Boeing 787-9 GEnx Run up
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- Опубликовано: 28 дек 2019
- Starting a GEnx-1B after some maintenance, to check everything is doing well.
When the electric starters engage, you can clearly hear the noise of the compressor and airflow, not covered by the noise of the air starter. 
Авто/Мото
Amazing, no pneumatic starters. Just electric! The future is now!
The weight savings from using Carbon Fiber Composite is more than enough to offset the weight of the electric starter generators. And instead of using bleed air to operate the HVAC system, the 787 uses a set of 4 electrically driven air compressors which draw air from directly outside. This arrangement allows the engines to focus more of their energy towards propelling the plane through the air, further enhancing fuel efficiency.
Whenever my parents talk about Generation X (GENX) I think of the 787's engine!
It amazing how fast they can get those up to right rpm
Electric starters :)
@@Ccs4646 I thought they press a button on the flight control to get it running or is that not true
@@laynesouth1198 There is a button. Traditional turbine engines required compressed air to start. Now it uses the electric generators on the sides of the engines to use power from the APU to start the engines by turning the low pressure shaft.
@@Ccs4646 incorrect, they turn the HP shaft as it has no humongous fan attached to it.
I love this and the PW a220 gtf “Wookiee” noises. As a frequent a220 300 flier it always makes me smile
Sounds like the shuttle from Wall-E
Cant beat the sound of the GE90 haha
Great video but this is NOT a run-up, this is just the start. A run-up would mean bringing up the power from idle.
Before first introducing fuel, how do they get N1? Isn’t the starter only connected to the high pressure shaft?
It's correct that the starter only spins the HP shaft in this GEnx engine (and most engines, with the exception of the RR Trent 1000 and Trent 7000 that I know of, which spin the IP shaft); however, the LP shaft spins even before ignition due to the the airflow generated by the rotating HP shaft.
Great video! I hope you can get a video of the new A350's engine startup soon!
Sadly it’s not as good
Bonjour
Ce sont des ge nx 2b/75 chez AF ?
Et si vous traillez dans les réacteurs est-ce que vous pouvez me dire ce qu’est la modification block 4 que ce soit sur un ge nx ou un ge90 (76b au 94b) ?
Sinon vidéo fort sympathique
Bonjour!!!! je parle francais
De quoi tu parles mec ?
How dose the ac unt even work on a plane dose the apu provide acc and heat to the cabin or no
A/C is a system where high powered hot air goes through a bunch of heat exchangers, compressor, turbines and stuff... It is cooled from a couple hundred degrees to a comfortable ambient temperature.
The powered air comes traditionally from the engines/APU, or from electric compressors and the most recent planes. APU and engine do not provide directly A/C, only the power to make it.
Good genx engine. It can fit into 747
Not this one, the 747-8s is smaller as it is the genx-2b
Yeah I didn't mean this one
But why when we are out why didn't we hear a roaring sound of it
@Qatar001 yeah I didn't mean only one engine
@@ethansaviation2672 Yeah but it has the same sound
I just realized it rotates clockwise like RR
They wanted to maintain compatibility with the Trent 1000 so yeah it’s an oddball in that regard
Sounds like my hoover when it's eaten a sock
0:10 It almost sounded like a Trent 1000 engine.
Yeah the sound is kinda the same when starting except the trent 1000 has a louder and long wine
@@ethansaviation2672 agree, I did a Trent 1000 run up last week and was a bit surprised by the loud fuel ignition low deep tone! Did not expect that 😅
0:09
Sound like pw engines..well
Air france?
Seems so
yes it is :)
Yes! Look the "Crevette"
I knew it was Charles de Gaulle from the grass and the blast fence layout and the fedex terminal with the md-11s. All this Straight out of flight sim
0:10 Engine begin to run
The reason why they have to start one engine at a time is because to make sure that engine is warm up before they can start up the second engine
Well kinda but for example the 787 you can start both, most don't because most apu's can't give enough air to get them to both start
yup on the 787 we start both at the same time, unless if its 40 deg C or more, we have to start one at a time.
@@ethansaviation2672 APU'S only provide the electricity need to the compressor in the main engines, I thought?
@@disclaimer6872 Not on all, I think that's only on the 787
Definitely not nearly as awesome as a GE90... but it also wasn’t meant to be.
wow the ps4 slim is quiet
thats not a 787. That was an air start. I am guessing a 777
U really dont know planes dont u
@@eelo216 yeh my bad, was a late night and watching many vids. Got my wires crossed.
@@eelo216 doesn't help that I've never heard my jet start from out side.
From decades flying pneumatic start jets, the electric start of the 78 is so quiet from up the front. So wasn't aware that it was that loud from the ground.
but how much you know about planes?
This isnt a GEnx lol this is a trent 1000
It's a GEnx. Trent 1000 doesn't have the metallic accents on the blades unlike the GEnx, and you might also find out by paying attention to the trojan horse logo.
@Francis Most GE engines like the GE90 do spin counterclockwise, but GEnx does indeed spin clockwise.
No it's the genx
It's general electric
And also that logo is ge not rr