The short kit contains all ribs, spars, wing joiners and other necessary parts. Spars & wing joiners...Parts are laser cut from 3D drawings! First seven ribs are from 3 mm poplar plywood and outer ribs are from 3 mm balsa... In kit are retracts doors and plates for inner doors air cylinders... 10 mm balsa plate is for all leading edges... Vertical parts for boxes between spars and ribs. Some are from 3 mm poplar ply and some from 3 mm balsa. For finish wing only need to buy are 3 mm balsa planks for sheeting. How to build wing, step by step, you can read here, from topic #199: http://www.rcuniverse.com/forum/rc-jets-120/10948682-galeb-g2-new-jet-made-serbia-8.html |