Go Back  PPRuNe Forums > Flight Deck Forums > Rumours & News
Reload this Page >

The Biggest Jet Engines in History Are Finally Ready to Power Boeing's Biggest Plane

Rumours & News Reporting Points that may affect our jobs or lives as professional pilots. Also, items that may be of interest to professional pilots.

The Biggest Jet Engines in History Are Finally Ready to Power Boeing's Biggest Plane

Old 4th Jan 2019, 20:29
  #1 (permalink)  
Thread Starter
 
Join Date: Dec 2018
Location: Area 51
Posts: 25
The Biggest Jet Engines in History Are Finally Ready to Power Boeing's Biggest Plane

Boeing is set to debut its biggest plane ever next month, and the 777X has finally been paired with the gargantuan GE9X engine that will propel its flight.



https://www.popularmechanics.com/fli...x-777x-photos/
FlyXLsa is offline  
Old 4th Jan 2019, 21:09
  #2 (permalink)  
 
Join Date: Jan 2008
Location: Reading, UK
Posts: 10,054
I think we might have known that already.
DaveReidUK is offline  
Old 4th Jan 2019, 21:15
  #3 (permalink)  
 
Join Date: Jul 2013
Location: Everett, WA
Age: 64
Posts: 2,169
Boeing is reportedly planning to roll it out in the next month or two, which I suspect many don't know.
tdracer is offline  
Old 4th Jan 2019, 21:28
  #4 (permalink)  
Thread Starter
 
Join Date: Dec 2018
Location: Area 51
Posts: 25
Originally Posted by DaveReidUK View Post
I think we might have known that already.
Yeah but the PICTURE impressed me.
FlyXLsa is offline  
Old 4th Jan 2019, 21:31
  #5 (permalink)  
 
Join Date: Nov 2018
Location: back out to Grasse
Posts: 67
Ahhh yes, the folding wingtip version

I don't care what the brochure says, that alone will keep me off the jet. At least the 787 gets there, even if it is with a numbum.

IG
Imagegear is online now  
Old 4th Jan 2019, 21:44
  #6 (permalink)  
 
Join Date: Jul 2013
Location: Everett, WA
Age: 64
Posts: 2,169
Originally Posted by Imagegear View Post
Ahhh yes, the folding wingtip version

I don't care what the brochure says, that alone will keep me off the jet. At least the 787 gets there, even if it is with a numbum.

IG
Better stay off those with retractable landing gear and moveable flaps too. You know what deathtraps those have proven to be.
tdracer is offline  
Old 4th Jan 2019, 21:51
  #7 (permalink)  
 
Join Date: Jan 2008
Location: Reading, UK
Posts: 10,054
Originally Posted by tdracer View Post
Better stay off those with retractable landing gear and moveable flaps too. You know what deathtraps those have proven to be.
I think there's a fairly crucial distinction between bits that are intended to move in flight and those that aren't meant to.
DaveReidUK is offline  
Old 4th Jan 2019, 21:59
  #8 (permalink)  
 
Join Date: Jun 2001
Location: Surrounded by aluminum, and the great outdoors
Posts: 3,676
Originally Posted by DaveReidUK View Post
I think there's a fairly crucial distinction between bits that are intended to move in flight and those that aren't meant to.

but these are "meant to be"
ironbutt57 is offline  
Old 4th Jan 2019, 22:12
  #9 (permalink)  
 
Join Date: Jan 2008
Location: Reading, UK
Posts: 10,054
Originally Posted by ironbutt57 View Post
but these are "meant to be"
Yes, but the comparison was between those and folding wingtips, that aren't.

Do try to keep up.
DaveReidUK is offline  
Old 4th Jan 2019, 22:17
  #10 (permalink)  
 
Join Date: Jul 2013
Location: Everett, WA
Age: 64
Posts: 2,169
It's a lot easier to keep things from moving in flight that aren't supposed to move, than to keep things moving in flight from moving when they're not supposed (or moving contrary to how they're supposed to)
tdracer is offline  
Old 4th Jan 2019, 22:39
  #11 (permalink)  
 
Join Date: Oct 2007
Location: A better place.
Posts: 1,509
The SLUF and 'toom flew with wings folded.
The Tomcat could fly with asymmetric sweep.
So even in the event of pilot error, or some type of mechanical failure, surely there's no in flight worries about the new triple 7's last three metres on each side?
I'd be more concerned about the person sitting in Seat 0A forgetting to fold `em coming into the gate, and trading paint with someone or something else.
And no doubt there'd be all sorts of alarms and things to stop that happening...
tartare is offline  
Old 4th Jan 2019, 23:32
  #12 (permalink)  
 
Join Date: May 2010
Location: PNW
Posts: 71
Originally Posted by DaveReidUK View Post
I think there's a fairly crucial distinction between bits that are intended to move in flight and those that aren't meant to.
C'mon, the USN was flying fighters with folding wings off carriers in WW2. I think they've probably worked out the kinks by now!
Photonic is offline  
Old 4th Jan 2019, 23:35
  #13 (permalink)  
 
Join Date: Jan 2011
Location: Seattle
Posts: 618
Originally Posted by Imagegear View Post
Ahhh yes, the folding wingtip version
Folding wings? That's just some sort of crazy science fiction.
EEngr is offline  
Old 4th Jan 2019, 23:51
  #14 (permalink)  
 
Join Date: Jan 2019
Location: Portugal
Posts: 8
Awesome engine, its so big it probably creates lift at certain angles.
Vernand is offline  
Old 5th Jan 2019, 01:09
  #15 (permalink)  
 
Join Date: Oct 2007
Location: A better place.
Posts: 1,509
Don't get too close though...
tartare is offline  
Old 5th Jan 2019, 01:15
  #16 (permalink)  
 
Join Date: Mar 2002
Location: Florida
Posts: 5,008
Originally Posted by Vernand View Post
Awesome engine, its so big it probably creates lift at certain angles.
hope so, it helps to know which way the loads are on the pylon when something breaks
lomapaseo is offline  
Old 5th Jan 2019, 01:15
  #17 (permalink)  
 
Join Date: Mar 2002
Location: Seat 0A
Posts: 7,720
Nice cap...

Originally Posted by Vernand
Awesome engine, its so big it probably creates lift at certain angles.
Ouch!!
Capn Bloggs is offline  
Old 5th Jan 2019, 02:10
  #18 (permalink)  
 
Join Date: Mar 2008
Location: Bangkok
Posts: 44
tandem wing

The folding wingtip thing makes me wonder: will we at some point see large aircraft with tandem wings?

What would be the disadvantages with a forward mounted tandem wing instead of extending the wingspan?

More structural parts needed to mount the wings, more drag, forward wing possibly interfering with airflow to engines at certain AoA, what else...? Any advantages that could make it happen?
kristofera is offline  
Old 5th Jan 2019, 02:46
  #19 (permalink)  
 
Join Date: Jun 2007
Location: deepest darkest recess of your mind
Posts: 994
EEngr. Great picture. What a magnificent machine. I've never seen that photo before. You got any more?
porch monkey is offline  
Old 5th Jan 2019, 04:41
  #20 (permalink)  
 
Join Date: Jun 2008
Location: On the Edge
Posts: 32
Composite fan blades on a metal tube, what will they think of next.
DHC4 is offline  

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.