KR> fuel tanks

[feg...@sbcglobal.net]

Thanks for all the advice. Maybe I got a little lazy by asking
the whole group the question on fuel tanks. But it was
driven when I read a KR website that showed two PVC
pipes in each wing. And I realized there may be construction methods I haven't 
heard of yet. ergo my question.
  Apologize for all the heat I took.
JR