds the best!
It sounds exactly like the GE90 during startup except the GE90 vibrations
I like the GEnx Engine Start of the Boeing 787-8.
I would love to be on a flight with an engine that sounded like this!
I was
the sound of 77,000 horsepower
Wow even makes my phone vibrate
0:35 Fuel gets injected
1:53
Genx ?
I heard it real
it's quieter than you not think
2:52 do you know what that alternating high-frequency noise was when the plane started to move?
its the hydraulic pumps :D it starts at 1:26
@@hotshot4512 He's reffering to the one at 2:52
Is that the hydraulics or something else?
@@eljyatca8 yes, that is still the sound of hydraulics that starts at 1:26 and continues for a while
he's talking about the very faint hum that is more high-pitched than the hydraulics
Blimey, wonder what mic was used to record this?
It was just my cell phone. Samsung Galaxy S6, at the time I think. Terrible quality.
@@tredunlimited in comparison to a studio mic maybe. but as far as phone mics go, its top notch even by todays standards. see my comment above lol
Rolls Royce engine sound is the best
It's genx
both of u r correct
GEnx sounds like GE90 startup
1:26 787 flaps
Hydraulics*
thats the over wing hydraulics to POWER the flaps! you were close though!
Which thing is activated / ignited ,& responsible for transition of sound between 1:26- 1:30 ????
Hi Joy. I have little knowledge on the matter, so I looked at other videos. A reply to a comment to another video says they are the hydraulic pumps here: ua-cam.com/video/QAfk5ZlQNfs/v-deo.html&lc=z12ke5xxvof0c5ed522ttxsjtprlztnca
In TheFlyingSpanner1's video titled Boeing 787-8 Dreamliner Push Back & Start, you can hear two of them starting up here: ua-cam.com/video/lbR80J8zmLg/v-deo.htmlm50s
Thanks :B-)
Joy Singh AC motor hydraulic pumps. They are a lot noisier than the AC motor hydraulic pumps on the other Boeing planes.
Hydraulic pump
It's the flaps
Well, if it wasn't for the hydraulic boost pumps running, you'd hear the engine start, and run better.
what version of 787 is it? -8 -9?
Japan Airlines always has a 787-8 to San Diego.
It sounds like a printer from the 90s getting ready to take off
0:10 it’s a fucking cafee machine jeez
I was on a flight to boston and when the hydroelectric pump started someone’s kid cried
The 787 has a similar startup to the 777
Although the 777’s engines cannot be starting simultaneously
@@DGaming1K23 oh , why ?
@@samypons3185 im not sure
@@samypons3185 The 777 has more powerful engines than the 787
@@samypons3185 because the 777 uses bleed air to start like most conventional jets. The 787 uses electric starter motors as it doesn't use a conventional bleed air system.
What kind of brand of airplane is this
Boeing 787-8
I didn't mean the model but the what's written on it but it's just 787-8
@@thiernoba3388 ???
@@artiga15208 no steps airlines or there's no company
@@thiernoba3388 JAPAN AIRLINES! READ THE FUCKING DESCRIPTION!
Just as loud as a GE90
wheres the PTU
this is a 787, no ptu here! ln only in airbus aircrafts!
something from a spaceship.
very normal sound 1:28
0:22
I was meditating until I heard 1:04
Ruined it 😤
then the sneeze 🤧 👀 lmaaaaao
flykutos 787 startup lol, anyways hi billy its yoco
@@yoco6110 hii yoco
@@yoco6110 hi
@@billy98384 hi billy
2:40 lag
and I though the 777 was the king
@Anthony Ayson I know, but I don't think I've heard such an amazing engine start
GEnx
1:24 GEnx Engines Go Higher in A Major
So creepy!
i don't think so
You misspelled epic.
1:53
Sound of flaps
@@Hypothesis620 cool