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This topic is in the Aircraft Projects discussion forum.  (rss)


Trip to Paine Field: Two Boeing 747 DreamLifters




Topic started on 20-8-2009 @ 05:41 PM by FredT


We just got back from Seattle and of course we visited Paine Field which is where all Boeing planes undergo thier fist flight and is the site for primary assembly of many of its aircraft. Whats interesting is the field is not owned by Boeing but is a municipal field. So while we were there the 747 Dreamlifter held on the taxiway while a Cessna landed Not only was one parked on the tarmac another was being pushed into place on the runway to take



One of the Dreamlifters sitting on the Paine field runway


Same shot trying to get the serial number but clearly my little Nikon 7900 was taxed.


The second DreamLifter was actually tractored onto the runway and then pushed to the very end of the runway before it started engines and took off. I suspect its turning ability is pretty poor? and it needs alot of the runway for sure. I assume its empty when its lifting off at Paine.


Once it uploaded I will post the clip I shot of it taking off.



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reply posted on 20-8-2009 @ 06:16 PM by Now_Then


That's a cool aircraft - I just had to wiki it cos I knew nothing about it - I liked the sentance "It is much more economical for Boeing to buy used 747s and convert them than to construct these planes from scratch."

I suppose that makes sense - must be a bit strange though, the guys from Boeing turning up and saying 'can we buy our plane back please?' lol

[edit on 20/8/2009 by Now_Then]



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reply posted on 20-8-2009 @ 06:24 PM by weedwhacker


reply to post by FredT



Here's some info for ya, FredT.


747 LCF compared to 747-400



YouTube Link



I have something else to add, brb.....
_________________________________________________



[edit on 20 August 2009 by weedwhacker]



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reply posted on 20-8-2009 @ 06:46 PM by weedwhacker


Originally posted by FredT

The second DreamLifter was actually tractored onto the runway and then pushed to the very end of the runway before it started engines and took off. I suspect its turning ability is pretty poor? and it needs alot of the runway for sure.


Here is the Airport Diagram to show the taxiway configuration.

Looks like some corner fillets are missing, so it's just easier to tug the airplane. It's turn radius is the same, as the gear configuration is the key there. I would guess it was heavy for some reason, likely fuel for a long trip.


...assume its empty when its lifting off at Paine.


Probably no cargo/payload, yes.


{btw....I really abhor the "word" tarmac! I know, it's in the lexicon, but since it is actually a composite of "tarred macadam", and MOST airport surfaces are concrete...well, it's just a pet peeve, guess we all have sumthin'!!}

Hope you enjoyed your holiday here in the former colony!!!

[edit on 20 August 2009 by weedwhacker]



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reply posted on 21-8-2009 @ 12:38 AM by FredT


The takeoff as promised


YouTube Link



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reply posted on 21-8-2009 @ 01:24 AM by Harlequin


did you know boeing do not actually convert them to dreamlifter either?

thats done by Evergreen Aviation Technologies Corporation in Taiwan after being designed in moscow



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reply posted on 22-8-2009 @ 12:40 PM by FredT


reply to post by Harlequin



I did actually. Boeing has become an assembler these days. Create the concept then farm out the logistics, design, and assembly. Im betting it was much cheaper to do this this way than in house.



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reply posted on 22-8-2009 @ 12:51 PM by Silk


Sorry but that is one ugly bird! And I thought the superguppy was bad enough. Still im sure it does a good job.

Edited to add :

It reminds me of the Shuttle hybrid that featured in Deep Impact

[edit on 22-8-2009 by Silk]



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reply posted on 22-8-2009 @ 01:40 PM by Harlequin


reply to post by FredT



except that as the 787 is showing - proof of concept does not mean the idea actually works



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reply posted on 22-8-2009 @ 01:45 PM by firepilot


Originally posted by FredT
reply to post by Harlequin



I did actually. Boeing has become an assembler these days. Create the concept then farm out the logistics, design, and assembly. Im betting it was much cheaper to do this this way than in house.


Not sure if it results in being any cheaper, it actually causes a lot of delays and problems when major components are not made in house. However, when dealing other other countries, often it is neccessary to contract out some of the work, to get international sales from those countries.



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reply posted on 22-8-2009 @ 02:48 PM by weedwhacker


reply to post by Harlequin



I will humbly disagree with you, Harlequin, here because it is quite different to simply modify an existing design, than to design an entirely new airplane from the "ground up", as the saying goes!


[edit on 22 August 2009 by weedwhacker]



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reply posted on 22-8-2009 @ 03:06 PM by Advancedboy


Most of the engineering of the Dreamlifter was actually outsourced to Russia, moscow, where about 100 russian engineers worked on it.



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reply posted on 23-8-2009 @ 11:15 AM by Harlequin


reply to post by weedwhacker



read a blog from boeing which explains why they didn`t do the work themselves - and its quite sound really:

to build the dreamlifter as a manufacturer they would have to build it from new, which would require would require them to certify a new aircraft type , build prototypes , crash test , destruction tests etc etc - all for a few aircraft;


so by outsourcing to a seperate company to convert the airctaft they can skip the entire `new build` process as its a special conversion of an existing aircraft



still - doesn`t help the debacle called the 787

[edit on 23/8/09 by Harlequin]



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reply posted on 23-8-2009 @ 11:37 AM by RichardPrice


Originally posted by Harlequin
reply to post by weedwhacker



read a blog from boeing which explains why they didn`t do the work themselves - and its quite sound really:

to build the dreamlifter as a manufacturer they would have to build it from new, which would require would require them to certify a new aircraft type , build prototypes , crash test , destruction tests etc etc - all for a few aircraft;


so by outsourcing to a seperate company to convert the airctaft they can skip the entire `new build` process as its a special conversion of an existing aircraft




Sorry, thats utter crap.

The Dreamlifter variant would require no more certification newbuild than it did as a conversion - there is no difference in the eyes of the FAA, conversions do not get free passes.

There are no requirements to build prototypes in any aircraft project these days, you can deliver MSN001 to a customer if you so wish, as Boeing is doing with the 787 - they will not retain *any* of the flight test aircraft, all of them are being refurbished and delivered to a customer. Boeing also did this with the 777, and the original 747-100.

You do not need to do crash testing or destruction testing of a variant, you only need to do the standard tests to increase the Maximum Takeoff Weight and handling tests, such as the Rejected Take Off and flutter tests. There is a flight test program, but its extremely short compared to a completely new aircraft, which the Dreamlifter is not.

Whomever you got your information from is talking rubbish.

Boeing holds the supplimental type certificate for the 747-400LCF, no one else, and as such the FAA has certified it as a 747 variant.

The only difference the LCF has over a standard 747 variant is it was agreed with the FAA that the Dreamlifter would be restricted in what cargo it could carry, in order to skip the requirements of fire suppression et al in the main cargo bay. As the cargo bay is unpressurised, the FAA agreed that Boeing could get a limited supplimental type certificate on the basis that it would only carry inactive, inert aircraft structures and supporting structures.



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