|Quoting abba (Reply 193):|
How much longer do you think CFRP will allow the 6 across tube to become compared to the 321 and still keeping good structural efficiency? And how would that translate into capacity?
I'm a fluids engineer, controls engineer, combustion engineer, a test engineer, and team(S) lead; I'm not a stress engineer, so this is my opinion. I think a CFRP wing and (partial) keel, mated to a beercan body, could be up to 6m longer. New structures will allow the cabin to shift back a little (1/4m?). So 6 more rows of coach and a door pair or 42 more people.