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ccheese
Member In Perpetuity
Thanks for the explanation Charles. I had the impression that the dope shrinks and tightens the paper so I was thinking that it would pull away from the ribs. Makes sense now.
Not quite, Andy. After the area is covered and the dope dries, you spray it with water. This causes the tissue to shrink. Doping with the 50/50 mix of clear dope/thinner seals the pores in the tissue so it can be painted. Also makes it a bit tougher to put a finger through.... but I manage anyway.
BTW, I am using a new method of covering that I read about in a model airplane magazine. It's called "perimeter covering".
You select an area to be covered, cut your tissue to overlap a bit, then dope only the outer perimeter of the area to be covered. I use to dope ever rib and stringer in the area to be covered. This saves time and dope. As for my wings, I just dope the outer perimeter, not the ribs or stringers. It appears to work good.
Charles
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