The flange fabrication has been going really well. The front flange turned out great after trimming, and I decided to continue with the fiberglass flange method for the rear of the plenum.
Here is the front flange after trimming and drilling. I’ll need to figure out the best method for screw installation once the prop and starter ring are installed.
The rear layup was similar to the forward in that I had to split the glass in the middle around the rear support bracket. I also needed to accommodate the part around the oil cooler mount.
I added the peel-ply to absorb extra epoxy.
Once this cured, I trimmed all the excess and drilled the mounting holes.
I drilled all the holes to 11/64th for -8 screws. Next I will install K1000-8 nutplates to the baffles.
RV-7 N890GF 
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