Hello Friends

1. My hand made model weight is about 600gr including everything and wing wing weight is about 150gr so is it ok or wing weight should be less ?

2. I have made wing using 4mm coroplast 38"x7.5" , I have bent the wing to generate airfoil shape so is it ok?

3.  how airfoil shape effects to plane ?

I have realflight software where lots of airfoil shapes are to choose, there is also flate airfoil shape and with the shape the model fly well !!!   

Wat have u used for spar?