it is my understanding (which might be wrong…..) that boeing plan to literlally ‘spin’ the fuselage sections on a huge loom, doing so means that boeing can simply incorporate windows doors/a.n.other holes at this stage which is by far the strongest way to make apertures in composite structures…..as castor points out you have to know how the structure is loaded or you’ll just endup 1. making it understrength or 2. piling the layers and thus the weight on, ‘just to make sure’…….this is why metallic wins over composites for things like wing ribs as you can make a metallic rib lighter for the same strength, because of course it can be considered to have no primary axis of strength as such, unlike uni-axial tapes, however 3 direction plus fibre weaves exist, and are useful at the expense of drapability.

well I am dfdsrphgf#d’rjgsdp0ht#thpjedp0ohtgre]#ujh’psorh#psrtjh#phj’aeorphgs’frdtg no worse the wear for it….

lol your just not trying hard enough arthur………….

a special reason? like the type being completely unsuitable for the job it was doing?

pah!

i believe they try and make all control surfaces composite to cut down on weight……

fairey power spray is the very best way of taking paint off of plastic………apparantly its good for the cooker too but I dont stoop to such activities…..:)

leave for half hour or so and scrub off (i use old tooth brush)

fumes are bit potent tho……..

anythings possible if you have the money…..:)

wouldnt look much like a bwb airliner…..it would just need short stubby wings, a fairly low aspect ratio and a means of putting thrust onto/around/under those short stubby wings………

having just read the merits on the news clipping posted above…..

1. it will initially be MORE expensive than conventional airliner construction

2.different size aircraft in a family do share many similar parts, because increasing the size of the aircraft generally only means a fuse plug and perhaps some bigger engines (some wing rib/pylon re-work)…..different size bwb’s could probably share only very few common parts………such as nuts and bolts.

3.tanker aircraft can already refuel multiple aircraft simultaneously….nothing new here.

two things will make a bwb airliner a non-starter for some time……..

1. Most definitley passenger evac would be a real problem in that aircraft……indeed getting people in to the aircraft isnt going to be quick if theres only 1 door at the front….(you could put doors in the wing leading edge i suppose, but the aero section will HATE you for that.

2.public perceptions…..the shape, having to sit without a window close by……’new’ technology=low confidence (well to the consumer anyway)

BUT it would make an excellent freighter due to the large internal volume. The structure benefits may not be as great as you think, as there wil be a large percentage of the structure which will not contain any form of ribs. if this is built on the hoop and stringer type assembly as aircraft fuselages are today, it is easy to see that the pressure concentrations throughout the aircraft cabin will be different, which means that some parts of the aircraft will hav to be much stronger to resist deformation (ie spanwise parts of the hoops/frames) given the amount of useable volume on offer a great deal of fuel could be carried, and along with todays modern engines, and enhanced l/d (besides 3d wing design algorithms/programs) you could have an extremely efficient aircraft………….as for those other liabilities, composite manufacture is no longer an issue in terms of shapes…in terms of structural integrity yes there are still many and varied issues there…..(however airbus are planning an aircraft after the a350 which will have a FULLY composite wing ala the ‘fully’ composite a400m wing (which will have metallic wing box ribs, because they are stronger per unit mass than composite….)) unusual strains on hydraulic systems….complex flight controls……whatever, the horten brothers did in the forties what northrop did in the 80’s…..and northrop need 5 computers to do it………

melv, if you’ve beaten me to getting your airplane into the air (or well…….virtual air ) a very well done!

coanda