Parametric plane wing using wave linking, tutorial

Designed in Siemens NX6

This is tutorial for one of many ways to use WAVE linking in NX6. Idea was to make plane wing that can be changed with simple change of values in Tools>Expressions. I tried to make this from one part, but it is too complicated to be really useful, so I made it with assembly and wave linking to keep it simple and functional.

NX PMI basic tutorial

Siemens NX PMI tutorial
This is one of possible usages of PMI, one most easies to explain and that is why I chose it for my first video tutorial. 
I hope You will cut this tutorial to peaces and criticize it best You can. I will be thankful for every idea, critics and suggestion how to make next one better.

Thank You