From an ignoramus point of view, I'd be astonished if they couldn’t. A seasoned pilot can look at an artist's impression and know if it would work-eventually you get a feel for the hidden structural attributes if you have pondered a few Flight International cutaway diagrams. Eventually even a dumb pilot gets a feel for skin thickness, rib dimensions and spar depths. Modulus, strength, deflections, etc. , Aside from materials, not much is new since the B-47