> This is a very iterative > process, but if done correctly > you will get higher CLmax and L/D > that a tube and wing design.
Hmmm.. but the point is that you only need CLmax and L at landing or take off. When flying at cruise speed there will be too much L with that wing and it adds structure weight and handling at turbulence is horrible. I don't like BWB... also birds do not have it. "Best wing - least wing".
I have to addmit that if you need a plane that can fly very high you do really need all the lift you get so that the case is a bit diferent. But excess wing for a normal cruising plane is still just a nuisance.
exocruiser: you have misunderstood the thing. Planes are not designed like that!
High clmax is the way to have small wing. You are going into woods now backwards with your reasoning, because there never is excess wing in airplane, the wing loading is chosen by designer and how low or high it is depends on the concept and the compromise made.
Center section is of course included in the wing area in design and optimzation phase. Wing area is S by the way. I do not know what is L you are referring to.
Blended config will have smaller wings than tube+wing and weight significantly less than tube +wing.
4 comments:
Karoliina,
I can't wait to see your BWB design ideas...even napkin sketches would be great!
And if you want spectacular CG renders, let me know, I can do that.
About BWB:
> This is a very iterative
> process, but if done correctly
> you will get higher CLmax and L/D
> that a tube and wing design.
Hmmm.. but the point is that you only need CLmax and L at landing or take off. When flying at cruise speed there will be too much L with that wing and it adds structure weight and handling at turbulence is horrible. I don't like BWB... also birds do not have it. "Best wing - least wing".
I have to addmit that if you need a plane that can fly very high you do really need all the lift you get so that the case is a bit diferent. But excess wing for a normal cruising plane is still just a nuisance.
:)
exocruiser: you have misunderstood the thing. Planes are not designed like that!
High clmax is the way to have small wing. You are going into woods now backwards with your reasoning, because there never is excess wing in airplane, the wing loading is chosen by designer and how low or high it is depends on the concept and the compromise made.
Center section is of course included in the wing area in design and optimzation phase. Wing area is S by the way. I do not know what is L you are referring to.
Blended config will have smaller wings than tube+wing and weight significantly less than tube +wing.
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