Wing Spar Cap Swelling - NOT
Can you see the swelling?



And here is the biggest difference.



And another big difference.



The spar cap was flush wth the foam just prior to peel-ply. Here are some fairly decent areas.



And another one.



I had everything nice and flat just prior to the peel-ply. I used a credit card to drag it across the spar cap several times.
But look at those ripples that came through after cure.



I just don't get it.

I will be doing the top spar cap this weekend. I will take pics during the layup, just prior to
peel-ply, then afterwards.


...

Well I was wrong. It was my stippling which caused the "swelled" valleys!

Dang, 7 spar caps to realize that!

Thanks Wayne Hicks for pointing it out. Oh yeah, and also for the contour tool.

Before:






At the end of the layup.



Wow, look how nice that look like.




And after cure.