I can start now by showing how to draw the fuselage, at less the rear part of the fuselage.
This part is simple, into this I have to put some bulkhead and finally I have to colorize it and put on it the nationality mark. With one component I can summarize a lot of techniques.
Let's go!!
I start drawing some line on the surface of the TopView to score the width of the fuselage at the major points. The TopView is a group so the lines are free from the surface.
Then I hide the TopView and I move and copy the lines I drawn to score the major points on the SideView. The SideView is also a
Group so ….
Now I can join the extremities of the lines to build the flat surface of the fuselage.