787 wing flex

In article ,
says...


On Wed, 07 Nov 2007 16:50:58 -0800, Kingfish
wrote:

I noticed in all the publicity pictures of the 787 and 747-8 that the
wings flex to the point that the tips are well above the top of the
fuselage. Just a guess here, but is this due to the composite
construction of the plane? I'm assuming the spar(s) are composite as
well as the fuselage barrel. Then again, the 747-8 is all metal IIRC.
What gives?

You said the magic word - publicity.
The extreme flex is due to the composite nature of the artist's
imagination. There's little doube when the 787's are on the ramps and in
our skies they will look much more like other planes than Boeing
advertising execs want us to think at this stage.



http://www.youtube.com/watch?v=6Uo0C01Fwb8

Great video, but unrelated to the OP's question - not to mention
different airplane. . .

Airbus wrote in news:473298a3$0$7119
:

In article ,
says...


On Wed, 07 Nov 2007 16:50:58 -0800, Kingfish
wrote:

I noticed in all the publicity pictures of the 787 and 747-8 that the
wings flex to the point that the tips are well above the top of the
fuselage. Just a guess here, but is this due to the composite
construction of the plane? I'm assuming the spar(s) are composite as
well as the fuselage barrel. Then again, the 747-8 is all metal IIRC.
What gives?

You said the magic word - publicity.
The extreme flex is due to the composite nature of the artist's
imagination. There's little doube when the 787's are on the ramps and
in
our skies they will look much more like other planes than Boeing
advertising execs want us to think at this stage.



http://www.youtube.com/watch?v=6Uo0C01Fwb8

Great video, but unrelated to the OP's question - not to mention
different airplane. . .



It is completely related and the flexibility of the 787's wing would
have been known by Boeing at an early stage.



Bertie