To be perfectly frank, it would be an impossible task for anyone to write a complete tutorial and/or book covering every aspect of aircraft design for any FS version...
...there are simply too many options and variables in play at one time!
I've written many white papers, tutorials and mini-tutorials over the past decade+, but none of them covered but only a tiny fraction of the entire process, choosing to focus on a narrow topic of interest.
My best advice is to focus on one single area at a time, starting with a simple target, and seek to build your knowledge in small bites.
You would do well to go through Milton Shupe's tutorials - a list of which and links are
here. While Milton models for FS2004, the principles are the same. The main difference will be in texturing (where you have to create the FS-X materials) and certain animations.
However, once you get to that point, it will be easier to "set you up".
Of course, for either FS-X or FS2004 modelling, you HAVE to have the appropriate gamepack installed.
Note that those tutorials don't really touch on the intricacies of creating a VC, etc.
Granted, the SDK documentation is not for the faint hearted, and I don't know of anyone who created an FS-X model solely by reading the SDK, without reading this (and other) design forums.
I learned most of what I know by diligent study of the SDKs, a lot of forum diving, asking focused questions and practice, more practice, and still more practice...
There is no "magic button" to create FS-X content...!!
