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787 Impressions

Discussion in 'Aviation Chat' started by Spasso, May 17, 2007.

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  1. BMW.SauberF1Team

    BMW.SauberF1Team F1 World Champ

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    #76 BMW.SauberF1Team, Jun 29, 2007
    Where can I find pictures of a 744 under construction? I vaguely remember seeing video on Discovery of one being made. Fast forwarded of course. :)
     
  2. Der Meister

    Der Meister Formula Junior

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    #77 Der Meister, Jun 30, 2007
    wow those genX's are huge
     
  3. BMW.SauberF1Team

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    #78 BMW.SauberF1Team, Jul 2, 2007
    Less than a week til roll out!!! Spasso is in crunch time right now. :D
     
  4. Bob Parks

    Bob Parks F1 Veteran
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    #79 Bob Parks, Jul 2, 2007
    Spasso is always in crunch on the accelerated cycle of the 777 output where he is a quality contol guru in final assembly.
     
  5. Spasso

    Spasso F1 World Champ

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    #80 Spasso, Jul 2, 2007
    I'm not on the 787 right now. That's in the next bay. I am currently on the 777, a bigger bird. We are rolling one out every 3 days the old fashioned way. No snap together on this one.
    The order book is full for years ahead and we are getting orders for the new 777 Freighter every week.

    Orders are rolling in for the 747-8 Intercontinental and even more so for the 747-8 Freighter


    It's a busy time everywhere in this place. .
     
  6. Spasso

    Spasso F1 World Champ

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    #81 Spasso, Jul 2, 2007
    Actually, I took a look at those engines right before they were installed. These particular ones were drapped in canvas with the words Trent 1000 (Rolls Royce). I thought sure they were using the GE engines first.

    The engines look huge because the fans are much larger than those used on the 767 which is close to the same size as the 787. Four of these same engines will be used on the 747-8 making it even more efficient (and faster) than ever.

    The engines on the 777 are bigger, the biggest. Inlet diameter is 13 feet. That means I can stand inside the engine and reach as high as I can and not touch the top of the inlet.

    Just to give you an idea of the size of 777 engines, a 737 fuselage will slip right through the fan cowl.
     
  7. Spasso

    Spasso F1 World Champ

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    #82 Spasso, Jul 2, 2007
    This information (non-proprietary) was taken from this blog, http://flightblogger.blogspot.com/
    Very informative and has good pictures.



    LN1/ZA001- RR powered and first to fly
    - Major structure assembly is complete and Dreamliner One was brought to the paint shop on the night of June 26. It is expected to remain in the paint shop until around 2pm on 7/8/07.
    - All major structures in Everett
    - Undergoing final assembly, which officially began May 21
    - System software v. 6.5 currently being tested. 6.7 to follow shortly.
    - Will be entering the paint shop around June 25
    - Will be delivered to ANA after refurbishment.
    LN9997/ZY997 - no engines, systems, etc. - Static Test frame, Wing Break Test
    - All sections will be "in house and workable" by July 8.
    - Wing in production in Japan (photo)
    - Section 47 and 48 currently in SC. (photo)
    - Section 43, 45, 44 (photo) /46 currently in SC.
    - Section 41 currently production in KS. (photo, photo 2)
    LN2/ZA002 - RR powered and test flight
    - Section 43 and 11/45 arrived in Charleston on June 28.
    - Section 44 and 46 arrived in Charleston from Italy on June 26.
    - Wing in production in Japan (photo)
    - Section 41 currently production in KS. (photo)
    - Will be delivered to ANA after refurbishment.
    LN9998/ZY998 - No engines, systems, etc. Fatigue test airframe.
    - Section 48 currently in production in SC. (photo)
    LN3/ZA003 - RR powered and test flight
    - Section 41 currently production in KS. (photo)
    - Will be delivered to Northwest after refurbishment.
    LN4/ZA004 - RR powered and test flight
    - Section 41 currently production in KS. (photo, photo 2)
    - Will be delivered to Northwest after refurbishment.
    - Section 41 in production in KS. (photo)
    LN5/ZA005 - GE powered and test flight
    - Section 41 currently production in KS. (photo)
    - Will be delivered to Royal Air Maroc after refurbishment.
    LN6/ZA006 - GE powered and test flight
    - Section 41 currently production in KS. (photo)
    - Will be delivered to Royal Air Maroc after refurbishment.
    LN7/ZA007 - First to be delivered to ANA.
    LN8/ZA008 - First to be delivered to Air China.
     
