All ribs and other parts for fuselage construction are cut on laser cut  from 3D drawings. That allow perfect fit and minimal time for finishing.

Best of all, no need for paper plan during building, thanks to guide in which comes fuselage ribs!!!

How to build fuselage, step by step, you can see here, from topic #222:
http://www.rcuniverse.com/forum/rc-jets-120/10948682-galeb-g2-new-jet-made-serbia-9.html

Ribs:













Other parts: