Jon Matcho Posted June 6, 2004 Share Posted June 6, 2004 I found the firewall plywood I received from Wicks not to be what I expected -- aircraft-grade flat. Instead, it's warped into an odd concave shape (see attached). When sitting on one side, two far corners lift by 3/4". When flipped on the other side, the shorter edges lift in the middle by 1/8". I am thinking that when I cut the plywood longways it will relieve some of this tension. Also, it doesn't take much weight at all to push the piece down flat when on the one side. That being the case, I am thinking to leave it as-is, glass, and let cure with some weight on the top. Thoughts? Quote Jon Matcho Builder & Canard Zone Admin Now: Rebuilding Quickie Tri-Q200 N479E Next: Resume building a Cozy Mark IV Link to comment Share on other sites More sharing options...
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