  8. BMW.SauberF1Team

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    #83 BMW.SauberF1Team, Jul 3, 2007
    Yikes! How do you have time for this forum? :D
     
  9. BMW.SauberF1Team

    BMW.SauberF1Team F1 World Champ

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    #84 BMW.SauberF1Team, Jul 3, 2007
    Last edited by a moderator: Sep 7, 2017
  10. Der Meister

    Der Meister Formula Junior

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    #85 Der Meister, Jul 3, 2007
    Last edited by a moderator: Sep 7, 2017
  11. Bob Parks

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    #86 Bob Parks, Jul 3, 2007
    What we're seeing here is the evolution of the gas turbine where they used to be small diameter, high velocity output . Now they are using the same size gas producer to drive huge fans that move more mass instead of smaller mass at great speed.The greater the mass, the greater the reaction and for not much of an increase in fuel burn. Gas turbines produce huge amounts of torque and it's being used to rotate those big fans.
    Switches
     
  12. Der Meister

    Der Meister Formula Junior

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    #87 Der Meister, Jul 3, 2007
    Indeed N1 is getting bigger but turning at slower speed's, however it accelerates more mass of air. it's more efficient to move a bigger mass of air rather than to accelerate a smaller mass or air. I wonder if we will ever see 3 stage axial flow compressors
     
  13. Spasso

    Spasso F1 World Champ

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    #88 Spasso, Jul 3, 2007
    That looks more like the 115,000 lb thrust 777 engine they were testing a couple of years ago. They could actually fly the 747 on the thrust of that one engine alone.
     
  14. Der Meister

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    #89 Der Meister, Jul 3, 2007
    thats what they said. you might be right about the engine
     
  15. BMW.SauberF1Team

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    #90 BMW.SauberF1Team, Jul 3, 2007
    Could the 747 wings hold four GE90-115B engines? :) What about just two with the other two spots as external fuel tanks? :)
     
  16. Bob Parks

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    #91 Bob Parks, Jul 3, 2007
    That airplane doesn't need any extra fuel capacity unless you want to fly for a week.
     
  17. Spasso

    Spasso F1 World Champ

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    #92 Spasso, Jul 3, 2007
    The 115B engines would be overkill unless an airline would want to do "Viking" departures on every take off.

    Visualize four 787 engines instead. Quite a bit larger than the existing and more than enough power for any load the 747 can carry while using significantly less fuel. That's why the 747-8 freighter is selling so well.
     
  18. BMW.SauberF1Team

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    #93 BMW.SauberF1Team, Jul 6, 2007
    t-minus 48 hours :cool:
     
  19. Spasso

    Spasso F1 World Champ

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    #94 Spasso, Jul 7, 2007
    I saw the 747 LCF "Dreamlifter" take off out of Paine Field on the milk run to Japan to pickup sections for #3. Steep climb at moderate throttle, effortless. Ugly but gets the job done!

    #2 787 is in Final assembly as of a couple of days ago.
     
  20. Der Meister

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    #95 Der Meister, Jul 8, 2007
    good show, i can wait to see it in flight
     
  21. rfking

    rfking Formula Junior

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    #96 rfking, Jul 9, 2007
    Just watched the rollout ceremony on the Boeing website - very well done.

    Can't wait to try it out!
     
  22. Spasso

    Spasso F1 World Champ

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    #97 Spasso, Jul 9, 2007
    With higher cabin pressure and higher humidity it should be much nicer on those long hauls to Europe, Roy :p:p
     
  23. BMW.SauberF1Team

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    #98 BMW.SauberF1Team, Jul 9, 2007
    Nice! I still don't know all the details about the 787. Are today's airliners pressurized to ~10k feet? What will the 787's be?
     
  24. Spasso

    Spasso F1 World Champ

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    #99 Spasso, Jul 9, 2007
    I think today they are pressurized to around 8 or 9k feet. The 787 will be closer to 5k.

    One reason for more humidity is the 787 uses NO HOT bleed air from the engines to supply cabin air. The 787 uses no bleed air for anything adding more economy to it's fuel burn.

    The Environmental Control System will be a stand alone unit that will supply clean, fresh, moist air.
     
  25. Bob Parks

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    #100 Bob Parks, Jul 9, 2007
    Nobody knows that the bleed air off the 14th stage comes in to the AC unit at 450 degrees and has to be cooled, hydrated, then dehydrated and mixed with the cool air coming into the scoops under the wing to body fairing.All kinds of radiators, condensers, centrifugal dehydrators, filters, and mixing valves have to fix the air coming into the cabin to maintain an 8k altitude. It used to be 5k in the old 707.
    Switches
     
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