also here is another when i join the parts ...i cant get center point to be the same and then duplicate it over correctly. i know this is a huge problem but cant get it correctly done. need simple step by step instructions please ... both are same issues i believe . i combine the wing and then main part and then duplicate center is off . If you just duplicate you will see . i cant figure out how to get it straighten out. i know some of you have told me but still unable to do it . oh i have not combine the wing and main body yet. you can do that to see what I am talking about