4130 fuselage truss

[JLS]

Hello,


I'm quite a beginner in 4130 fuselage truss conception and I'd like
to have your opinion about an example.


Is longeron continuity at the tail cone mandatory ?
Is it possible that a cabane be welded to the fuselage tailcone and
not having longeron continuity at all but weldments (as shown in
the drawing below at B and C) ?


Another question is the weldment of longeron with a different
6°angle tube (at A) and I'm asking myself if is it possible or not
(from a strenght point of view).


Last question. Have you a book proposal about 4130 fuselage truss
conception and welding ?


Thanks for sharing your thoughts.